workers.dev

Access to arbitrage opportunities between Polymarket and Kalshi. Disclaimer: Opportunities are based on live market data and may expire if time passes. We do not guarantee opportunities, you are responsible for your own losses. Always confirm the math for arbitrage yourself. No warranties or liability.

Borrower health-factor lookup by EVM address. Returns current health factor, collateral, debt, and protocol across all monitored lending markets.

DLF agent API key — $0.10 unlocks 10,000 mcents (1:1 starter) + $0.05 activation bonus unlockable by labeling 5 images

Liquidation execution leaderboard. Top liquidators by tx count, profit, and protocols hit. Useful for MEV searcher competitive intel and bot benchmarking.

Real-time at-risk DeFi borrowers across Aave V3, Morpho, Comet, Euler V2, Fluid, Moonwell, Spark on 11 EVM chains. Returns health factor, collateral, debt, and protocol. Updated every 5 minutes from the liquita liquidation engine.

Convert an amount between two currencies with synthesized bid/ask spread and effective rate. Query: ?from=USD&to=EUR&amount=100&spread_bps=50. Source: ECB via frankfurter (keyless).

EURC peg monitor — unique combined signal: the official ECB euro reference rate (USD/EUR) versus the live on-chain EURC/USDC price from the deepest Uniswap v3 pool on Base, returned as a deviation in basis points with both source values and timestamps. Tells agents holding or pricing EURC how far the on-chain euro stablecoin trades from the official euro. No input required.

Render a web page and return its content as markdown

Screen a company or organisation name against two official sanctions lists in one call: the EU consolidated financial sanctions list AND the UN Security Council consolidated list (entity sections only — no persons). Normalised name matching across all registered aliases; returns per match the source list (EU/UN), matched names, programmes, designation date and source link, plus each list's generation date. not_listed is no clearance; other jurisdictions (e.g. OFAC) are not covered.

Keyless fact-grounding: search Wikipedia for any topic and get the matching article titles with extract snippets and canonical URLs — the cheap knowledge read agents make to ground answers and reduce hallucination. Free upstream (Wikimedia API).

Delta of the MCP registry since a daily baseline: added, removed, and changed (score/status) servers — the cheap habit endpoint for repeat callers.

Decode an EVM signature request (EIP-712 typed data, Permit/Permit2, or ERC-20 approve calldata) into a structured intent: what token, which spender, how much, until when, plus risk_flags and an action_hint. Deterministic, no LLM. Answers an agent's question 'what am I about to sign?'

Why is my x402 service not listed — or listed but never paid? Send your endpoint URL; we fetch your 402 envelope, run the exact SDK validation the CDP facilitator runs, check catalog presence, and return per-check pass/fail with concrete fix hints. Includes two undocumented traps we verified against the live facilitator: a buyer must echo your bazaar extension into the settle payload, and a description over 500 characters makes the facilitator reject every payment. Deterministic, no LLM.

Full plain-text transcript of a YouTube video, de-duplicated and cleaned from the captions. Accepts a video id or URL. Ideal for feeding video content to LLMs. JSON response. $0.01 USDC per call, pay via x402, no API key.

OCR a Japanese invoice (請求書) into JSON — vendor, line items, 8%/10% consumption-tax (消費税) breakdown — and verify the qualified-invoice registration number (適格請求書 インボイス登録番号 / T番号, T+13 digits) against Japan's National Tax Agency (国税庁) registry in one call: qualified/cancelled, registered-name match, corporate record (法人番号). Pre-payment 経理/AP check. POST {url|base64} (PDF/JPEG/PNG). First 2 pages. Failed analyses not charged.

Paid Aave V3 liquidation-risk verdict for agents before they borrow, lever, liquidate, or allow autopay. Returns buyer_decision, evidence_summary, execution_policy, next_action, live health factor, and liquidation trigger distance. Buyer-intent match: Aave liquidation risk, health factor API. Price 0.03 USDC on Base via x402. Demo/preview: https://liquidation-risk-mcp.mtree.workers.dev/demo/aave_v3. Contact: https://liquidation-risk-mcp.mtree.workers.dev/contact.

Aggregated crypto market snapshot: prices, Fear & Greed, DeFi TVL, dominance, top stable yields.

Checks domain certificate logs on CertSpotter for SSL expiry dates and issuers.

Search-grounded answer with source URLs, synthesized by a local LLM with no cloud token dependency.

Japanese business-day calculator: check if a date is a business day, add N business days to a date, or count business days in a range. Accounts for weekends and Japanese national holidays; optional Saturday and year-end/new-year rules.

Paid agent card and well-known validator route for autonomous agents. Returns JSON with provenance, route-specific evidence, and machine-readable fields. Price 0.03 USDC on Base via x402. Demo/preview: https://agent-card-validator-mcp.mtree.workers.dev/demo/lint. Contact: https://agent-card-validator-mcp.mtree.workers.dev/contact.

Triage security alert emails for urgency, severity, likely cause, and evidence collection steps without storing message bodies.

Retrieve a seven-day USD-denominated report of Tether bridge flows on Ethereum. This is a bounded onchain stablecoin intelligence product backed by The Tie's data API.

Email verification and deliverability check without sending anything: syntax, MX records, disposable-domain detection (121k+ known domains), role-account and free-provider flags. JSON verdict with a bounce/deliverability risk level. Validate emails for signup fraud prevention, list hygiene and lead qualification. $0.004 USDC per call, pay via x402, no API key.

Fetches live Arbitrum L2 gas price estimations from the mainnet RPC pipeline.

Generates a QR code image buffer from a text string.

Domain trust and company-domain intelligence: evidence-backed assessment using RDAP registration data, DNS/security reputation search, and a structured risk analysis. Surfaces fraud, typosquat, and low-trust domains for vendor or counterparty due diligence.

Evaluate a US property address for parcel match, FEMA flood zone, flood proximity, taxing entities, school district, permit history, zoning/land-use context, insurance red flags, due-diligence risk score, quality score, recommended next steps, and official source links.

Checks domain registration availability by checking SOA DNS records.

Japanese national holidays for a given year (1955-2027), from the official Cabinet Office dataset.

Current gas price and latest block for Base or Ethereum mainnet, straight from public RPC. Fresh within 15 seconds. JSON response. $0.002 USDC per call, pay via x402, no API key.

VAPE chain_protocols — Top protocols on a chain by TVL (default Base), each with its real logo, category, and 24h/7d change — the chain-ecosystem view.

VAPE token_chart — Daily price series for a token (default 30d), plus the token's real logo — feeds sparklines and a rule-based volatility read.

Crypto fear & greed index (current + previous reading). JSON.

One-call market snapshot: BTC/ETH/SOL spot + 24h change, crypto fear & greed index, and SPY/QQQ/DIA/IWM quotes. JSON.

All DeFi yield pools (APY / TVL) across chains. Source: DeFiLlama public API (free).

Resolves geographic city, region, ISP, and coordinates for an IP address via ip-api.com.

Fetches current Ethereum Mainnet gas price from the public DoH RPC pipeline.

Review Cloudflare Worker source and optional wrangler.toml for hardcoded secrets, unsafe CORS, missing admin auth, sensitive logging, and dynamic code execution.

Queries target URL headers to score security configurations (HSTS, CSP, X-Frame-Options).

Polls the disposable inbox for messages and verification codes.

Generates a temporary disposable inbox address using the free 1secmail.com service.

Queries historical website snapshots from the free Archive.org API.

Queries public SMS verification boards to retrieve recent OTP codes.

Lists active public numbers available for temporary SMS verification codes.

Map compliance audit email requests to evidence items, owners, systems, and follow-up questions by framework.

Summarize vendor email risk for compliance claims, subprocessors, retention, DPA language, and breach notifications.

Test endpoint for verifying x402 payment integration end to end. Returns a static greeting in the Agent Tollbooth standard response envelope. Not a data product — use it to smoke-test your x402 client for $0.001 before calling our compliance endpoints: OFAC sanctions screening ($0.01) and FDIC bank verification ($0.01), listed under this same payTo address.

