x402watch

19,733 paid endpoints are listed. 18,910 answered a real 402 at the last check.

Every x402 endpoint on the Coinbase Bazaar and x402scan, probed unpaid every six hours. A listing tells you the price a seller wrote down. This tells you whether the endpoint is reachable, whether it charges what it declared, and how fast it answers. Ranked by an assay score out of 100.

Last check 2026-09-30 22:23 UTC · 19,733 probed

18,910 answering 402263 down434 rejecting126 no paywall2,380 price drift
  1. 22api.strale.io/x402/v2/us-company-dataLook up US company data from SEC EDGAR. Accepts CIK number, ticker symbol, or fuzzy company name. Returns company name, CIK, SIC code, state, filings summary.$0.054 Baserejecting1 payers0% up
  2. 22api.strale.io/x402/v2/cve-lookupLook up known vulnerabilities for a package+version via OSV API. Supports npm, PyPI, Maven, Go, Cargo, NuGet. Returns CVEs with severity and fix versions.$0.054 Baserejecting1 payers0% up
  3. 22api.strale.io/x402/v2/blog-post-outlineGenerate a structured blog post outline. Returns title options, sections with subsections and key points, estimated word count, SEO keywords. JSON, not prose.$0.216 Baserejecting1 payers0% up
  4. 22api.strale.io/x402/v2/api-mock-responseGenerate a realistic mock API response with proper headers, status codes, and schema-matching body data.$0.054 Baserejecting1 payers0% up
  5. 22api.strale.io/x402/v2/api-health-checkTest an API endpoint: send request, validate response status and schema. Integration testing as a service.$0.054 Baserejecting1 payers0% up
  6. 22api.strale.io/x402/v2/changelog-generateGenerate a user-facing changelog from git commits. Groups by type, writes human-readable descriptions. Supports Keep a Changelog, semantic, and bullet formats.$0.0324 Baserejecting1 payers0% up
  7. 22api.strale.io/x402/v2/classify-textClassify text into categories. Optionally provide custom categories. Returns primary category, confidence scores, topic keywords, and summary.$0.054 Baserejecting1 payers0% up
  8. 22api.strale.io/x402/v2/diff-jsonCompare two JSON objects and return structured diff. Shows added, removed, and changed fields with paths and values. Algorithmic.$0.0324 Baserejecting1 payers0% up
  9. 22api.strale.io/x402/v2/data-quality-checkCheck data quality with custom rules (email_format, range, pattern, etc.) or auto-detect issues. Returns quality score and field-level report. Algorithmic.$0.0216 Baserejecting1 payers0% up
  10. 22api.strale.io/x402/v2/deduplicateDeduplicate a JSON array of objects using fuzzy string matching (Levenshtein + token sort). Specify match fields and threshold.$0.0216 Baserejecting1 payers0% up
  11. 22api.strale.io/x402/v2/currency-convertConvert an amount between currencies using ECB exchange rates. Supports all major currencies. Returns converted amount and rate.$0.0216 Baserejecting1 payers0% up
  12. 19blockrun-staging-a7e8d12-143200-vbsbhh7lea-uc.a.run.app/api/v1/chat/completionsAI chat completions API - pay per request with USDC on Base$0.002 Baserejecting1 payers0% up
  13. 19blockrun-staging-7d5af1a-081745-vbsbhh7lea-uc.a.run.app/api/v1/chat/completionsAI chat completions API - pay per request with USDC on Base$0.002 Baserejecting1 payers0% up
  14. 19x402.professorsausages.com/domain-intel/dns/:domainMulti-record DNS summary (A/AAAA/CNAME/MX/NS/TXT/SOA/CAA + SPF/DMARC) over DoH — ALWAYS live$0.001 Baserejecting1 payers0% up
  15. 19x402.professorsausages.com/company/:idOrTicker/financialsAs-reported financial highlights from SEC XBRL — assets, liabilities, equity, revenues, net income, and cash for one company$0.005 Baserejecting1 payers0% up
