Market benchmark for an x402 category: supply (endpoints, sellers), demand (30-day payers, calls, estimated revenue), price quartiles for all and proven sellers, top sellers.

Standardized financials from SEC XBRL for the last 5 fiscal years and 4 quarters: revenue, operating and net income, diluted EPS, assets, liabilities, equity, cash, long-term debt, operating cash flow, capex, free cash flow and margins.

Grade a web page A-F on HTTP security headers (HSTS, CSP, framing, nosniff, Referrer-Policy, Permissions-Policy, cookie flags, version leakage, http->https redirect) with the value and a concrete fix per check.

Simulated market order on five spot venues for a USD amount: average fill, slippage in bps vs mid, worst price, fully filled or not, best venue, plus bid/ask depth in USD within 0.5%, 1% and 2% of mid.

Carry view of one currency pair: both policy rates with central bank and last change, differential in pp, which side earns the carry, current official FX rate with date and source.

Which API should I call? Describe a task in plain words and get the 1-5 best x402 APIs for it, one per seller, with evidence: 30-day unique payers, repeat calls per payer, last call, scanner traffic excluded, a live unpaid check that each pick answers 402 right now (with its live price and latency), the input example the seller declared, reason codes and risk flags, plus a cheaper proven alternative. Covers the whole CDP x402 Bazaar.

Fuzzy-screen a name against OFAC SDN, UN, EU, UK, Swiss SECO, World Bank debarment and US BIS/State/Treasury non-SDN lists (optional lists= filter): matches with list, id, primary name, matched alias, score, type, programs, countries, dates of birth, listing date and reference, plus the date each list was checked.

Full government yield curve for US, EA (euro area AAA) or MA (Morocco): tenor -> yield %, as-of date, source, change in bp vs 1 month and 1 year ago.

One Polymarket or Kalshi market in detail: implied probabilities, last price, best bid/ask, spread, volume, open interest, 1-day price change and hourly price history for the last 24 h.

All CDP Bazaar listings of one host: endpoint count, summed 30-day payers and calls, estimated 30-day revenue, top 20 endpoints with price and payers, distinct payTo addresses, and which x402 discovery docs the origin serves.

Current gas on one EVM chain: base fee and slow/standard/fast priority fee in gwei, and USD cost of a native transfer, an ERC-20 transfer and a Uniswap swap including the L1 data fee on rollups.

Check a crypto address (BTC, ETH/EVM, TRON, USDT, XMR, LTC...) for an exact match with OFAC SDN digital currency addresses; returns the designated entity, currency and programs.

Crypto headlines of the last 72 h matching keywords or tickers (all words must match; tickers and asset names like ETH/ethereum map to tags), newest first, with corroboration count.

Top crypto stories of the last N hours, deduplicated across 13 outlets and ranked by number of distinct outlets reporting them, then recency: headline, outlets, links, firstSeen, asset/theme tags.

Detects the technologies of a website homepage (CMS, e-commerce, frameworks, web server, CDN/hosting, analytics, tag managers, ad pixels, payments, chat, consent, security headers, fonts) with category, version when visible, evidence and confidence.

Open interest of a coin's perpetual per venue (Binance, Bybit, OKX, Hyperliquid) in contracts and USD with market share, 24h change where history exists (Binance, Bybit), and the Binance long/short account ratio.

Government yield at any tenor (e.g. 18M, 7Y, 12Y) for US, EA or MA, linearly interpolated between published points, with 1-month and 1-year-ago values.

All current FAA delay programs nationwide (ground stops, ground delay programs, airspace flow programs, arrival/departure delays, closures) sorted by severity, with reason, delay minutes and times.

Timestamp a SHA-256 hash: returns a stored, server-signed receipt (id, hash, label, timestamp, signer, message, signature, verify URL) proving the hash was presented at that time.

One DeFi pool by DefiLlama id: current APY split, TVL, risk flags and its daily APY and TVL history for the last 30 days with min/max/avg.