Full Hyperliquid funding extremes (carry-cost leaderboard)

Return a focused AWS IAM risk score and severity summary for a submitted IAM policy document.

Company intelligence lookup: resolve a US-listed company ticker through the SEC EDGAR company ticker dataset. Returns CIK, ticker, and registrant name for company research, SEC filing discovery, and equity due diligence.

Source-linked news briefing: deduplicated current web results, concise LLM synthesis, sentiment overview, key takeaways, and watch items.

Raw RDAP registration record for a domain, returned as structured JSON.

Daily digest and market analysis report of the Japanese game industry: original English-language analysis and news summaries curated from Japanese-only sources, with a link to every original article. Updated once per day. No API keys, no sign-up — pay per call in USDC on Base via x402.

PolySignal paper-trading performance summary, including win rate, ROI, PnL, open trades, settled trades, and tag-level breakdowns.

Polymarket prediction-market listings. Query: ?limit=1-100. Source: Polymarket Gamma API (free).

Japanese receipt (領収書/レシート) → normalized JSON + qualified-invoice verification in one call. OCR: merchant, date & time, items, totals and the 8%/10% consumption-tax breakdown. The registration number (T+13 digits) is extracted and verified against the National Tax Agency registry, so an expense agent knows instantly whether the receipt supports input-tax credit (仕入税額控除). Send {"url"} or {"base64"} (photo or PDF). First page. Failed analyses are not charged.

Resolve a Japanese company to its official registry record: 13-digit corporate number (法人番号), canonical registered name, head-office address, entity type, and active/closed status. Query by name (fuzzy normalization: legal-form words, zenkaku/hankaku and kana variants are handled) or by corporate number. Source: National Tax Agency corporate number registry, all ~5M registered corporations in Japan.

Before your agent onboards, pays, or contracts with a counterparty: screen the name against the U.S. Treasury OFAC sanctions lists (SDN + Consolidated non-SDN, synced every 6h) for $0.01. Benchmarked 114/114 sanctioned names found with zero false positives on a 152-case adversarial corpus of misspellings, word-order swaps, and transliterated aliases. Ranked candidates with confidence 0-100, program tags, and match evidence. Assistive screening signal, not a certified compliance determination.

Scan submitted text for exposed secrets and return redacted output without exposing matched secret values.

Extracts brand logos and theme colors for any public business URL using Clearbit and HTML parsing.

Scans recent block gas details to estimate the minimum, average, and maximum base fee.

Queries live US river level, streamflow gauge height, and flow velocity metrics using the USGS National Water Information System.

Queries DNSSEC (DS) and Certification Authority Authorization (CAA) records for a domain using Cloudflare DoH.

Scans native balance and ERC-20 token balances for a wallet address on Base or Ethereum.

Curated ERC20 token balances across high-volume EVM chains with D1-backed historical wallet snapshots and source coverage. Price 0.15 USDC on Base via x402. Demo: https://wallet-portfolio-history-mcp.mtree.workers.dev/demo/tools/token_balances. Contact: https://wallet-portfolio-history-mcp.mtree.workers.dev/contact.

Foreign exchange reference rates from the European Central Bank. Base currency plus optional symbols filter. Updated daily on ECB schedule. JSON response. $0.002 USDC per call, pay via x402, no API key.

Detect whether an email address uses a disposable / throwaway domain (Mailinator, TempMail, etc.). Classifies the INPUT address. Static list match, no external call.

VAPE bridges — Tracked bridges ranked by recent daily volume — bridge exploits are a top attack class, and this is the capital-flow data that category needs a source for.

VAPE liquidity_check — Liquidity depth + top pair DEX for a Base token. Real on-chain/market data, no simulation.

VAPE yields — Yield pools filtered by chain/project/symbol, ranked by TVL, with apy/apyBase/ilRisk/exposure — enough to tell a real yield venue from a trap (huge APY + tiny TVL = red flag).

VAPE chain_overview — A chain's headline TVL and its rank among all tracked chains (default Base).

VAPE rug_pull_alert — Owner-power / rug-risk flags (mint, blacklist, pausable transfers, LP concentration). Real on-chain/market data, no simulation.

VAPE chain_fees — Fee-earning protocols on a chain, ranked, each with its logo (default Base) — the chain's real economic activity, not just parked capital.

VAPE protocol — Full protocol record: per-chain TVL, category, audits, the official logo, Twitter, and description — the 'who is this protocol' snapshot.

VAPE dossier_check — VAPE's deepest instant verdict: weighted 0-100 risk score, meme-factory-template detection, recent-hack correlation, public web-reputation search, a live check of the project's declared socials, and a frontier-LLM quick read of the verified source. Real on-chain/market data, no simulation.

VAPE exploit_check — Contract verification + proxy-swap surface check. Real on-chain/market data, no simulation.

VAPE token_safety_check — Full token safety + liquidity scan with a weighted 0-100 risk score. Real on-chain/market data, no simulation.

VAPE stablecoins — Stablecoins by circulating supply with live peg price and a computed depeg amount — a de-pegging stablecoin is a live systemic threat signal.

VAPE token_intel — A full independent read on one token: current price + a 0-1 confidence score, first-ever-recorded price (an oracle-derived age signal harder to spoof than a DEX pair timestamp), the token's real logo, and — when a protocol slug is given — fees/revenue, the next unlock event, and treasury own-token share.

VAPE dex_volumes — DEX trading volume on a chain by venue, each with its logo (default Base) — real trading activity across the chain's exchanges.

VAPE market_intel — Base TVL with 24h/7d change, per-protocol share/category breakdown, concentration risk, 24h DEX volume, top gainers/losers, ETH/BTC prices, Fear & Greed index, global market cap, and a real-data narrative summary. Takes no input -- always a whole-of-Base snapshot, not a per-token lookup. Real on-chain/market data, no simulation.

VAPE protocol_fees — A protocol's real earned fees + revenue (24h/7d/30d/1y/all-time) with its logo — 'does this actually make money, or is it just parked TVL?', a legitimacy signal raw TVL misses.

Verify a Japan qualified-invoice-issuer registration number (インボイス登録番号, "T" + 13 digits) against the National Tax Agency publication dataset. Returns registration status (active/cancelled/not found), registration date, and — for corporations — the registered name and corporate number. Includes corporate-number checksum validation. Essential for AP automation and expense agents processing Japanese invoices/receipts.

Verify a Japanese qualified-invoice registration number (適格請求書発行事業者 インボイス登録番号 / T番号, T+13 digits) against Japan's National Tax Agency (国税庁) registry — no OCR. Returns qualified/cancelled/not-found, registration date, registered name (法人名), corporate number (法人番号) and registry record, checksum, plus optional fuzzy name-match (&name=). Cheapest pre-payment counterparty check for Japanese invoices (請求書).

Real-time current weather conditions for a city or location, including temperature, humidity, precipitation, wind, and a human-readable condition.

Queries historical temperature observations for a coordinate and date.

Sends automated email notifications using the Resend API.

VAPE treasury — A protocol's on-chain treasury composition — total USD, own-token USD, and the own-token share (a treasury that's ~all its own token is a fragility signal).

Access to live crypto market data

Active weather alerts — Active NWS watches/warnings for a US coordinate.

Extract the full text of a PDF from a URL. Returns plain text, page count and word count. Handles reports, papers and documentation up to 25 MB.

Extract the main article from any web page as clean, LLM-ready markdown. Returns title, byline, site name, publish date, excerpt and markdown body with boilerplate (nav, ads, footers) removed. Ideal for agents that need page content without burning tokens on raw HTML.

Parse an XML sitemap or sitemap index into JSON: up to 5000 URLs with lastmod and priority, or the list of child sitemaps. Useful for agents planning site crawls or auditing site structure.

Convert raw HTML you already have into clean markdown. Send JSON {"html": "..."} and get back markdown with scripts, styles and boilerplate stripped. Cheaper than /read when the agent has already fetched the page.

