Every agent-payable API.

x402 client conformance — basic. Pay to certify your agent can complete a real x402 payment; get a public certificate + README badge.

x402 payment E2E test endpoint (echoes query). Factual data only; not investment advice.

X/Twitter thread (5-7 posts) for an ICS actor or CVE. Pass ?actor=XENOTIME or ?cve=CVE-XXXX-XXXX. Fans out to actor or cve. Returns thread array: hook post, intel posts with ATT&CK IDs and affected OT systems, mitigation post, hashtag post. Each post under 280 characters.

Get the status and transactions of a specific action by its ID (returned by actions_enter/exit/manage). Poll this to track an action from CREATED → SUCCESS/FAILED.

Discover DeFi yield opportunities across 80+ networks — 3,300+ staking, lending, vault, and RWA yields from Lido, Aave, Morpho, and more. Filter by token, network, yield type, or provider and sort by APY or TVL. Returns yield IDs (needed by every other tool) with APY, TVL, lock-up/cooldown periods, and KYC gating. Start here.

Historical APY / reward-rate for a yield over time — plot APY trends or compute average yield across 1d/7d/30d/90d/1y windows.

List validators for delegation-based yields (Cosmos, Polkadot, ETH native staking, etc.). Use a validator address with actions_enter/actions_exit. Filter to curated validators with preferred=true, or by name/status/address/provider.

Get the risk profile for a yield — ratings and scores from independent risk providers (Credora, Staking Rewards) so agents and users can weigh safety before depositing.

List every protocol/provider behind Yield.xyz yields — Lido, Aave, Morpho, validator operators, RWA issuers, and more — with names and identifiers. Use a providerId to filter yields_get_all.

Get live DeFi yield balances and pending actions for any wallet — active staking, lending, vault, and RWA positions with accrued rewards, USD values, current APY, and claimable actions. Covers 3,300+ yields (Lido, Aave, Morpho, tokenized treasuries) across 80+ networks. Call before actions_exit or actions_manage.

Get full metadata for a single DeFi yield: current APY, TVL, fees, minimum/maximum entry, lock-up/cooldown/warm-up periods, reward mechanics, supported tokens, and whether entry/exit is currently open. Show this before a user commits to a position.

Build unsigned transactions to exit a DeFi yield position — unstake, withdraw from lending or vaults, or redeem RWAs — across 80+ networks. Supports instant and queued/cooldown redemption per protocol. Does NOT execute: the caller signs and broadcasts each tx. Check positions with yields_get_balances first.

List past and pending actions for a wallet across all yields — filter by status, intent, type, yield, or network. Answers "what are my pending actions?" and finds actions awaiting a next step.

Historical total-value-locked (TVL) for a yield over time — track inflows/outflows and protocol growth across 1d/7d/30d/90d/1y windows.

Yields — an agent-callable yields service, payable over x402 (USDC on Base). Provided via eltociear-tokenguard.hf.space. Priced around 0.01 USD per call.

Top APY yield pools by token symbol and chain, with risk flags (DefiLlama). Body: { symbol?, chain?, limit?, safeOnly? }.

Full transcript of a YouTube video from its URL — captions/subtitles as clean plain text in your language. YouTube transcript, video to text, captions extraction, subtitle download, speech to text, multilingual. 105 languages supported, including English, Spanish, Portuguese, French, German, Hindi, Arabic, Chinese, Japanese, Korean, Russian, Indonesian and Vietnamese. Pay per call, no account or API key.

AI summary of a YouTube video from its URL — a concise TLDR of what the video says, translated into your language. YouTube video summary, summarize video, video summarizer, video to text summary, multilingual. 105 languages supported, including English, Spanish, Portuguese, French, German, Hindi, Arabic, Chinese, Japanese, Korean, Russian, Indonesian and Vietnamese. Pay per call, no account or API key.

Top Nostr notes and authors by sat-zap velocity over a rolling window. Surfaces real-money sentiment — who the BTC/Nostr economy is literally paying to amplify. Fundamentally different signal from reposts/likes: zaps cost sats. Query ?window=15m|1h|6h|24h &scope=notes|authors &limit=N.

Address-to-zoning lookup for published municipalities. Coverage: 64 municipalities in 6 states. Resolves a street address to supported municipality and, where GIS is verified, zoning district_code with lookup method. Positioning: Records tell you what's on file; ZoningVerdict tells you what the ordinance actually says, independently verified, with the citation. Responses include source citations and last-reviewed dates. Price: $0.01/call.

Web-content reader: fetch any http(s) URL and return clean readable text, title/description/canonical, and outbound links as JSON — the data an agent ingests on each step of a crawl or RAG loop. Input: url.

CDP Bazaar market radar for x402 builders — catalog size, keyword ranks, AgentToll visibility, vertical competition, price samples, and next actions

Buyer-keyword rank audit for one x402 resource: Bazaar position, competitors above it, metadata defects, and next fixes

Search SEC EDGAR filings by company, form type, or ticker — filing URLs, dates, descriptions, and public filing metadata

Live Polymarket-versus-Kalshi cross-platform spread scan

Federal contract-fit brief: scored incumbents, buyer agencies, award amounts, and pursuit notes for one service niche

US crop production, yield, acreage and grain stocks from USDA NASS QuickStats by commodity, with an optional state and year. Returns a normalized cited series plus the year-over-year change.

Empirical floor profiles of 10x and 100x stocks at day one — valuation, size, quality, growth and base-rate minimums across the major studies, fully cited. Also /profiles/10x-floor. $0.05 each.

