Explore APIs

Read a public static HTTPS webpage as clean text with headings, links, timestamp and content hash. Use to ground an answer or ingest documentation. Respects robots.txt; no JavaScript or login.

US federal regulations in the pipeline — documents on public inspection at the Federal Register, filed by agencies and scheduled to publish, with type, agencies, filing time and the scheduled date. Use to see tomorrow's rules, notices and executive orders before they are published.

Text Moderation language: Language identification (ISO 639-1 code, name, confidence) for one text or a batch of up to 50, with a script-based fallback.

Price of ONE token: on-chain USD spot price for a single ERC-20 on Base, from the deepest Uniswap v3 pool vs USDC/WETH (slot0), with the pool/fee tier used and its USD depth. No off-chain feed; thin pools are easy to manipulate. To price MANY tokens at once, use multi-token-price instead (one cheaper call).

Official FX rate — one African pair. Official forex reference rate vs USD for one African currency: KES (Kenyan shilling), NGN (naira), GHS (cedi), TZS, UGX, ZAR, EGP, RWF, via Frankfurter (frankfurter.dev). Frankfurter blends published central-bank reference rates; the number is that blend, not a single central-bank fixing. Each response names the source and carries as_of (Frankfurter's rate date

About page discovery repair plan fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.

Atomic technical indicators (RSI, EMA20/50/200, MACD, ATR, Bollinger, volume) for any Kraken */USD pair and timeframe. Cheap high-frequency poll endpoint for AI trading agents (USDC on Base). Free preview: GET /signals/preview Bad input (unknown pair) returns 400; upstream outage returns 503; you are never charged for an error.

What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement between sources stated.

Retrieve deterministic evidence from a public HTTPS page

Authorize an AI-agent payment under a predelegated spending policy before funds move. Verify that the merchant's exact x402 challenge, amount, payer, payee and HTTP request are within authority already delegated to the agent. No synchronous human approval is required when the predelegated policy permits the purchase. Includes signed authorization plus post-payment on-chain settlement verification

Cron job scheduler for AI agents: calls your HTTPS endpoint on a cron expression (recurring webhook, scheduled callback, heartbeat, reminder). ENTRY pack: 20 deliveries for $0.02 ($0.001/delivery). Same service, best rate $0.0005/delivery: https://402cron.com/buy/starter. Also 50000 for $25: https://402cron.com/buy/month. Credits never expire. Your endpoint must echo our challenge (no fixed-reply

Educational briefing on the latest cars in 2026 (powertrains, range, pricing, and what's new).

Look up an ERC-8004 AI agent identity on Base mainnet. Returns name, description, services, x402 support, and owner.

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.

MSHA mining fatalities feed, newest first, including OPEN preliminary notices (scraped 32–180 days ahead of the official dataset and flagged as preliminary). Filter by date, state, commodity.

Order up to 1000 supplied agent events in UTC, preserve undated events, remove identical retransmissions and reject conflicting event IDs. Evidence links are references only; chronology does not establish causality or clock accuracy.

Which x402 endpoint should I call? Describe the job in plain words; get the 3 best endpoints from different providers, each health-checked live just now, with its current price quote, its inputs and the reasons — ranked over the whole Coinbase Bazaar catalog by fit, real paying demand and health. Uncharged when nothing passes.

Node4All Fortune — deterministic fortune reading derived from the x402 payment authorization nonce. Flagship demo of the Node4All x402 v2 payment flow. Operator: Node4All (https://node4all.com). Currency: USDC on Base.

Due diligence on an ERC-8004 agent before you pay it or call it: live services and their health, metadata completeness, onchain feedback count and score, wallet activity, concrete red flags, and a usable/caution/avoid verdict with a 0-100 score. Call it when you must decide whether another agent is safe to transact with. Params: chain (default 8453) and agent_id (ERC-8004 token id).

MusicBrainz WS/2 lookup/search (keyless; User-Agent required; 1 req/s). entity + mbid OR query → trimmed JSON.

Compute the Moon's phase name, age in days since the last new moon and illuminated fraction (0..1) for a UTC date/time. Uses the mean synodic month (29.53 days).

Random fortune — fixed price; x402 exact or MPP one-shot

Canonical change monitor plan fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.

Inspect up to 200 IP addresses at 0.0005 USDC per address.

Author identity audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.

Rerank documents against a query with BGE Reranker Base (@cf/baai/bge-reranker-base). POST query plus documents[]; returns relevance scores for search and RAG pipelines.

List a country's holidays for a calendar year (optionally by state/region, language and type).

Fetch one public HTML page → Markdown. robots.txt + SSRF guard + 1 MB / 5 s caps (amp port). Refusals 400 charged:false; fetch failures 502.

Parse markdown: outline, frontmatter, tables, fences, links, lists. Optional polite URL fetch.

Check a public URL for meaningful changes and freshness.