Extract structured metadata from any web page: title, description, canonical URL, Open Graph and Twitter card tags, favicons, JSON-LD types, language and headings. Useful for link previews, content classification and SEO analysis.

Parse any RSS, Atom or RDF feed into normalized JSON: feed title, description and up to 100 items with title, link, publish date, author, summary and categories. Ideal for agents monitoring news sources, blogs and changelogs.

DNS lookup over Cloudflare DoH: query A, AAAA, CNAME, MX, NS, TXT, SOA, SRV, CAA or PTR records for any domain and get structured JSON answers with TTLs. Useful for domain research, email validation and infrastructure checks.

Air quality — US & European AQI plus pollutant concentrations by coordinate.

Is the wallet paying for this request rich? Same on-chain check as /is-rich, against the payer's own address.

Audit a public https URL. POST {"url":"https://your.site","min_score":80} ($0.02). After payment we fetch the origin (headers, HSTS, CSP, TLS, cookies, DNS/email, security.txt) and return a 0–100 score, do_this_first, and ci_failed for CI. Free preview is snapshot-only {headers}. Badge: GET /v1/tools/site-hygiene-score/badge?host=your.site.

BTC-USD spot price, delayed quote via Yahoo Finance

A live kanban board your agents work on and your human steers, for 30 days. One call returns an MCP endpoint, a key per agent, and a one-click link for your human: no signup, no password. Agents create and move cards; your human watches it happen in real time, drags cards and leaves notes, or connects their own chat to the same MCP endpoint and steers from there. WIP limits and a full audit log live in the database, so no agent can route around them. Free access links, renew for $2.

Botpay NFT minting API access

Audit short landing-page copy for clarity, outcome, call-to-action, and readable length.

Bitcoin mining difficulty, via Blockchain.info stats API

Bitcoin network hash rate, via Blockchain.info stats API

Business-day math — Count business days in a range, or add/subtract N business days, skipping weekends & holidays.

CFR legal text — Fetch current Code of Federal Regulations text for a citation.

Render a bar/line/area chart to SVG (v2 discovery probe)

Check a URL before fetching it: is it alive, final URL after redirects, HTTP status, content type, HTML title, and whether robots.txt allows your user-agent. Link checker and fetch preflight for agents.

Cheap polling for a crypto opportunity you already retrieved: send signal_id plus the known_version you hold and receive whether it changed, the current version, live status (ACTIVE/STALE/INVALIDATED), which change types occurred (score, classification, entry zone, economics, execution blockers, status) and next_check_after — no full signal payload. Built for monitoring an active opportunity over time. Market intelligence only: no execution, no custody, no position sizing. Paid per request.

Is this crypto entity MiCA-authorised in the EU/EEA, in which register, with what status? Query params: name (string) OR lei (20-character LEI). JSON: match_confidence (exact|strong|weak|none), authorised (boolean), flagged_noncompliant (boolean), matches[] with register, legal_name, lei, home_member_state, competent_authority, status, services[], authorisation_date. Data source: ESMA Interim MiCA Register, official EU data; refreshed daily from weekly ESMA publications.

Evaluate whether a statistical claim is supported and properly framed by its cited source

CitationVerifier evidence extraction: extract factual evidence, quotations, dates, names, organizations, and numbers from a source

Clanker Banker llm-pack: URL→token-budgeted LLM-ready markdown for AI agents. html-to-markdown, web scrape offload, RAG ingest pack. ~$0.005 USDC Base x402. Pay-to-probe on /v1/inspect|/v1/resolve. Quote: GET /v1/quote?tool=llm-pack.

Clean text: strip HTML, normalise unicode/whitespace, dedupe lines. Returns cleaned text plus stats.

Stopped clinical trials with the stop reason classified. ClinicalTrials.gov records why a trial halted as free text; this reads that text and separates safety and efficacy failures from business, recruitment and funding stops, which are the ones people routinely misread as drug failures. Filter by sponsor, condition, intervention and phase, and get the cohort-level breakdown alongside the records.

Contract-code check for a Base mainnet address (is_contract + code size + EIP-7702 delegated-EOA detection).

Official Swiss company check from the Zefix register (Central Business Name Index, federal). Look up by UID (exact, e.g. CHE-105.909.036) or search by name (up to 5 candidates). Returns official name with translations, legal form, register status (active / in liquidation / deleted) with deletion date, legal seat, purpose, address and last SHAB publication date, with a direct link to the cantonal register excerpt. Companies only.

Official Norwegian company check from the Enhetsregisteret (Brønnøysund Register Centre, open data). Look up by organisation number (exact) or search by name (up to 5 candidates). Returns official name, organisation form, industry code, employee count, registration date, business address and — directly from the register — bankruptcy and liquidation flags, with a direct register link. Companies only.

Polish VAT whitelist check (official Ministry of Finance register). Verifies a company's VAT status by NIP and — uniquely — whether a given bank account number (NRB) is registered to that company in the tax register: the standard Polish invoice-fraud check before paying a supplier. Returns VAT status, REGON/KRS, address, registered-account count and the official consultation confirmation id (request_id). Companies only.

Compare two factual claims and their cited sources for agreement, contradiction, and missing context

Compare two texts — unified diff patch plus added/removed/unchanged counts, by lines, words, or characters. Verify edits and detect changes deterministically.

Computed next-actions plan: unblocked tasks, blocked tasks + reasons, critical path

Computed next-actions plan: unblocked tasks, blocked tasks + reasons, critical path

Read any web page as clean LLM-ready markdown for $0.003 — the natural companion to /web/search. Send a URL, get back the readable core: title, headings, paragraphs, lists and links, stripped of scripts, styles, navigation and other boilerplate. Choose markdown or plain text and cap the size with max_chars (default 20000; a truncated flag tells you when the cut hit). Unreachable or non-HTML targets cost nothing. Pay per call in USDC, no account, no API key.

URL-to-Markdown web extraction and context compression for AI agents. Fetch a public web page and return clean, task-relevant, citation-verifiable LLM context with exact excerpts, locators, hashes, and

Convert an array of JSON objects into CSV — column union across rows or explicit column order; nested values are JSON-stringified into cells.

Convert HTML to clean Markdown — turn scraped web pages into LLM-ready text. Handles headings, lists, tables, links, code blocks. Deterministic, no LLM.

Country metadata — Name/ISO code → currency, capital, calling code, languages, flag.

Crawl one site in one paid call: start URL + max_pages (2-20); we follow same-host links breadth-first, returning each page as clean markdown (same extraction as /web/contents). Priced at $0.001 per requested page, quoted as max_pages up front — finding fewer pages is still a complete delivery. Failed pages are skipped and listed in skipped[]; the call still settles. Only an unreadable start page is a 400, no charge. USDC on Base, no account, no API key.

Cross-venue Hyperliquid+OKX+dYdX perp funding rates — top coins by 24h notional volume, per-venue funding + arb spread (bps) + cheapest-long/richest-short venue, premium/basis, annualized_hl, annualized_okx, LONGS_PAY/SHORTS_PAY/NEUTRAL signal, next_funding_ts, mark/oracle prices, open interest.

Crypto Fear & Greed Index (0-100) via Alternative.me, daily sentiment gauge for Bitcoin and major cryptocurrencies

Is this crypto firm authorised in the EU? One call checks the official ESMA interim MiCA register of authorised crypto-asset service providers (CASPs) AND the EU non-compliant entities warning list. Search by firm name, platform website/domain, or LEI. Returns authorisation details (member state, competent authority, authorised services, LEI) and any warning-list entries, each with an official source reference. Firms only. Counterparty/scam check before sending funds to a platform.

Real-time crypto market news with sentiment analysis and top headlines ranked by importance, for $0.01 per call. One request, no parameters needed — get the latest market-moving stories as structured JSON, ready for trading agents and research pipelines. Relayed live from a proven upstream source; if the source is down you get a 503 and pay nothing. Pay per call in USDC on Base — no account, no API key.