Verify an attestation produced by /notarize (either the EIP-712 or the EAS off-chain form) — pure compute, no network and no keys. Recovers the signer and reports whether it matches this service's attestor, whether the EAS UID recomputes, and (if you supply the original body as payload_base64) whether its sha256 matches the attested hash.

X Tweet Search ($0.005/call): Search X (Twitter) posts with full advanced-search syntax (from:, since:, until:, exact phrases, boolean operators). Returns up to 20 posts per call as clean JSON with metrics and entities, plus a cursor for the next page. No X account or API key needed.

Market Intel & Signals ($0.006/call): Deep snapshot and execution microstructure for one Polymarket market: implied probability, best bid/ask/spread, 24h volume, liquidity depth, days to resolution, momentum, and estimated slippage to buy at $100 and $1000 order sizes from the live order book. Pass a slug, or omit it for the highest-volume open market right now. Signals are factual market data, not investment advice.

List the known public data breaches that affected a domain, from the Have I Been Pwned breach catalogue. Returns normalized breach metadata (name, date, account count, data classes, stealer-log and verified flags) plus a summary. This is which known breaches touched the domain, not whether a specific account is compromised. Breach indicators, not a guarantee.

Which x402 endpoints on Base are broken RIGHT NOW (down or misconfigured — not returning a valid 402). A real share of listed endpoints are dead; call this before routing a paid request so your agent never pays into a broken endpoint. No args = full broken list; ?domains=a.com,b.com = watch your dependencies; ?since=<unix> = incremental. Free-probe measurement, objective, machine-readable.

ABI-encode a function call (selector + args) or encode/decode arbitrary ABI types — build and parse EVM calldata correctly.

Convert token units (wei/gwei/ether or arbitrary decimals), between hex and int, and compute/validate an EIP-55 checksummed address.

Compute keccak256/sha256, a 4-byte function selector, an event topic0, or an ENS namehash/labelhash from a string or hex input.

Aggregated crypto news with sentiment: deduplicated headlines from many major crypto outlets (CoinDesk, Cointelegraph, Decrypt, Bitcoin Magazine, The Block, CryptoSlate), each scored bullish/bearish/neutral by a crypto-tuned lexicon, optionally filtered by coin or query. One call instead of polling a dozen feeds and running your own NLP.

Composite crypto market sentiment: the Fear & Greed index (value, classification, trend) blended with aggregated news-headline sentiment into one bullish/bearish/neutral score, optionally focused on a coin or query. Data by alternative.me (attributed) + curated RSS headlines.

Pure-compute data format conversion (no network): JSON<->CSV, JSON<->YAML, JSON normalize/minify, Markdown->HTML (sanitized), HTML->Markdown/text, base64/hex, TOML->JSON. Operates only on the supplied data.

Top GitHub repositories by language and/or topic (optionally newer than a date), ranked by stars/forks/recently-updated: name, full_name, stars, language, description, url, pushed_at. From the official GitHub Search API.

Hacker News engagement / dev-sentiment for a project or topic: story count, total & average points and comments, and the top stories (title/url/points/comments/date). From the keyless HN Algolia search API.

Adverse-event summary for a medical-device brand from the FDA MAUDE database. Returns counts of malfunctions, injuries and deaths by event type. Informational, not medical advice.

One call, every category: pulls everything matching a topic across all aggregated sources and groups it by category (news, legal, academic, dev community, ...) with counts -- replaces manually calling /tools/search once per category and merging results yourself. Structured aggregation, not an AI-generated summary.

Phishing/trust verdict for a website domain before an agent transacts with an unfamiliar merchant. Fuses registration age (RDAP), DNS/mail posture (SPF, DMARC, DNSSEC), TLS validity, Certificate Transparency history and a typosquat/homoglyph analysis into a composite trust score 0-100, a category (trusted / caution / untrusted / unknown), per-dimension flags and reasons. Trust indicators, not a guarantee.

Adverse-event summary for a drug from the FDA FAERS database by name. Returns the top reported reactions, the serious and death-flagged fractions and a demographic breakdown as aggregate counts. Informational, not medical advice.

Drug-interactions label section for a drug by name, with an optional check of whether the label mentions a second drug. A label-text heuristic, informational, not medical advice.

Key FDA structured-product-label sections for a drug by name: boxed warning, indications, dosing, contraindications, warnings, drug interactions and pregnancy. Informational, not medical advice.

Preflight trust check of another x402 endpoint before an agent pays it. From the target resource URL: a composite trust score 0-100, a category (trusted / caution / untrusted / unknown), per-dimension flags, reasons and weighted signals. Scored from CDP x402 Bazaar discovery, an on-chain USDC payment-diversity sample, and a live 402 probe that the served payTo matches the listing. Trust indicators, not a guarantee.

US petroleum prices and stocks from the EIA: retail gasoline and diesel by PADD region (weekly), WTI and Brent crude spot (daily), and weekly crude/gasoline/distillate inventories. Returns latest value, change vs prior period, short history, and a region-vs-US spread.

Enrich a domain / company / email into one aggregated profile from public sources: registration (RDAP/WHOIS age, registrar, expiry, nameservers), DNS (A/AAAA/MX/NS, SPF, DMARC), TLS certificate (issuer, validity, expiry), homepage metadata (title, description, Open Graph, JSON-LD Organization, social links, role contacts) and a tech-stack detection. Each block is null-on-failure (partial, never 500). Business/domain data only — no personal data of individuals.