x402watch

21,789 paid endpoints are listed. 20,776 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 2026-10-01 22:50 UTC · 21,789 probed

20,776 answering 402479 down406 rejecting128 no paywall2,402 price drift
  1. 100sovereign-x402-zeta.vercel.app/api/v1/sequence/catalanCalculate the nth Catalan number.$0.001 Base226 ms1 payers100% up
  2. 100archtools.dev/v1/tools/sentiment-analysisClassify text as positive, negative or neutral with scores and emotion detection. Instant NLP for reviews, support and social. Pay per call with USDC (x402) or credits - archtools.dev$0.015 Base240 ms1 payers100% up
  3. 100api.govparse.io/v1/pecos/provider-exodus/searchWhich medical groups are losing clinicians? Windows two CMS reassignment snapshots (individual→group affiliation): per group, clinicians (NPIs) affiliated in the prior snapshot but gone in the latest. Filter by state, specialty, org (group name), group_id, min_dropped, or a since baseline. Returns net churn per org + the dropped NPIs — the facility-losing-clinicians backfill tell. CMS public-domain records.$1.25 Base138 ms1 payers100% up
  4. 100phion.systems/v1/paid/journeys/verifyVerify a hash-linked agent commerce journey and issue a signed portable receipt$0.01 Base35 ms1 payers100% up
  5. 100phion.systems/v1/paid/transaction-recoveryClassify a failed agent transaction and produce a signed, machine-readable recovery claim and deterministic remedy plan$0.01 Base34 ms1 payers100% up
  6. 100api.signalfuse.co/v1/arena/ema_5_breakout/SOLIndividual arena strategy signal$0.001 Base48 ms1 payers100% up
  7. 100api.signalfuse.co/v1/arena/ema_5_breakout/DOGEIndividual arena strategy signal$0.001 Base76 ms1 payers100% up
  8. 100api.signalfuse.co/v1/arena/ema_5_breakout/ETHIndividual arena strategy signal$0.001 Base78 ms1 payers100% up
  9. 100signal-engine-production-d88d.up.railway.app/v1/arena/rsi_7_extremes/DOGEIndividual arena strategy signal$0.001 Base90 ms1 payers100% up
  10. 100signal-engine-production-d88d.up.railway.app/v1/arena/ema_5_breakout/DOGEIndividual arena strategy signal$0.001 Base51 ms1 payers100% up
  11. 100smx.space/smi-api/launch/2026-221Space Markets Index (SMI), published by Space Markets, Inc.: orbital launch activity from public data. Weekly 2026 launch series, per-launch records (rocket, mission, payloads, mass status) and SMI prints, as small JSON. Each read costs $0.01 test USDC via x402 on Base Sepolia (testnet). Data: GCAT (J. McDowell, planet4589.org), CC BY 4.0, modified by Space Markets. Not affiliated with or endorsed by SpaceX. Data only, not advice. Free: https://smx.space/smi-api/latest$0.01 Base Sepolia290 ms0 payers100% up
  12. 100market.datapackvibe.com/x402/web-research-papers-small-businessResearch paper search for Small business: Find public research papers and institutional summaries. Focus: small business. Uses live DuckDuckGo search results.$0.01 Base236 ms0 payers100% up
  13. 100market.datapackvibe.com/x402/demand-next-package-pypi-django-project-healthDjango Package metadata and health: Live PyPI package metadata and health for Django. Package name can be overridden.$0.01 Base201 ms–100% up
  14. 100market.datapackvibe.com/x402/demand-next-package-pypi-django-release-historyDjango Recent release history: Live PyPI recent release history for Django. Package name can be overridden.$0.01 Base208 ms–100% up
  15. 100market.datapackvibe.com/x402/demand-next-package-pypi-django-dependency-listDjango Declared dependencies: Live PyPI declared dependencies for Django. Package name can be overridden.$0.01 Base213 ms–100% up
  16. 100market.datapackvibe.com/x402/demand-next-package-pypi-django-release-summaryDjango Latest release summary: Live PyPI latest release summary for Django. Package name can be overridden.$0.01 Base205 ms–100% up
  17. 100market.datapackvibe.com/x402/demand-next-package-pypi-pydantic-source-linksPydantic Source and documentation links: Live PyPI source and documentation links for Pydantic. Package name can be overridden.$0.01 Base152 ms–100% up