Multi-coin crypto spot price snapshot (BTC, ETH, SOL, XRP, DOGE) in a single call, delayed, via Yahoo Finance

Crypto spot price — Spot price for a crypto asset in a fiat/crypto quote currency.

Currency exchange rates — Reference FX rates (ECB) with optional amount conversion.

Current Base mainnet block number.

DNS lookup — Resolve DNS records via DNS-over-HTTPS.

Daily state of the x402 agent economy: observed USDC inflow, seller ranking, category demand, growth, and coverage. Reports its real observation window; concentration adjustment applied only when scan coverage supports it.

Date and time arithmetic done right: difference between two datetimes, add or subtract ISO-8601 durations, convert an instant into any IANA timezone with UTC offset and weekday.

Decode a JWT — header, payload, and timing analysis (issued/not-before/expiry as ISO timestamps, expired flag, seconds until expiry). Decode only; signature is NOT verified.

What are agents asking for that they cannot buy yet, aggregated over 30 days. From our own measurements: calls we rejected on an uncovered value where the caller had already presented payment (kind is typically coin, country, vies_country, monitor_host or sms_service — free-form values possible), free requests filed by agents, and settled $0.01 intents. Demand at one provider, not a network-wide picture. Aggregates only: no wallets, no free text, no subject ids.

Scan package.json or lockfile text for dependency CVE risk signals — outdated lodash/axios, deprecated packages, wildcard pins, risky postinstall scripts, and embedded secrets.

Detect factual conflicts, scope differences, and unresolved tensions across supplied sources

AV/IT device integration facts for AI agents writing drivers and integrations: control protocol family, transport, TCP/UDP port, connection notes and field-tested gotchas for professional audio-video, lighting, shading and network devices (Crestron, Samsung, Shure, Somfy, Huawei, MikroTik and more). Curated first-hand by working systems integrators.

Diagnose why an x402 seller is invisible on Coinbase Bazaar. POST your 402 PaymentRequired JSON. Free preview: pass/fail + which checks fail. Paid $0.01: every finding with the exact fix (extension shape, AJV schema, description limits). Run before each x402 deploy.

Combined domain health verdict in one sub-second call: authoritative RDAP registration status and expiry (per-TLD registry, IANA-bootstrapped) plus live HTTPS/TLS reachability, weighted into a single 0-100 score with per-component confidence. Returns 502 without charging if every upstream check fails.

Domain registration data (modern WHOIS) via RDAP: registrar, created/expiry dates, status, nameservers, DNSSEC.

Dutch supplier screening — pre-transaction check in one call: validates the EU VAT number (VIES), checks the official Dutch Central Insolvency Register for bankruptcy, suspension of payments or debt restructuring, and cross-checks the legal name against the VAT-registered name where available. Requires legal_name, kvk_number and vat_number. Returns factual attention items with a source reference per finding — no risk scores. Only charged when both registers were consulted. Companies only.

ETH balance of a Base mainnet address, incl. balance_usd.

Ethereum (ETH-USD) spot price, delayed, via Yahoo Finance

Economic indicator — World Bank indicator time series for a country (GDP, unemployment, etc.).

Latest SEC EDGAR filings for any US-listed company for $0.01 per call: 10-K annual reports, 10-Q quarterly reports and 8-K material events, by stock ticker or CIK, sourced live from data.sec.gov. Returns the parsed filing list (company, form type, filing date, direct document URL), filterable with 'since' and 'limit'. Relayed live from a proven upstream source; if the source is down you get a 503 and pay nothing. Pay per call in USDC on Base — no account, no API key.

Email authentication posture for a domain: DMARC + SPF records fetched, parsed, scored 0-100, with findings and fix recommendations.

Email validation — Syntax check + live MX/deliverability + disposable-domain flag.

Encode or decode text: base64, base64url (padding handled), hex, URL percent-encoding, and HTML entities. The conversions agents most often get wrong.

FDA recall and enforcement records across drug, device and food, normalised into one shape with classification, reason, distribution scope and firm. Queryable by firm, product, classification and date. One product type returning nothing never fails the call — the three openFDA endpoints are independent and a gap in one is not a gap in the others.

European supplier screening — one call, an honest per-country coverage matrix. Routes by country (NL, FR, UK, NO, CH, CZ, FI, PL) to the best available official open sources: register profile, insolvency signal (full register search, register flags, or not covered), VAT validation (VIES or the Polish whitelist), EU + UN sanctions screening and normalised name verification. Every response states per dimension what was and was not covered. Factual only — no scores.

Evidence Pack for one event: source-passage excerpts with locators, the retrieval timestamp, sha256 snapshot hash, and a freshness/provenance verification status.

Extend an agent board from /agent/board by 30 days. Give the board_handle you were issued. Renew early and the days are added on top; renew late and the month starts today. An expired board is frozen, never deleted: your human keeps seeing it, every card and note survives, and agents simply cannot write to it until you renew.

Extract structured receipt fields — merchant, date/time, line items, subtotal, tax, tip, total, currency — from a receipt image/PDF. ≤2 pages.

Extract and organize dated events from one to three supplied sources

Fact-check a claim against one to three supplied sources

FaultCode Diagnostics - lookup_dtc. $0.005 USDC per call. Source-attributed definitions for one P/B/C/U code, plus its real appearances in official manufacturer documents when no definition exists. Charged only when the catalog returns a definition or document evidence: a code it has neither of is answered in full and costs $0.

FDA drug label — openFDA structured drug labeling (uses, warnings, dosage).

Subscribe for 30 days to the change feed behind /crypto/scan: one cursor over the upstream advice ledger, all coins at once. Returns a handle and a cursor; polling is then free and unlimited: /crypto/feed/since returns every published change since your cursor — new signals, classification flips, status changes (PUBLISHED/STALE/INVALIDATED), score and entry-zone changes. Be first to know when the market state flips; the full advice per signal stays a separate paid call.

Fetch a live https URL and score whether the deploy is actually there. POST {"url":"https://your.site","min_score":80} ($0.02). Default x402-seller profile: HTTPS, HSTS, llms.txt, catalog, OpenAPI, MCP, health. Optional claims[] or profile:"web". Returns 0–100, evidence, do_this_first, ci_failed. Humans: GET /v1/tools/claim-check/report?host=your.site. Badge goes stale after 7 days.

Computed SEC filing-health verdict (late-filing notifications, restatement events, overdue periodic reports) for one company CIK

Fix invalid, malformed, or truncated JSON — repairs trailing commas, single quotes, unquoted keys, and cut-off LLM output; returns the parsed object plus corrected JSON text. Deterministic, no LLM.

Multi-pair forex snapshot (EURUSD, GBPUSD, USDJPY, USDCNY, AUDUSD, USDCAD, USDCHF, USDVND) in a single call, delayed, via Yahoo Finance

Forward geocoding — Place name → coordinates, country, timezone.

Scan a website landing page for GDPR and CCPA privacy signals — privacy policy links, cookie consent language, and compliance keyword coverage for agent audits.

Current Base mainnet gas price (wei/gwei), EIP-1559 base_fee_gwei/priority_fee_gwei, and gas_price_usd.

Generate prioritized research questions and evidence needs from a topic and optional source

Generic crypto quote via Yahoo Finance. Pass ?symbol=SYMBOL-USD (e.g. ETH-USD, SOL-USD).

Generic stock/index quote via Yahoo Finance. Pass ?ticker=SYMBOL (e.g. AAPL, %5EGSPC).

Deterministic basic GEO audit for a public HTTP(S) URL.

$0.01 AI-agent tool-call preflight: return ALLOW, REVIEW, or BLOCK before an MCP/tool call, payment, fetch, message, write, or execution. One deterministic request combines prompt-injection and hidden-Unicode scanning, SSRF/unsafe-URL screening, JSON Schema payload validation, and atomic spend-mandate enforcement. Returns stable reason codes plus request_sha256 and receipt_sha256; never executes the action; hashes are reproducible, not signatures.

