x402 Data API

64 pay-per-call intel lanes for AI agents on Base + Solana via x402 (USDC). Screens not audits: contract/honeypot/rug/approval checks, token intel, markets, bounties, DeFi, plus signed receipts with a public durability spec. No account, no API key — pay the 402 toll per call, from $0.02.

Extract a public website’s likely logo URLs, brand colors, and font families as structured JSON with evidence and confidence. $0.001 USDC per successful result on Base via x402.

Machine-payable agent services on x402 (USDC on Base): the Governance family — the Bureau (audit, receipt-check, reputation) and the Governor (reserve, settle) — plus Verification Bureau utilities, Agent Trust (reputation, trusted routing), Data utilities (invoice OCR, PII redact, document convert/translate/extract, schema cleanup, code-review brief), Security (threat-model, dependency-risk, authorized red-team), Evidence (receipts, forensics, C2PA verify, signed snapshot), and agent infrastructure (judge, uptime canary, memory). Every result is Ed25519-signed and re-checkable free; a buyer can verify before paying.

Paid API returning a global supply chain stress report: dry bulk and container shipping rates, BLS producer price indexes, the NY Fed GSCPI, a 0-10 stress score and a short AI written summary.

Email finder and verifier API, paywalled per-call with x402 (USDC on Solana).

Is this vendor down? Pay-per-call current status and recent incidents for 1,700+ SaaS and cloud vendors, read live from PulseWatch, $0.01 per call in USDC on Base over x402 with no API key. Also a remote MCP server at /mcp.

Paid market-data API for AI agents (x402, USDC on Base): cross-venue perpetual funding rates (OKX, Kraken Futures, dYdX) with a ready-to-use arbitrage spread signal, outlier-cleaned DeFi yields from DefiLlama, and a low-cost BTC/ETH/SOL market snapshot with Fear & Greed index. Clean JSON, exact scheme, from $0.002 per request. OpenAPI at /openapi.json.

Five pay-per-call services for agents: machine-economy changes since a cursor with provenance; flat-field data compatibility checks; WCAG colour-pair contrast calculation; Product JSON-LD/Offer evidence extraction from supplied HTML; and merchant service contract regression reports. Structured outputs over x402 v2 exact USDC on Base. No URL fetching by the supplied-data utilities.

Six x402 GETs on Base USDC. Spot FX $0.01: one ECB reference conversion (informational only, not for transaction use; same rates free at https://www.ecb.europa.eu; not sold or endorsed by the ECB). One Sense $0.02: first Wiktionary sense (CC BY-SA 4.0 and GFDL). Debt to the Penny $0.01 from U.S. Treasury Fiscal Data; not an official Treasury product. Recent Quake $0.01; credit U.S. Geological Survey; not an official USGS product. One Entity $0.01: one Wikidata item; structured data is CC0; free at https://www.wikidata.org. Ticket $0.01: binds a Base USDC transfer to this shop's price table; does not settle a new payment; not a refund; not proof the SKU body was delivered. Unpaid GET returns HTTP 402. PayTo 0x6cd6B2a3a8926CE9B6F58CB6369C1AF4cB54c1D7.

Crypto research and market intelligence for traders, investors and AI agents. Is a token's hype real or bot-driven? Which whale wallets are accumulating, and which are moving onto exchanges to sell? Which altcoins have social momentum before the price moves? Is it overvalued on its fundamentals? Social sentiment and volume across X/Twitter, Reddit, Farcaster and Bluesky for 2,300+ coins; whale transfers and exchange inflow/outflow against 80,000+ labelled addresses; Galaxy Score and AltRank; bot and coordinated-pump detection; influencer accuracy tracking; full fundamental analysis including FDV, protocol revenue, TVL, DAO treasury, unlock schedules and exploit history. 104 payable endpoints plus a hosted MCP server with 66 read-only tools. Read-only: no endpoint can move funds.

Pay-per-call API for UK property data by postcode: Land Registry sold prices, rental yield estimates, stamp duty, EPC ratings, crime statistics, flood risk, planning applications and council tax. Priced at $0.001 per call in USDC on Base.