  18. 100market.datapackvibe.com/x402/demand-next-package-pypi-pydantic-project-healthPydantic Package metadata and health: Live PyPI package metadata and health for Pydantic. Package name can be overridden.$0.01 Base154 ms–100% up
  19. 100market.datapackvibe.com/x402/demand-next-package-pypi-pydantic-release-historyPydantic Recent release history: Live PyPI recent release history for Pydantic. Package name can be overridden.$0.01 Base153 ms–100% up
  20. 100market.datapackvibe.com/x402/demand-next-package-pypi-pydantic-dependency-listPydantic Declared dependencies: Live PyPI declared dependencies for Pydantic. Package name can be overridden.$0.01 Base203 ms–100% up
  21. 100market.datapackvibe.com/x402/demand-next-package-pypi-pydantic-release-summaryPydantic Latest release summary: Live PyPI latest release summary for Pydantic. Package name can be overridden.$0.01 Base156 ms–100% up
  22. 100market.datapackvibe.com/x402/demand-next-package-pypi-fastapi-source-linksFastAPI Source and documentation links: Live PyPI source and documentation links for FastAPI. Package name can be overridden.$0.01 Base155 ms–100% up
  23. 100market.datapackvibe.com/x402/demand-next-package-pypi-fastapi-project-healthFastAPI Package metadata and health: Live PyPI package metadata and health for FastAPI. Package name can be overridden.$0.01 Base163 ms–100% up
  24. 100market.datapackvibe.com/x402/demand-next-package-pypi-fastapi-release-historyFastAPI Recent release history: Live PyPI recent release history for FastAPI. Package name can be overridden.$0.01 Base163 ms–100% up
  25. 100market.datapackvibe.com/x402/demand-next-package-pypi-fastapi-dependency-listFastAPI Declared dependencies: Live PyPI declared dependencies for FastAPI. Package name can be overridden.$0.01 Base169 ms–100% up
  26. 100market.datapackvibe.com/x402/demand-next-package-pypi-fastapi-release-summaryFastAPI Latest release summary: Live PyPI latest release summary for FastAPI. Package name can be overridden.$0.01 Base204 ms–100% up
  27. 100market.datapackvibe.com/x402/demand-next-package-pypi-requests-source-linksRequests Source and documentation links: Live PyPI source and documentation links for Requests. Package name can be overridden.$0.01 Base204 ms–100% up
  28. 100market.datapackvibe.com/x402/demand-next-package-pypi-requests-project-healthRequests Package metadata and health: Live PyPI package metadata and health for Requests. Package name can be overridden.$0.01 Base156 ms–100% up
  29. 100market.datapackvibe.com/x402/demand-next-package-pypi-requests-release-historyRequests Recent release history: Live PyPI recent release history for Requests. Package name can be overridden.$0.01 Base156 ms–100% up
  30. 100market.datapackvibe.com/x402/demand-next-package-pypi-requests-dependency-listRequests Declared dependencies: Live PyPI declared dependencies for Requests. Package name can be overridden.$0.01 Base154 ms–100% up
  31. 100market.datapackvibe.com/x402/demand-next-package-pypi-requests-release-summaryRequests Latest release summary: Live PyPI latest release summary for Requests. Package name can be overridden.$0.01 Base159 ms–100% up
  32. 100market.datapackvibe.com/x402/demand-next-package-npm-lodash-source-linksLodash Source and documentation links: Live npm Registry source and documentation links for Lodash. Package name can be overridden.$0.01 Base162 ms–100% up
  33. 100market.datapackvibe.com/x402/demand-next-package-npm-lodash-project-healthLodash Package metadata and health: Live npm Registry package metadata and health for Lodash. Package name can be overridden.$0.01 Base157 ms–100% up
  34. 100market.datapackvibe.com/x402/demand-next-package-npm-lodash-release-historyLodash Recent release history: Live npm Registry recent release history for Lodash. Package name can be overridden.$0.01 Base157 ms–100% up