Hash a string or bytes with multiple algorithms in one call: SHA-1, SHA-256, SHA-384, SHA-512, SHA3-256, and keccak-256 (Ethereum). Input as UTF-8, base64, or hex; hex digests out.

Historical evidence behind a crypto opportunity: for its strategy (and coin where enough samples exist) the measured populations — detected, blocked, published, expired without entry, completed, wins, losses, time exits — plus win rate over completed outcomes only with a Wilson interval, average/median/total net return, distinct days and coins, ML model evidence status and the measurement window. Real measurements, never fabricated; short windows have wide error bars. Paid per request.

HivemindOS service router for agents: one paid call returns the full HivemindOS commercial catalog (crypto research, wallet risk, Reddit customer research, media, models, email) with live pricing plus every direct x402 purchase endpoint and exact request examples. Start here to discover what a HivemindOS agent stack can buy.

Perform a fresh active survey of a public internet host and identify exposed TCP services. Returns open services, software fingerprints, HTTP observations and TLS certificate information.

IP geolocation — IP address → location, ASN, ISP.

ICD-10-CM search — Search ICD-10-CM diagnosis codes by term or code.

Google Images search for AI agents at $0.004 per call, from the same Serper.dev source as /web/search. Send a query, get back compact JSON: top image results with position, title, image URL, source page link and dimensions. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC on Base, no account, no API key.

Inflation calculator — Adjust an amount between years using CPI (any country, not just US).

Dutch bankruptcy and insolvency check against the official Central Insolvency Register of the Dutch judiciary (rechtspraak.nl). Detects published bankruptcy (faillissement), suspension of payments (surseance) and debt restructuring procedures. Best results with a KVK number. Returns procedure type, status, dates, court and a source reference per match, with explicit match-basis and coverage notes. A no_match means no publication in the currently searchable register. Companies only.

French insolvency check against BODACC, the official bulletin of civil and commercial announcements (DILA open data). Searches collective procedures (sauvegarde, redressement, liquidation judiciaire), conciliation and professional recovery announcements by SIREN. Returns judgment nature and date, court, publication date and a direct BODACC link per announcement. A no_match means no publication in the searchable set (since 2008) — no historical clearance. Companies only.

What an institutional manager actually changed last quarter. Reads 13F-HR filings for a CIK, parses the information table, aggregates by issuer and diffs consecutive quarters into opened, closed, increased and decreased positions with dollar values and portfolio weights. The diff is the signal — a holdings snapshot on its own says nothing about intent.

Live aircraft positions over Kansai / western Japan from an independent ADS-B receiver (~1s freshness): position, altitude, speed, squawk, plus callsign→route resolution (origin/destination airports) from official timetables.

Probe an x402 URL without paying it: validate the live HTTP 402 challenge, v2 payment schema, Base USDC amount, payTo/network fields, and OpenAPI-to-live price consistency.

Rank live autonomous-agent work from Taskmarket and Task-Bounty by expected value, competition, deadline, skill fit, and entry cost. Call before picking which task to attempt.

LLM chat completion per call — no account, no API key, no token math. Three flat-priced tiers: fast $0.002 (DeepSeek v4 Flash), smart $0.02 (GPT-5.4 mini), reasoning $0.03 (DeepSeek v4 Pro). Send OpenAI-style messages, get the assistant reply with finish_reason and token usage. Input capped per tier (16k-32k chars); the 402 quotes the exact tier price up front. Model or source unavailable means a 503 and you pay nothing. USDC on Base.

LEI lookup (Legal Entity Identifier) from the official GLEIF register. Look up by LEI code or search by legal name (optional jurisdiction filter). Returns the official legal name, entity status, registration status (ISSUED/LAPSED), jurisdiction, legal form and registered address, with a direct GLEIF source link per record. Legal entities only. Ideal cheap first check before deeper company screening.

LEI lookup — Legal Entity Identifier record by LEI code or entity name.

Live crypto trading verdict for a coin (e.g. BTC-EUR), resold from an upstream signal system. Two layers: 'long' (positional ALLOW_LONG/EXIT/HOLD with confidence, summary and primary risk) and 'daytrade' (a 15m LONG/EXIT setup with entry range, stop-loss, take-profit and reward:risk). Pick layer long|daytrade|both. No fresh verdict for the requested layer means 400 and no charge — you only pay for an actual, still-valid verdict. Factual model output, not investment advice.

Live whale alerts: the largest recent USDC / WETH / cbBTC / USDT / WBTC transfers on Base or Ethereum, with USD value, from/to wallets, counterparty labels (contract? verified? scam-flagged?), tx hash and age. The smart-money / whale-watching feed trading agents poll to front-run big flows — a Nansen-style whale alert without the subscription. Each whale wallet chains into /crypto/smart-money (what is this wallet doing?) and /crypto/wallet (what does it hold?).

MCPFax markets crypto

MCPFax markets stablecoin

MCPFax markets — Chain TVL ranking (defi_chains). Price: $0.001 USDC per call on Base.

MCPFax markets — On-chain token prices (defi_token_prices). Price: $0.001 USDC per call on Base.

MCPFax markets — Polymarket markets (polymarket_markets). Price: $0.001 USDC per call on Base.

Get a sourced, versioned medical procedure price corridor with an Ed25519 evidence receipt.

Machine-readable crypto market intelligence: the currently published long opportunities from an upstream advice system, ranked by opportunity_score (0-100 heuristic, never a calibrated win probability). Per opportunity: signal_id, version, coin, classification (STRONG_LONG..AVOID), opportunity type, publication status, entry validity and freshness in seconds. No execution, no custody, no position sizing. Each response names the next useful call. Paid per request; an empty list is a valid answer.

MCPFax markets — Base gas price (gas). Price: $0.001 USDC per call on Base.

MCPFax markets — Polymarket events (polymarket_events). Price: $0.001 USDC per call on Base.

MCPFax markets — Polymarket market + order book (polymarket_market). Price: $0.002 USDC per call on Base.

MCPFax markets — Polymarket trader leaderboard (polymarket_leaderboard). Price: $0.001 USDC per call on Base.

MCPFax markets — Polymarket recent trades (polymarket_trades). Price: $0.001 USDC per call on Base.

MCPFax markets — DeFi protocol detail (defi_protocol). Price: $0.001 USDC per call on Base.

MCPFax markets — DeFi protocols by TVL (defi_protocols). Price: $0.002 USDC per call on Base.

MCPFax markets — Manifold markets (manifold_markets). Price: $0.001 USDC per call on Base.

MCPFax markets — US macro indicators (macro). Price: $0.003 USDC per call on Base.

MCPFax markets — FX reference rates (fx). Price: $0.001 USDC per call on Base.

MCPFax markets — US Treasury yields (rates). Price: $0.003 USDC per call on Base.

MCPFax markets — Cross-venue market search (prediction_market_search). Price: $0.002 USDC per call on Base.

US 30-year fixed mortgage rate average, via FRED (MORTGAGE30US)

Early-warning feed of sudden daily inflow spikes plus strictly qualified first-window large-payer signals. The response states the nominal baseline window and how much of it is actually held. Use this to catch an abrupt change in a service's payment activity within a day.

Multi-source claim check: a supported/contradicted/insufficient_evidence verdict backed by citations (source URL and excerpt) drawn only from provenance-tracked events with a current freshness status.

NAICS lookup — Official 2022 NAICS code → title, hierarchy, children; or keyword search.

Nearest airports — Coordinates → nearest airports (IATA/ICAO) by distance.

Subscribe for 30 days to a change feed of the x402 network, from our own probes (~2 per host per day, 1500+ hosts). Returns a handle and a cursor; polling is then free and unlimited: /x402/network-feed/since returns all that changed since your cursor (down/up, payTo drift, price drift, manifest gained/lost), and /x402/network-feed/check takes up to 50 hosts you are about to pay and returns their last observed status, payTo and price plus changes. Facts only, no scores and no catalogue data.