Cryptographically secure RNG (CSPRNG with rejection sampling). Random ints, UUIDs, dice, coin flips, weighted samples.

JavaScript-rendered pages and upstream x402 toll pass-through: url2md drives a headless browser when a page needs one, and when the page itself charges an x402 toll it quotes toll + 25%, settles your payment first, then pays the origin from its own wallet (cap $0.05 per toll). Returns clean Markdown for static HTML, browser-rendered pages and PDFs through one conversion engine. robots.txt honoured per RFC 9309. $0.005 per call in USDC on Base, no account and no API key.

Paid x402 API from x402scan returning its ecosystem datasets: merchants, resources, buyers, facilitators and origin registry, priced per call in USDC on Base.

US electricity grid data for 7 regions: demand, generation mix by source (renewable, gas, nuclear) and grid stress signals, sourced from EIA-930.

Single GET endpoint that follows an HTTP redirect chain using HEAD requests only, returning every hop (URL and status), the final URL, a redirect count and advisory warnings such as redirect loops or https to http downgrades. JSON output. Operated by x402 Atlas.

Pay-per-call API with more than 500 endpoints on a single host: exchange rates, crypto and stock prices, on-chain and DeFi data, commodities, text and web utilities. x402 payment in USDC on Base and Solana, full catalog at /openapi.json.

Compliance and company data APIs for AI agents: OFAC sanctions screening, LEI (GLEIF) and SEC EDGAR company facts, WHOIS/RDAP and domain email-auth checks, a combined merchant check, ECB currency conversion, business days and US product recalls. Pay per call with x402 in USDC on Base or XRP on the XRP Ledger; no account or API key; every paid response carries an Ed25519-signed receipt.

Institutional crypto market intelligence — AI chat trained on 30TB+ data covering 40,000+ assets. USDC on Base or Solana.

Market where AI agents sell what they measured: knowledge units (benchmarks, failure post-mortems, working parameters) reviewed against their evidence, and versioned, signed datasets. Each paid read is one x402 payment in USDC; search, listings and free reads need no payment or key. Remote MCP server at https://witan.markets/mcp, OpenAPI at https://witan.markets/openapi.json, Python and JS SDKs. Public beta on Base Sepolia (test USDC).

MIDAX402 is an AI market-intelligence service for autonomous agents. Each paid request returns a structured market analysis with an explicit verdict and confidence score, generated by a dual-LLM engine that reports its synthesis status honestly. Four tiers from $0.03 to $0.15 USDC per call, payable natively over x402 on Base.

Two domain-history lookups sold by the call: Deathwatch returns a domain's registry RDAP record — expiry date, days left, EPP status codes, registrar, name servers — and Afterlife returns a web address's first and last Wayback Machine capture with the span between. 0.01 USDC per call on Base, settled through PayAI's public facilitator; no API key, no account. Operated by Sundial, an AI with no memory between sessions that keeps a public diary at asundial.com; a human principal holds the receiving address.

Pay-per-call cryptocurrency market data (quotes, listings, metadata) via x402 micropayments.

Keyless pay-per-call API for AI agents: 316 endpoints across 95+ groups. Patents & trademarks (USPTO), legal (CourtListener), government & economy (SEC EDGAR, Census, World Bank, Federal Register), finance/markets, science & medicine (arXiv, PubMed, ICD-10, drug data), vehicles & aviation (NHTSA), geo & weather (OpenStreetMap, NWS/NOAA, USGS), business registries (GLEIF LEI), sanctions screening (OFAC), cybersecurity (CVE/KEV/EPSS), and web/data utilities. No signup, no API key: pay per request in USDC on Base or Solana via x402. Machine-readable OpenAPI, llms.txt, JSON-LD, and MCP server card.

Vehicle Intelligence for AI agents. Pay per call with x402 (USDC on Base) to decode any 17-char VIN with factory warranty terms ($0.01), read merged US (NHTSA) + Canada (Transport Canada) recalls ($0.01), get LLM-clustered known-issue reports with reliability aggregates ($0.05), and itemized used-car closing costs for all of Canada + 50 US states ($0.02). Free /v1/sample/* endpoints return every response shape. Informational data only — not a vehicle-history report.