Every agent-payable API.

Audit any x402 endpoint before you pay it: reads the live HTTP 402 challenge, decodes the payment terms, and compares the price advertised in its openapi.json against the price actually charged. Returns a compliance verdict, a safe-to-pay signal and a per-check fix list. Catches silent price drift, unpayable challenges, and the misconfigurations that make discovery indexes drop a resource.

Audit CORS response headers for wildcard, credential, and cache-variance risks. Use it before an autonomous workflow acts on untrusted input, changes an API, retries a request, or evaluates production reliability. Returns bounded machine-readable JSON for $0.002 USDC via x402 on Base. Execution is deterministic, first-party, local-only, stateless, and does not call an upstream provider; structured validation failures are not billed.

Audit JWT claim names, expiry, and identifiers at an explicit reference time without returning claim values. Use it as a bounded preflight or analysis step inside an enterprise agent workflow before data, policy, integration, security, or commercial decisions reach production. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, memory-only, and has no paid upstream or input retention. Results are advisory; the caller rem…

Audit a Content-Security-Policy for missing defaults and unsafe script directives. Use it before an autonomous workflow acts on untrusted input, changes an API, retries a request, or evaluates production reliability. Returns bounded machine-readable JSON for $0.002 USDC via x402 on Base. Execution is deterministic, first-party, local-only, stateless, and does not call an upstream provider; structured validation failures are not billed.

Audit a Set-Cookie value for Secure, HttpOnly, and SameSite controls. Use it as a bounded preflight or analysis step inside an enterprise agent workflow before data, policy, integration, security, or commercial decisions reach production. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, memory-only, and has no paid upstream or input retention. Results are advisory; the caller remains responsible for authorization and…

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.

Audit a selected agent offer against rejected affordable alternatives with counterfactual savings, regret, and a tamper-evident receipt.

Audit cache headers for missing policy and sensitive public-cache exposure. Use it before an autonomous workflow acts on untrusted input, changes an API, retries a request, or evaluates production reliability. Returns bounded machine-readable JSON for $0.002 USDC via x402 on Base. Execution is deterministic, first-party, local-only, stateless, and does not call an upstream provider; structured validation failures are not billed.

Audit npm or Python dependencies. Checks each package against registry for latest version, deprecation, vulnerabilities. Verifiable against actual registries.

Audit password policy for length, breached-secret checks, and MFA. Use it as a bounded preflight or analysis step inside an enterprise agent workflow before data, policy, integration, security, or commercial decisions reach production. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, memory-only, and has no paid upstream or input retention. Results are advisory; the caller remains responsible for authorization and pro…

Aurelius Node 01: Real-time Texas Regional Corridor ground-truth oracle (DFW, Permian, Gulf Coast, Central TX). Provides 46-item supply matrix: structural steel, industrial copper/aluminum, OCTG casing, oilfield supply, piping, aggregates, concrete & green energy infrastructure. Includes EIA fuel rack benchmarks & spot hotshot freight rates. Returns JSON schema with stock levels, lat/lng, lead times, hazmat status, & instant $0.05 USDC settlement via Base x402 V2.

Find the email address of a blog post author from the article URL.

Authorization Scheme Identify: Authorization Scheme Identify identifies an Authorization scheme without exposing or validating credentials from bounded caller-supplied values without an external provider. Call Authorization Scheme Identify before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for Authorization Scheme Identify as versioned deterministic JSON. Price: $0.001…

Auto-loan payment including state sales tax (verified 2026 rates), trade-in credit, down payment, and fees.

US safety recalls for a VIN, deterministic. Answers "does this car have open recalls", "is this used car safe to buy", "what NHTSA campaigns cover this vehicle". Decodes the VIN via NHTSA vPIC (year, make, model, body, engine) then lists every NHTSA recall campaign for that vehicle: component, summary, remedy, park-outside and do-not-drive flags. No LLM, no key, public domain.

Autocomplete a partial UK postcode into a list of full postcode suggestions.

Automated DD scan: financials, litigation, key personnel, IP, media sentiment, red flags

Automated safety checks for a Base token: honeypot simulation, buy and sell tax, contract verification, owner privileges, holder concentration, whether anyone can still pull the liquidity, and who deployed the contract - a token shipped from a wallet with a handful of transactions is the shape most rugs share

Solana token risk score + entry confidence signal (ENTER_NOW/WAIT/AVOID/EXIT) + Jupiter liquidity depth ($100/$1K/$10K price impact) + deployer wallet freshness check + brand impersonation detection + per-source latency breakdown.

Score a website's visibility to AI search and answer engines with crawler access, llms.txt, structured entity, answerability, freshness, and prioritized remediation checks.

Generate an avatar image from a name or initials with customizable styling.

Average of a numeric list. Call when you need a mean for agent metrics samples. Returns average and count for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

[3-LEG] Aviation ground-stop chain, one airport (?entity=ewr): leading aviation weather - METAR ceiling, visibility, convection and gusts -> current FAA NAS ground stops and delay programs -> realized realized delay (confirmation gate). A sequential chain, not one reading - confidence = how many legs are lit, in order. Sources: FAA NAS Status, NWS METAR. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.