Daily state-of-the-network report on the x402 ecosystem, built exclusively from our own probes (~2 per host per day): how many hosts we monitor, share of probes returning a valid 402 over 24h and 7d, host status breakdown (ok_402, HTTP errors, unreachable), manifest coverage, and counts of observed changes over 24h and 7d (up/down transitions, payTo drift, price drift, manifest gained/lost) plus the hosts that moved today. Regenerated once per day. Facts only — no scores, no catalogue data.

x402 services first listed since a given date, with first archive observation and conservative early-traction evidence from observed inflow. Entrants MCPFax can attribute — a declared payTo, an observed title, or observed inflow — rank first, and each row states which it carries. A window identifying nobody is refused 422 and charges nothing. Requests before the archive's first date are reported as partially covered. Use this for deal flow on who just entered the market.

Lists entities publicly flagged as non-compliant under MiCA by EU national competent authorities. Query parameter: country (string, optional; 2-letter EU member-state code, e.g. IT). JSON response: count (number) and entities[] with legal_name, commercial_name, lei, home_member_state, competent_authority, website, infringement, reason, decision_date (ISO date), record_updated. Data source: ESMA Interim MiCA Register, official EU data; refreshed daily from weekly ESMA publications.

US non-farm payrolls, month-over-month change in thousands of jobs, via FRED (PAYEMS)

Observed change feed for listed x402 sellers: declared payTo changes with before/after values, other declared-terms changes (price, facilitator, fee payer), registry removals and returns, rating actions, and grade downgrades. Every response reports per-category coverage for the requested window, so a category that produced nothing is identified as an observed zero or an unreadable source rather than left to assumption.

Parse a URL into parts — host, path, query params as JSON, fragment, origin — or resolve a relative reference against a base URL correctly.

Parse and validate a cron expression — returns the next N run times as ISO timestamps in any IANA timezone. Cron schedule checker.

Parse CSV into JSON rows — auto-detects the delimiter, handles quoted fields and headers, optional type coercion. Returns columns, row count, and per-row parse errors.

Parses a receipt, invoice, or fiscal document image/PDF into structured JSON: vendor, date, currency, totals, tax, and line items.

Parse XML into JSON — validates first with line-numbered errors, preserves attributes, optional type coercion. Works for RSS feeds, sitemaps, and SOAP-ish payloads.

Perform the chant: 'All hail the Magic Conch!' The club responds: 'Hooray for the magic conches!' That is all this does, and it is enough.

Photographer Guide: plans a night-photography shoot from a GPS position using live cloud-cover forecasts, moon phase, astronomical darkness and the meteor-shower calendar. Returns scored shooting locations, a driving route with timing, en-route photo stops, a minute-by-minute schedule and an AI narrative.

Google Places (local businesses with rating, address and phone number) for AI agents at $0.004 per call, from the same Serper.dev source as /web/search. Send a query, get back compact JSON: top places with position, title, address, coordinates, rating, rating count, category, phone and website. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC on Base, no account, no API key.

Search Korean news articles from Hankookilbo, a major Korean daily newspaper, with a natural-language Korean query. Returns matching article titles, URLs, publish times, and sections via the official Hankookilbo MCP server. Useful for Korean market, political, and social intelligence.

Search Korea's National Tax Service public disclosure list of high-amount and habitual tax delinquents (고액·상습체납자 명단, National Tax Basic Act Art. 85-5) by Korean company or trade name. Returns disclosed records: total amount owed, tax category, representative, region — for both the corporate and individual lists.

Postal code lookup — ZIP/postal code → place(s) & coordinates.

Paid x402 endpoint for newly created prediction-market data and emerging betting topics.

Preflight before paying an x402 service: is it working right now, and did it work the past 30 days? One live probe of the exact resource URL you intend to pay (status, latency, x402 validity, the payTo/price the service itself publishes in its 402, manifest presence) plus our own monitoring history of the host (30-day uptime, last check, recent changes such as payTo or price drift). Optionally verifies that the pay_to you intend to pay matches the live 402. Facts only — no scores.

Prepare a Veil Cash private USDC send on Base. The x402 price is HivemindOS's disclosed 1% service fee for the requested send amount, with a $0.25 minimum and $10 maximum. Returns time-limited proving-key access for local @veil-cash/sdk execution. The recipient, Veil key, proof, and final transaction never go to HivemindOS.

Current UK weekly average road fuel price (petrol + diesel, pence/litre), sourced live from DESNZ (UK gov)

Product recall safety verdict — recalled (with details) or no recalls found, from live CPSC + openFDA data

Public holidays — Public holidays for a country & year.

Query JSON with a JMESPath expression — extract, filter, project, and reshape nested data with the AWS-standard query language. Deterministic JSON extraction.

PolySignal ranks current Polymarket opportunities by EV, confidence, size hint, risk, and staleness for agent research workflows.

RDAP whois — Structured domain/IP registration data (modern whois).

Computed repo maintenance/abandonment verdict (score + reasoning) from live GitHub data

Read a web page for me: fetches up to 5 URLs and returns the main article content as clean Markdown (nav, ads, and footers stripped) plus title, author, published date, canonical URL, links, images, word count and reading time. Typically 15-30x smaller than the raw HTML, so it saves far more in context tokens than it costs. Honors robots.txt by default. No browser or network access needed on your side.

Real insider conviction from SEC Form 4 filings. Classifies every transaction by its one-letter code, so an RSU vest is not reported as an insider buy and the automatic tax withholding that follows is not reported as a sale. Returns only codes P and S — the trades where someone chose to move money at the market price — plus cluster-buy detection when several insiders buy the same issuer within a window. Query by ticker or CIK.

Keyword-search all of Reddit (or one subreddit) for $0.05 per call — social listening for AI agents without login or API key. Returns matching posts with title, author, subreddit, score, comment count, permalink and timestamp, sorted by relevance, top, new, hot or comments, with an optional time window. Track brand mentions, monitor topics, surface community sentiment. Relayed live from a proven upstream source; if the source is down you get a 503 and pay nothing. Pay per call in USDC on Base.

Render Markdown to HTML — CommonMark with autolinking; raw HTML in the input is escaped, not executed. The inverse of /html/to-markdown.

Render a bar/line/area chart to SVG

Extend an existing crypto change-feed subscription from /crypto/feed by 30 days, using the same feed_handle. Renewing before the expiry date adds the days on top of the remaining time, so polling never has a gap; renew late and the month starts today. Your cursor lives on your side and is unaffected.

Extend an existing x402 network-feed subscription by 30 days using the same feed_handle. Renewing before the expiry date adds to the remaining time instead of restarting it, so polling never has a gap. Your cursor is kept.

Returns safe, machine-readable repairs for failed MCP and API tool calls, including invalid arguments, missing fields, incorrect types and changed tool schemas.

Create a structured research brief from one to three sources with findings, evidence, conflicts, risks, and unanswered questions

Discover, verify, score, compare, and select the strongest x402 resource for a task, with fallback and next-call instructions.

Reverse geocoding — Coordinates → nearest address.

robots.txt / llms.txt — Fetch and parse a site's robots.txt and llms.txt.

Buy a Token Autopsy due-diligence report for any Base, Ethereum, or Solana token in one x402 call. Pay per report in USDC on Base; the report grades the token and covers holders, smart money positioning, deployer history, and red/green flags, and returns a public share URL when complete. Data source: Nansen API.

Buy a wallet risk snapshot for any Base address in one x402 call. Pay per snapshot in USDC on Base; the report scores counterparty risk from holdings, counterparties, and token approvals, and returns a public share URL when complete. Useful before an agent transacts with an unknown wallet. Data source: Nansen API.

Buy a Reddit voice-of-customer snapshot in one x402 call. Pay per report in USDC on Base; the report mines recent Reddit threads and comments on your topic into validated evidence, customer pains, desires, objections, and swipeable phrasing, with a public share URL when complete.

S&P 500 spot index quote, delayed, via Yahoo Finance

Audit domain SSL/TLS certificate expiry, HTTPS reachability, HSTS, and HTTP-to-HTTPS redirect posture using certificate transparency and live transport checks.

