Hash text with sha256 (default), sha512, sha1 or md5 and get hex plus base64 in one call. Handy for agents that must fingerprint prompts, files or payloads without a local crypto library.

Gas price: live gas fees for Ethereum, Base, Arbitrum, Polygon and Solana in one call. Use before sending a transaction to pick a fee or the cheapest chain. Returns base fee, slow/standard/fast priority fees, max fee, congestion, and the USD cost of a transfer, an ERC-20 transfer and a swap per chain, plus Solana priority fees. Optional chain. 0.001 USDC/call; failed calls are free.

Sanctions/scam screening verdict for one address (?address=, optional ?network=mainnet|testnet) plus whether it is a verified token contract STB recognises. The same screen that gates every send in the STB wallet.

Unified company lookup by exact identifier: one call, one normalized schema across French SIREN (recherche-entreprises Sirene/RNE), EU VAT (VIES validation), and global LEI (GLEIF). Returns legal name, status, address, activity code, officers, and full provenance (source, retrieval time, license). No per-register API-key signup — pay once, get consistent company data for e-invoicing, procurement, and compliance. Input: id + id_type (siren | vat | lei).

Base mainnet network info in one call: chain ID, block height, and current gas price (wei and gwei).

Real-time crypto token spot prices for AI agents and trading bots. Returns USD price, token symbol, and DefiLlama price confidence per coin. Query by DefiLlama coin key (coingecko:ethereum) or common ticker (btc, eth, sol, usdc, usdt) — batch up to 50 coins in one call. Keyless, unified schema, stablecoin-payable.

Recent blocks, newest first. PulseChain (chain id 369). $0.003 USDC per call.

Staging x402 purchase of 10 PriorSeal Agent Credits

Business-day and public-holiday API for US federal and GB bank holidays.

E2E test route: French communes by postal code (public API geo.api.gouv.fr). Sold by Resolve402 (merchant of record), data from Test geo (E2E). Settled only on success.

Search the Agent Paywire library of Lightning, L402, x402, and stablecoin sources, plus related articles. Optional words (q), category, status, since date, and limit. One request is 0.01 USDC. The files on https://agentpaywire.com stay free.

SEO and AEO website audit. Returns an audit ID and status URL while processing, then a report URL when completed. Check status approximately every 30 seconds.

Address screening for crypto wallets: sanctions screening and AML screening of up to 25 addresses per call, each with a risk verdict and evidence.

Prepaid credits for the sanctions and AML pre-payment decision: 100 calls to /api/x402/decision for one settlement, valid 365 days.

Sanctions screening, AML screening and payee screening before an AI agent pays: OFAC and other sanctions lists, mixers, scam and hack lists, on-chain risk. Returns a crypto compliance decision (allow / review / decline) with verifiable evidence and a signed receipt. Prepaid credits are cheaper: see POST /api/x402/credits.

Produce a source-backed research brief for an agent task using current web and authoritative sources: send a topic or question and get a brief with the sources and citations it relies on.

Travel research from current sourced web information (hotels, flights, itineraries, city weekends). Booking and availability are not claimed.

Find the cheapest suitable API or software service for an agent task (for example PDF text extraction, web scraping, search, weather, email validation). Returns one recommendation plus alternatives with real prices.

Signed time-bounded witness of an agent-carried payload digest; the payload stays with the agent

Fund tracing for AML and source of funds: follow crypto funds upstream over multiple hops to see whether they touched sanctioned, hacked or scam sources.