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[PerCall] COMPUTED — not raw data. Cross-pair momentum score (-100 to +100) with regime label for the top 10 USDT pairs, computed from 7 days of hourly closes. Includes 24h/7d rate-of-change, realised volatility, and a composite ranking. Designed for pre-trade agent checks.

Decode a NIP-19 Nostr identifier (npub/note/nprofile/nevent/naddr) to hex, relays, author, kind. GET ?s=<bech32>

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Repairs malformed LLM JSON: strips Markdown fences and prose wrappers, fixes trailing commas, converts Python literals (True/False/None) and single/unquoted keys, removes comments, recovers balanced JSON from truncated output. Body {input} -> {ok, repaired, applied}.

Live cryptocurrency spot price in USD from Coinbase primary spot API (e.g. ?symbol=BTC-USD, ETH-USD, SOL-USD).

Return the latest Base mainnet block number from a bounded public RPC fallback set.

Real-time on-chain payment verification and check via Base RPC. Returns structured signals: verified status, amount, sender, recipient, transaction confirmation, block number. Pay $0.005 USDC per check. Covers payment, transaction, address, contract, score, signals.

Sanctions screen for one crypto address, for agents and apps that send payments: exact match against all 1050 digital currency addresses in the official US Treasury OFAC SDN list (EVM case-insensitive). Returns sanctioned true/false, matching SDN entity, programs and list date, a chain guess and checksum validity, plus the list date. Informational, not legal advice.

Verify a Russian company or sole trader by INN - official EGRUL state registry (Проверка российского юрлица по ИНН, ЕГРЮЛ)

Recommended Bitcoin transaction fee-rates in sat per vByte across five confirmation horizons (fastest, half hour, hour, economy, minimum) plus a live mempool congestion snapshot with an estimated block backlog. Informational, not advice.

Basic data feed - 1 request

Pay-per-call cited research brief. The request carries a query and 1 to 12 quotes with source URLs; the response is a short brief that cites only those quotes, at 0.008 USDC per call on Base. Payment settles after the brief is produced. A client nonce header makes a retry free of a second charge.

Use when an agent must decide whether an address or x402 service has actually received USDC from anyone other than its operator - before paying it, listing it, or trusting a claim about it. Returns third-party total, distinct senders, first/last seen, block height. Scope: Base + USDC.

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green alien

Return a USD spot-price consensus for BTC, ETH, SOL, or USDC using fixed public CoinGecko, Coinbase, and Kraken routes.

Shopify and Google Merchant Center / Google Shopping product-feed audit for 1-100 catalog records. Detect feed errors, duplicate IDs, invalid GTIN/UPC/EAN checksums, malformed URLs and prices, availability issues, and brand/MPN identifier inconsistencies before feed submission.

Audit one x402 seller origin and paid route using public Circle runtime-readiness plus Agent402 routing/settlement evidence. Returns machine_buyable, contract_ready, or repair_required with exact next actions. No target payment is sent.

Fetch a public web page and return its title, description, clean Markdown (scripts, styles, nav chrome removed) and the list of links. No model call, deterministic.

Same as the free /v1/extract but without the 30 requests per day limit: fetch one public static HTML or JSON page and return structured data (text, attr, list, table, price, events, page, links, json) as JSON, CSV or ICS. Honours robots.txt. No JavaScript rendering. Failed calls (4xx/5xx) are not settled.

Extract text from a digital PDF into page-numbered JSON with SHA-256 hashes. No account or API key. 0.005 USDC on Base per successful document via x402. Maximum 2 MiB and 25 pages. No OCR, summaries, URL fetching, or verification of document claims.

Bulk extract domains from page: up to 20 urls in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.

Fetch one public web page now and return clean markdown (or plain text) of the main content plus title, description, author, published time, canonical, language and sha256. Charged only on success.

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Deterministic npm package evidence: registry facts, distribution integrity, provenance, and factual flags for coding agents.

Find and rank Pennsylvania legal-entity candidates when an agent needs to identify which registered business matches a submitted company name.

Free TELAGO Korea geocode discovery preview for AI agents. Shows the paid $0.001 Korea address geocode endpoint and building-enrichment capabilities without an API key.

Ping del servizio: restituisce stato servizio, timestamp e identificatore. Endpoint di prova del primo micro-servizio x402.

Get holder count and top holders for a token with concentration metrics (HHI)

Orbitwren: Orbital data centers and space AI compute tracker: every orbital data center project (company, hardware, launch, status, sources), launches, orbits, changes and alerts.