Google Scholar search (papers with citation counts) for AI agents at $0.004 per call, from the same Serper.dev source as /web/search. Send a query, get back compact JSON: top papers with position, title, url, publication info, snippet, year and citation count. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC on Base, no account, no API key.

Evaluate a source for credibility, transparency, evidence quality, bias signals, and limitations

Screen declared npm packages before you install them. POST package.json (optional lockfile) ($0.02). After payment we look up each name on the npm registry and OSV: missing/hallucinated packages, lookalikes, brand-new publishes, deprecations, known CVEs. Returns 0–100, do_this_first, ci_failed. Caps at 60 packages; never fetches buyer URLs. Report: GET /v1/tools/dep-doctor/report?project=your-app.

Google News search for AI agents at $0.004 per call, from the same Serper.dev source as /web/search. Send a query, get back compact JSON: top news results with position, title, url, snippet, publish date and source. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC on Base, no account, no API key.

Semantic code search over an indexed repo (top-5 matches)

Structured search over evidence events with full provenance (source URL, sha256 snapshot hash, publish/detect timestamps) and a freshness status (current/stale) per event, across FSA, BOJ, and METI.

Google-quality web search for AI agents at $0.005 per search — half the going x402 rate. Send a query, get back compact JSON built for LLM consumption: top organic results (position, title, url, snippet), the direct answer when one exists, a trimmed knowledge graph and related searches. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC, no account, no API key.

Search and read in one call: a web search plus the full page text of the top results, for $0.006 — cheaper than a separate search and reads. Send a query, get back compact results (position, title, url, snippet) each enriched with the target page's readable content (markdown or text, capped by max_chars_per_page). A page that fails to read carries a read_error instead of content; the call still delivers and settles. USDC on Base, no account.

Deterministic controlled public search snapshot and competitor signals.

SEC EDGAR company facts — Company profile + recent filings; or XBRL financial facts for a concept.

Seed402 wallet diligence report v0: USDC revenue analysis on Base — inflow totals, unique payers, concentration, activity span, and a transparent 0-35 revenue-verification subscore. POST JSON {"address": "0x..."}.

Leaderboard of x402 sellers by observed USDC inflow, with distinct payers, an HHI concentration measure and wash-risk flags. Sellers below the observation floor are returned unrated, not accused. The payer-graph discount applies only where wallet scan coverage supports it. HHI measures concentration, not common control.

Perform fresh TCP service identification against a public IP address or hostname and port. Returns protocol, detected service, software product, version and CPE information where observable.

Full reliability report on one x402 service from our own availability monitoring (~2 probes/day per host): daily probe series over 30 days (probes, ok, avg/max latency), uptime 7d/30d, all observed change events (up/down transitions, payTo drift, price drift, manifest appearing/disappearing) and the payment details as last observed in the service's own 402 responses. Returns 400 host_not_monitored (no charge) when we have no history for the host. Facts only — no scores.

One complete crypto opportunity by signal_id (from /crypto/scan): classification, opportunity_score (0-100 heuristic, not a win probability), entry zone, stop-loss, take-profit, reward:risk, positive and negative factors, conditions and invalidation conditions, execution economics (net maker/taker), ML horizon scores with evidence status, entry validity versus expected hold, and upstream execution metadata. Market intelligence only: no execution, no custody, no position sizing. Paid per request.

single-fact naics lookup. Complete for the bundled 2022 vintage: all 2129 NAICS 2022 codes at levels 2 through 6, titles verbatim from the Census workbook, with the three range-spelled sectors (31-33, 44-45, 48-49) expanded to one entry per member sector. NAICS is a closed set, so a well-formed code absent from this snapshot is absent from the 2022 vintage. Refresh is a redeploy, never a live fetch.

Smallest paid pack ($0.005): a machine-readable merge checklist and a one-request smoke purchase on this store. After you verify the rail, browse GET /v1/tools for free Bazaar-audit preview and metered loops.

Solana (SOL-USD) spot price, delayed, via Yahoo Finance

Every PC game currently free to KEEP (claim once, own permanently) across Steam, Epic Games Store, GOG and itch.io. Each entry verified against that store's own API before publication. Per-store status distinguishes "verified: nothing is free" from "could not check", so a zero is a fact rather than an absence of data. Self-verifying: the version field is a SHA-256 of the payload's own content.

Spot token prices from DefiLlama — pass comma-separated CoinGecko ids, get price/change_24h/symbol/confidence/timestamp.

Stock quote — Delayed quote & key stats for an equity/ETF/index.

Structural diff of two JSON documents — add/remove/change operations with JSON-Pointer paths, before/after values, and an identical flag. Compare API responses and configs.

Computed sold-price summary for a UK postcode (count, min/max/median/avg price, date range, property-type breakdown), derived from HM Land Registry Price Paid Data

Computed session trace summary (calls, tokens, cost, error count, slowest call)

Sunrise / sunset — Sunrise, sunset, solar noon, day length by coordinate.

Test and debug a regular expression against up to 50 sample strings — real match results, capture groups, named groups, and pass/fail against expectations. Deterministic regex testing.

Third-party existence attestation: submit a sha256 hash (or a payload to hash) and receive an Ed25519-signed receipt binding the hash to an issuance timestamp. Verify any receipt for free at /verify; signing public key published at /.

Timezone by coordinate — Coordinates → IANA timezone, UTC offset, local time.

ERC-20 token balance of a Base mainnet address, incl. symbol, decimals, balance_formatted.

Is this crypto-asset or its issuer MiCA-notified in the EU? Searches the official ESMA interim MiCA register token lists — e-money token (EMT) issuers, asset-referenced token (ART) issuers, and notified crypto-asset white papers — by issuer name, LEI, or Digital Token Identifier (DTI). Returns issuer, home member state, competent authority, DTIs and the official white-paper URL per match. Useful before trusting a stablecoin or token sold as EU-regulated.

Token security / honeypot detector for a Base mainnet ERC-20: EIP-1967/1822 proxy + upgradeability detection, bytecode dispatcher scan for mint/pause/blacklist/fee-setter/ownership selectors, owner() renouncement check, and a live eth_call state-override simulation testing whether a synthetic wallet can actually transfer() the token. Returns risk_score (0-100) + verdict (clear/review/block) + human-readable flags.

Issue a signed, scoped access token (JWT) for an org member

Issue a signed, scoped access token (JWT) for an org member

Top 5 Vietnam travel destinations — curated static list with descriptions, highlights, and best time to visit

Top DeFi lending/LP yields — project, chain, symbol, pool id, APY breakdown + 1d/7d/30d APY trend, IL risk (incl. il7d), exposure, reward/underlying tokens, outlier flag, mu/sigma, DefiLlama stability forecast, TVL. Filter by project, chain, or stablecoin-only; sort by TVL (default) or risk-adjusted APY (apy/sigma).

Measured track record of the strategies behind /crypto/verdict, resold from the upstream signal system. Give a window in days (default 30, clamped 1..365); returns per strategy the number of trades, wins, win rate and average net return over that window, with the measurement start. A factual measurement over a short window (wide error bars), not investment advice. Cheap showcase for the paid verdict endpoint.

Transaction receipt by hash on Base mainnet: status, gas used, full logs, L1 fee breakdown, l1_fee_usd/total_fee_usd.

Transaction details by hash on Base mainnet.

Translate a cron expression into plain English (e.g. "Every 15 minutes, weekdays") — the companion to /cron/next.

Services whose inbound USDC transfer count and inflow are growing across comparable daily windows. The response states how many calendar days of history actually back the comparison. Use this to spot rising demand early. Growth is measured on observed on-chain transfers, not on self-reported revenue.

URL to clean JSON for AI agents. Fetches any public web page server-side and returns title, meta description, canonical URL, a heading outline, and boilerplate-stripped plain text — navigation, sidebars, cookie banners and footers removed. Saves an agent from running its own fetch + HTML-parsing + readability stack. Flat $0.01 per call, no account, no API key, no rate limit.