  16. 19x402.professorsausages.com/domain-intel/domain/:domainRDAP registration card (dates, registrar, statuses, nameservers, DNSSEC) + derived flags + inline DNS summary — cached ≤24h$0.005 Baserejecting1 payers0% up
  17. 19x402.professorsausages.com/nft/:chain/wallet/:address/scam-exposureWallet scam exposure: verdict + per-holding evidence (spam flags, copymint collisions) — cached ≤24h$0.01 Baserejecting1 payers0% up
  18. 19x402.professorsausages.com/nft/:chain/wallet/:addressWallet NFT portfolio (first 100 items + honest truncation, spam flags, rollup) — cached ≤24h$0.01 Baserejecting1 payers0% up
  19. 19x402.professorsausages.com/ipo-calendar/company/:cikFull EDGAR offering timeline for one issuer — registration, amendments, EFFECT, 8-A12B and 424(b) with parsed terms$0.005 Baserejecting1 payers0% up
  20. 19x402.professorsausages.com/nft/:chain/collection/:address/scam-checkDeterministic scam checklist with verdict + evidence (spam flags, copymint collision, concentration) — cached ≤24h$0.01 Baserejecting1 payers0% up
  21. 19x402.professorsausages.com/gas-oracle/:chainCurrent gas market for one chain — bid-ready EIP-1559 fees + USD costs$0.001 Baserejecting1 payers0% up
  22. 19x402.professorsausages.com/sanctions-screen/entity/:idFull OFAC dossier for one ent_num: aliases, addresses, programs, extracted identifiers (DOB, passports, IMO, crypto addresses), vessel/aircraft detail, remarks$0.002 Baserejecting1 payers0% up
  23. 19x402.professorsausages.com/address-screen/check/:chain/:addressCrypto address screening vs the FULL live OFAC SDN list, segmented by chain (bitcoin, evm, tron, +9 more) — EVM adds on-chain signals (contract, fresh wallet) → 0-100 risk score$0.02 Baserejecting1 payers0% up
  24. 19x402.professorsausages.com/token-safety/check/:chain/:addressToken safety & rug-pull/honeypot risk check — scans an ERC-20's bytecode & ownership on Base/Ethereum for mint, blacklist, pause, fee traps$0.02 Baserejecting1 payers0% up
  25. 19api.particle.pro/v1/congress/votes/:id/positionsList vote positions. Returns individual member positions for a vote.$0.01 Baserejecting1 payers0% up
  26. 19api.particle.pro/v1/congress/members/:id/votesList member votes. Returns the voting record for this congress member.$0.01 Baserejecting1 payers0% up
  27. 19api.particle.pro/v1/congress/members/:id/billsList member bills. Returns bills sponsored or cosponsored by this congress member.$0.01 Baserejecting1 payers0% up
  28. 19api.particle.pro/v1/congress/committees/:id/billsList committee bills. Returns bills that have been referred to or acted upon by this committee.$0.01 Baserejecting1 payers0% up
  29. 19api.particle.pro/v1/congress/bills/:id/textList bill text versions. Returns all published text versions of a bill with links to PDF, XML, and HTML formats.$0.01 Baserejecting1 payers0% up
  30. 19api.particle.pro/v1/congress/bills/:id/sponsorsList bill sponsors. Returns the primary sponsor and all cosponsors of a bill with congress member details.$0.01 Baserejecting1 payers0% up
  31. 19api.particle.pro/v1/congress/bills/:id/actionsList bill actions. Returns a paginated list of legislative actions taken on a bill, ordered chronologically.$0.01 Baserejecting1 payers0% up
  32. 19x402.professorsausages.com/domain-intel/domain/:domain/liveDomain registration card — always fetched fresh$0.015 Baserejecting1 payers0% up
  33. 19x402.professorsausages.com/gas-oracle/:chain/blobEIP-4844 blob-gas market (Ethereum L1)$0.002 Baserejecting1 payers0% up
  34. 19api.oasistokenless.trade/mcpFilter JSON objects by exact field value without using an LLM.$0.01 Baserejecting0 payers0% up