Official DPE energy certificates for existing French dwellings from the ADEME dpe03existant dataset (Licence Ouverte 2.0, anonymised). Returns energy class A-G, GHG class, primary-energy consumption kWh/m2/yr, floor area, construction period. Query: ?postal_code=75011 or ?address=48 rue de Montreuil Paris, optional &size=10 (max 50). Spots F/G rental-ban units for real-estate due diligence. Cached 24h.

Security audit of one exact dependency version, backed by OSV.dev (Google), which aggregates public advisories (GHSA, PyPA, RustSec...) in near real time. Query: ?pkg=lodash&ecosystem=npm&version=4.17.20 (ecosystems: npm, pypi, go, crates.io, maven, nuget, rubygems, packagist, hex, pub). Returns vuln_count, max_severity, advisory ids and the versions that fix them; vuln_count=0 means clean. Cached 1h.

Korean exchange prices (Upbit, Bithumb) for a single token in KRW

Your own purchase history, keyed to the wallet that pays for the call - no wallet parameter, no signup: the x402 payment IS the identity, so nobody can read another wallet's profile. Returns totals, per-tool counts, per-chain breakdown, recent receipts with settle tx hashes (independently verifiable on-chain), and this wallet's refunds: any payment that settled for a call that failed to deliver, with its status and our refund transaction once sent.

Key financial metrics (Revenue, Net Income, Operating Income, Total Assets, Liabilities, Equity, EPS, Operating Cash Flow) for a US public company in one call. Returns the latest annual and quarterly values from SEC XBRL filings. No XBRL knowledge needed - just pass a ticker.

Current USD/KRW exchange rate (ECB reference via Frankfurter, fallback open.er-api.com).

Agent profile lookup. Returns trust score, component breakdown, feedback counts, and metadata for any ERC-8004 agent.

Company name search across jurisdictions. jurisdiction=lei searches the global GLEIF LEI database (all countries); jurisdiction=jp searches the official Japan National Tax Agency corporate registry. Returns registered legal names, identifiers, and addresses. KYB / counterparty verification primitive.

The OpenAI Responses wire priced from the request itself: each 402 quotes this exact body, from $0.001, and upto buyers settle actual usage under it. Use it when an agent built on the Responses API or the OpenAI Agents SDK wants per-call payment sized to what it sends.

Real-time crypto VWAP market data from Blocksize Capital.

Everything about a cryptocurrency in one call: live price, 90-day history, trending status, global market context, news search, and top article extraction. Crypto dossier skill pack: one x402 payment runs 6 underlying tools (crypto-price, crypto-history, crypto-trending, crypto-global, search, extract); partial-success per step.

Password - CASA Cybersecurity Assessment - Consolidates evidence on secure communications, including certificate validity, hostname matching, protocol and cipher strength, forward secrecy, and TLS vulnerabilities. It determines whether the service uses a secure, authentic, and correctly configured transport channel.

News Gurus Intel API — US equity + crypto market regime now: TRENDING, MEAN_REVERTING or VOL_EXPANSION with confidence. Example: {regime: TRENDING, confidence: 0.74, reason: 'ADX 31 + VIX compression', vix_spot: 14.2, adx: 31}. Derived by a 40-source trading bot, refreshed intraday. Cheapest first call on this API and the standard 'trend day or chop day' check before sizing any trade. Educational data, not financial advice.

Comprehensive company research report in one call: latest close, financials, SEC filings, insider trades, and recent news - all in parallel. Company dossier skill pack: one x402 payment runs 5 underlying tools (stock-quote, company-financials, edgar-filings, edgar-insider-trades, search); partial-success per step.

Real-time Bitcoin price in USD, a median across 10 exchanges including Binance, Coinbase, Kraken and Bullish — Ed25519 signed attestation

Check whether a crypto address appears on the official public sanctions lists (OFAC SDN, UK, EU, UN). Deterministic exact lookup; returns the matched record (list, program, entity name, reference, currency).

Get Address Counterparties Data

Graph schema definition — entry point for agents to discover available data

Full domain security and SEO intelligence in one call: WHOIS, DNS, TLS cert, HTTP headers, tech stack, robots policy, and certificate transparency. Domain intel skill pack: one x402 payment runs 6 underlying tools (whois, dns-lookup, tls-cert, http-headers, tech-stack, robots-check); partial-success per step.

Label a known EVM address from a curated, committed dataset: major stablecoin + token contracts (the USDC and USDG contracts of every EVM chain we settle on, USDC on Ethereum, USDT, DAI, WETH, WBTC), DEX routers (Uniswap, 1inch, 0x), canonical L1↔L2 bridges, large exchange hot/cold wallets, and burn/system addresses. Deterministic and offline - the provenance field states the dataset revision. Unknown addresses return {found:false}, not an error.