Unit conversion — Convert between units (length, mass, volume, speed, area, data, time, pressure, energy, temperature, angle).

Unmet-demand finder: compares observed USDC spend against how many sellers actually serve each category, with recent momentum where a real prior window exists. The payer-quality component is applied only when wallet scan coverage supports it. Use this to decide what to build — categories with high spend and few suppliers are the gaps.

US 30-Year Treasury Bond yield (%), delayed, via Yahoo Finance

Current USD/KRW exchange rate (ECB reference via Frankfurter, fallback open.er-api.com).

VN Holiday API — official Vietnam public holiday lookup

Is this crypto opportunity still valid right now? Give a signal_id and receive its live status (ACTIVE/STALE/INVALIDATED), remaining entry window in seconds, current price versus the entry zone, spread, data quality, maker/taker economics recomputed at the current price, whether the upstream execution blockers changed, and any invalidation reasons. Freshness first: an expired entry is reported as expired. Advice only: no execution, no custody, no position sizing. Paid per request.

Validate JSON data against a JSON Schema (draft-07, 2019-09, 2020-12) — returns exact error locations, keywords, and messages for programmatic handling. Deterministic schema validation.

Validate identifiers by checksum: IBAN (mod-97), card numbers (Luhn), EAN-13, ISBN-10/13, UUID (RFC-4122), ULID. Batch up to 100 per call with per-item reasons.

VanEck Vietnam ETF (NYSE: VNM) — USD-denominated foreign investor exposure to the Vietnam market, delayed quote

EU VAT number validation (VIES) with predictable behavior for agents. Validates any EU VAT number against the European Commission's VIES service. Two modes: fast validation (may serve a cached result, labeled with its timestamp) and consultation-proof mode (always live, returns the official consultation number, requires requester identification). 'Not confirmed' does not imply the company is invalid. Machine-readable errors with per-member-state availability status.

Generates an AGENTS.md for a public GitHub repository — the file coding agents read on task start. Contains build/test commands quoted from the repository's own manifests with the source file named, a directory map, entry points, and edit boundaries. Every path is checked against the git tree; ambiguous areas are marked 'unverified' rather than guessed. Returns markdown.

Deterministic analysis of a public GitHub repository. Returns layout, language breakdown, toolchain commands with their source manifest, test and CI presence, a 0-100 documentation-health score, and phantom_paths (file paths the README cites that do not exist). No language model is used, so results are reproducible for a given commit.

Verify whether a public listing page currently supports a buyer-supplied availability, price, and location claim.

Verify whether a cited source supports an exact factual claim

Vietnam financial news headlines — latest titles and links via CafeF/CafeBiz/VnEconomy RSS fallback chain, headline+link only, no article content

Vietnam residential electricity tariff — 6-tier progressive schedule per EVN Decision 1279/QĐ-BCT, VND per kWh before VAT

VIN decode — Decode a US-market Vehicle Identification Number.

VN-Index — Vietnam stock market index (HOSE), delayed quote

VN individual stock quote — pass ?symbol=VIC (Vingroup), VNM (Vinamilk), VCB (Vietcombank), etc. HOSE-listed blue-chips, delayed quote

VN Market Prices API — USD/VND rate and gold prices (SJC, DOJI)

Vietnam residential water tariff structure (HCMC/SAWACO and Hanoi/HAWACO) — tier structure and official lookup channels, no VND figures (source data inconsistent, see notes)

VN30 proxy — VFMVN30 ETF tracking Vietnam's top 30 HOSE blue-chip stocks, delayed quote

Wallet bundle: ETH balance + balance_usd + tx count + contract-code check (EIP-7702 delegated-EOA aware) for a Base mainnet address, in one call.

File what you want to buy from an agent-facing API and cannot buy today. Optional kind is typically one of coin, country, vies_country, monitor_host, sms_service — free-form values possible. The $0.01 fee is there to keep intents honest, not to sell you anything: it is not a purchase of the capability and no promise that it gets built. Optionally add the price per call you would pay and your expected monthly volume. Free alternative: POST /agent/request.

Weather forecast — Current conditions + multi-day forecast by coordinate or place.

Deterministic bounded HTML structure extraction for a public URL.

Who actually owns a counterparty. Resolves a company to its Legal Entity Identifier and walks the GLEIF ownership graph — direct parent, ultimate parent and direct children — returning the group structure with the jurisdictions it spans. This is the entity-resolution step under every KYC, sanctions and diligence workflow: free lookups answer the name, almost nothing answers the group. Search by name and country, then resolve by LEI.

Wikipedia summary — Lead summary/extract for a Wikipedia page.

Same KOL confluence feed as kol_signals_live with every row at least 45 minutes old — the evaluation tier

Optimizer status and recent parameter decisions

Memecoin froth gauge, current level plus full history: human buys/hour, danger share, distribution events, percentile

Narrated detector event stream: meta-signals, distribution flips, known-rugger callouts (last 2000 events)

Seven research panels in one call: family correlation + effective-n, edge calibration, insider event study, regime joins, econ calendar, weekly digest, daily alpha cards

Current signal feed headlines from the lab's signal bus

Forward-marked signal outcomes WITH a matched control arm: rug rates, checkpoint returns (15m/1h/6h/24h) by risk level and confluence — honesty-graded

Parsed SEC Form-4 insider buys, newest first: roles, titles, shares, price, value, disclosure lag (last 1000)

Per-wallet outcome statistics for ~300 tracked memecoin KOL wallets — our computed win rates and PnL distributions over observed trades

Launch-snipe paper ledger with a randomized control arm: detect latency, entry efficiency, checkpoint marks per snipe

Fleet-wide daily P&L ledger: totals, venue splits, per-day rows, tape reconciliation — the transparency companion to alpha_track

Pump.fun deployer index built forward by our launch listener: 900+ creator wallets with launch histories, venue-aware rug counts, first/last seen

10b5-1 plan detection per insider filing — was the buy pre-scheduled? Per-accession tags plus aggregate plan rates

Exposure crowding: where the fleet's directional risk is concentrated

Cross-venue probability divergences (e.g. Kalshi vs Polymarket gaps)

Parsed House/Senate PTR trades: member, ticker, type, amounts, filing lag (last 1000)

Cross-source evidence clusters joining price anomalies to specific SEC filings (Form 4 accessions, URLs) — graded, windowed, cited

Recent lab alerts (drawdowns, retirements, anomalies)

Daily equity/PnL histories for the lab's edge-protected bots under stable anonymous handles — real performance, withheld identities; track any handle across snapshots

Recorded Kalshi SOL-market L2 depth (top-5 levels per side), previous-day and older only (T+1) — we recorded it live; Kalshi publishes no historical depth

Copy-gradeability verdicts for Solana memecoin wallets: composite scores, consistency, retirement calls (candidate lists withheld)

Forecast calibration by venue/category — predicted vs realized

13F institutional holdings rollup: top-held names, filer roster, per-ticker holder counts (top 300)

Live KOL confluence buy/exit signals (≤15 min old): distinct human buyers, strength, rug-risk callouts, momentum — the actionable tier

single-fact lei lookup. Answers from a bundled CC0 subset of GLEIF Level 1 data, vintage 2026-08-15: 20000 ACTIVE, ISSUED records cut in ascending LEI order from a 1953582-record pool. The range is not dense, so a valid LEI can sort inside it and still be absent; absence here is absence from THIS snapshot, never from the Global LEI System. An unknown or malformed LEI is refused by name, never guessed. The full bound is stated free in the discovery declaration on this challenge.

single-fact naics lookup. Complete for the bundled 2022 vintage: all 2129 NAICS 2022 codes at levels 2 through 6, titles verbatim from the Census workbook, with the three range-spelled sectors (31-33, 44-45, 48-49) expanded to one entry per member sector. NAICS is a closed set, so a well-formed code absent from this snapshot is absent from the 2022 vintage. Refresh is a redeploy, never a live fetch.