Korean government procurement award results (who won which contract, at what amount), cursor-based delta.

A股龙头行情聚合 — A股10只龙头一体化行情：茅台/平安/比亚迪/招商/宁德/中国平安/隆基/五粮液/恒瑞/海康威视实时报价。

Enrich a company by name, website, LinkedIn URL, or company_id. Returns full profile with description, industries, NAICS, locations, posts, funding. 1 credit per match.

Search companies by name, industry, NAICS code, keywords, location, employee count. 1 credit per company returned.

BDI derived indicators (trend, momentum, volatility, regime)

BNB/B402 payment-intent preflight: validate intent freshness and recipient, query public BNB balance and recent activity, and return a signed decision without custody or payment relay

Decode Brazilian boleto payment slips (linha digitável): bank, amount, due date, validity check. Supports bank collection and utility/tax formats.

Batch-validate Brazilian identifiers: CPF, CNPJ (incl. new alphanumeric format), PIS, license plates, Pix keys. Up to 100 per call.

Search Brazilian public procurement tenders (PNCP) by keyword. Returns normalized tender references (CNPJ/year/sequential, control number, PNCP URL) ready for detail lookups.

Paste a product URL from ANY store; the API identifies the product and returns the same or equivalent item CHEAPER across Mercado Livre, Shopee and AliExpress. Each candidate carries a `match_confidence` (no cross-marketplace barcode exists, so a match is never claimed identical) and a landed-price estimate (import tax included for international offers, labeled). Our marketplaces resolve by API; other stores via a page read that falls back to the URL text.

Search Brazilian marketplaces from a PRODUCT PHOTO. Send an image (multipart upload or URL); a vision model reads the brand, model and attributes off it, and the resulting query runs across Mercado Livre, Shopee and AliExpress. Returns the same normalized offers as /v1/search, plus `interpreted_query` — the exact text that was searched, so a misread photo is visible. Pass `rerank=true` to drop accessories and same-word-different-product offers (+~400ms).

BTC-USD spot price, delayed quote via Yahoo Finance

Backlink profile of a domain: summary metrics plus top 25 referring domains

Central government debt balance by category (JGBs total, of which General Bonds; FILP bonds; Borrowings; Financing Bills; grand Total; separately Government-Guaranteed Debt) from the Ministry of Finance, quarter-end, 5-year trend. Factual published data only; not investment advice.

Balance for an eth, sol, or peaq address

Barker's cross-chain route availability for a stablecoin from a given chain (bridge/venue coverage). Use for 'bridge USDC from arbitrum', '跨链路径'.

Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols. Returns ranked rows with protocol_name, chain_name, asset_symbol, supply_apy_total (decimal — multiply by 100 for %), and supply_tvl (USD). Use for questions like 'best stablecoin yield', 'where to earn on USDC', 'compare lending rates', '稳定币利率'.

Per-pool APY/TVL time series (default 30d, APY percent unit) for trend and volatility analysis of one pool_uid. Use for 'is this pool's APY stable', '这个池子收益稳不稳'.

Fuzzy search pools by keyword (protocol name / pool name / asset). Resolves natural-language pool references to pool_uid for the detail/history tools.

Base address -> agent-ready on-chain profile: EOA or contract, ETH and major-token holdings, token or NFT metadata, EIP-1967 proxy detection, activity, and a derived profile label. Uses public Base mainnet RPC with no account or API key. Useful before an agent sends funds, swaps, or calls a contract.

Base address snapshot: ETH balance, tx count, contract or EOA

Live Base mainnet ETH and USDC balances for an address — treasury and agent wallet checks

Base Block Time Estimate: Base Block Time Estimate estimates block count from a caller-supplied duration and block-time assumption from bounded caller-supplied values without an external provider. Call Base Block Time Estimate before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for Base Block Time Estimate as versioned determi…

Base Confirmation Eta: Base Confirmation Eta estimates remaining confirmation time from caller-supplied block cadence from bounded caller-supplied values without an external provider. Call Base Confirmation Eta before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for Base Confirmation Eta as versioned deterministic JSON. Price:…

Base Fee Budget Breakdown: Base Fee Budget Breakdown breaks a Base transaction fee ceiling into gas, priority, and total values from bounded caller-supplied values without an external provider. Call Base Fee Budget Breakdown before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for Base Fee Budget Breakdown as versioned determin…

Base Gas Price Staleness: Base Gas Price Staleness checks the age of a caller-supplied gas quote before use from bounded caller-supplied values without an external provider. Call Base Gas Price Staleness before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for Base Gas Price Staleness as versioned deterministic JSON. Price: $0.…

Base Payment Deadline Check: Base Payment Deadline Check checks a Base payment deadline against minimum and maximum lead time from bounded caller-supplied values without an external provider. Call Base Payment Deadline Check before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for Base Payment Deadline Check as versioned determ…