API Marketplace
220 settlement-verified APIs of 236 live, 2798 endpoints in total. AI agents discover via MCP and pay per request in USDC on Base. Like the browsable grid, this list shows settlement-verified listings only. Selected verified listings:
- x402 Market Index (P0): 257 endpoints. Ranked index of paid x402 services: 30-day calls, paying wallets and prices, rebuilt from the Coinbase x402 Bazaar feed. Every response carries a receipt naming the snapshot.. $0.02-$25 per request.
- ForgeMesh Labs: 317 endpoints. Deterministic daily book pick from the indexed corpus, date-seeded so every caller gets the same answer on the same day. Optional date override for backfill. Returns book_id and dr. $0.001-$0.02 per request.
- Demand Hash API: 8 endpoints. SHA-256 and related cryptographic hash meters for AI agents. Pay-per-call USDC on Base and Solana via x402. Deterministic digests, no keys.. $0.001-$0.01 per request.
- Demand OFAC SDN API: 6 endpoints. OFAC SDN sanctions name screening for AI agents. Fuzzy match against public SDN list including aliases. Directional only, not clearance. x402 dual-rail Base+Solana.. $0.01 per request.
- code402 Deterministic Verification Rail: 71 endpoints. Deterministic business-identifier checks (IBAN, LEI, VAT, SWIFT, 60+ more) with XDR-1 signed receipts. x402 paid per call, USDC on Base.. $0.005-$0.05 per request.
- DELTA Witness: 1 endpoints. Preflight an autonomous action before taking it: fetches a public URL, compares the live observation against deterministic expectations you supply, and returns a safe/unsafe verdic. $0.03 per request.
- zFinia Accessibility Contrast Calculator: 1 endpoints. Calculate WCAG 2.x sRGB contrast for one caller-supplied colour pair; no interface-wide accessibility claim is made. POST {"foreground":"#000000","background":"#ffffff","large_text. $0.001 per request.
- PennyAPI Local Business & Places Search: 1 endpoints. Real-time local business and places search for AI agents. Find restaurants, stores, services, and nearby businesses with structured addresses, coordinates, ratings, phone numbers, . $0.004 per request.
- Cognilode Agent Security Scorer: 1 endpoints. Deterministic security scoring for an agent configuration together with a block of untrusted content. POST /api/x402/agent-security-score returns a risk score and level, located fi. $0.02 per request.
- Free Asset Radar x402 Tools: 5 endpoints. Low-cost x402 tools for agents: decode and inspect payloads, hashing, Base64, live Base wallet token balances, and USDC transfer verification.. $0.001-$0.002 per request.
- Web Search & Data API — SERP, page reader & scrapers: 43 endpoints. Pay-per-call web search and web data for AI agents: multi-engine SERP, search-and-read, URL-to-markdown scraping, Google Trends, WHOIS/DNS, enrichment, SEC filings, geocoding and a. $0.005-$0.15 per request.
- Agent402.Tools: 1 endpoints. Pay-per-call tools for agents. Prices and catalog size come from https://agent402.tools/api/pricing and can change.. $0.001-$3.3 per request.
- Kronos by ForgeMesh: 22 endpoints. Kronos crypto market intelligence for autonomous agents: hourly signal scores, calibrated price ranges, risk state, decision journals, and outcome audits. Paid per call in USDC on . $0.005-$0.25 per request.
- NexusEval Marketing Preflight: 1 endpoints. x402-paid pre-publish marketing QA gate for AI agents, returning structured quality and risk flags before content goes live.. $0.01 per request.
- SEC Form 13F Institutional & Hedge Fund Holdings API: 2 endpoints. Search official SEC EDGAR Form 13F-HR and 13F-HR/A filings by investment manager name or CIK, filing date, report quarter, issuer, CUSIP, value, shares, put/call, discretion, and a. $0.01 per request.
- SEC EDGAR Filings Public Company Evidence API: 1 endpoints. SEC EDGAR company and filing lookup for investor due diligence, financial research, and 10-K/10-Q discovery. $0.010 per request.
- Email Verification API: 4 endpoints. SMTP check, disposable-domain filter, catch-all detection, role-account heuristics. $0.001 per request.
- QR Code API: 4 endpoints. QR generation, decoding, styling, batch. $0.001 per request.
Live listings that we have not paid for yet are not hidden, only unselected by default: browse every live listing, verified and not.