  35. 100market.datapackvibe.com/x402/demand-next-package-npm-lodash-dependency-listLodash Declared dependencies: Live npm Registry declared dependencies for Lodash. Package name can be overridden.$0.01 Base163 ms–100% up
  36. 100market.datapackvibe.com/x402/demand-next-package-npm-lodash-release-summaryLodash Latest release summary: Live npm Registry latest release summary for Lodash. Package name can be overridden.$0.01 Base150 ms–100% up
  37. 100market.datapackvibe.com/x402/demand-next-package-npm-axios-source-linksAxios Source and documentation links: Live npm Registry source and documentation links for Axios. Package name can be overridden.$0.01 Base152 ms–100% up
  38. 100market.datapackvibe.com/x402/demand-next-package-npm-axios-project-healthAxios Package metadata and health: Live npm Registry package metadata and health for Axios. Package name can be overridden.$0.01 Base154 ms–100% up
  39. 100market.datapackvibe.com/x402/demand-next-package-npm-axios-release-historyAxios Recent release history: Live npm Registry recent release history for Axios. Package name can be overridden.$0.01 Base164 ms–100% up
  40. 100market.datapackvibe.com/x402/demand-next-package-npm-axios-dependency-listAxios Declared dependencies: Live npm Registry declared dependencies for Axios. Package name can be overridden.$0.01 Base161 ms–100% up
  41. 100market.datapackvibe.com/x402/demand-next-package-npm-axios-release-summaryAxios Latest release summary: Live npm Registry latest release summary for Axios. Package name can be overridden.$0.01 Base157 ms–100% up
  42. 100market.datapackvibe.com/x402/demand-next-package-npm-prisma-source-linksPrisma Source and documentation links: Live npm Registry source and documentation links for Prisma. Package name can be overridden.$0.01 Base158 ms–100% up
  43. 100market.datapackvibe.com/x402/demand-next-package-npm-prisma-project-healthPrisma Package metadata and health: Live npm Registry package metadata and health for Prisma. Package name can be overridden.$0.01 Base153 ms–100% up
  44. 100market.datapackvibe.com/x402/demand-next-package-npm-prisma-release-historyPrisma Recent release history: Live npm Registry recent release history for Prisma. Package name can be overridden.$0.01 Base161 ms–100% up
  45. 100market.datapackvibe.com/x402/demand-next-package-npm-prisma-dependency-listPrisma Declared dependencies: Live npm Registry declared dependencies for Prisma. Package name can be overridden.$0.01 Base153 ms–100% up
  46. 100market.datapackvibe.com/x402/demand-next-package-npm-prisma-release-summaryPrisma Latest release summary: Live npm Registry latest release summary for Prisma. Package name can be overridden.$0.01 Base154 ms–100% up
  47. 100market.datapackvibe.com/x402/demand-next-package-npm-eslint-source-linksESLint Source and documentation links: Live npm Registry source and documentation links for ESLint. Package name can be overridden.$0.01 Base152 ms–100% up
  48. 100market.datapackvibe.com/x402/demand-next-package-npm-eslint-project-healthESLint Package metadata and health: Live npm Registry package metadata and health for ESLint. Package name can be overridden.$0.01 Base155 ms–100% up
  49. 100market.datapackvibe.com/x402/demand-next-package-npm-eslint-release-historyESLint Recent release history: Live npm Registry recent release history for ESLint. Package name can be overridden.$0.01 Base155 ms–100% up
  50. 100market.datapackvibe.com/x402/demand-next-package-npm-eslint-dependency-listESLint Declared dependencies: Live npm Registry declared dependencies for ESLint. Package name can be overridden.$0.01 Base163 ms–100% up
  51. 100market.datapackvibe.com/x402/demand-next-package-npm-eslint-release-summaryESLint Latest release summary: Live npm Registry latest release summary for ESLint. Package name can be overridden.$0.01 Base162 ms–100% up
  52. 100market.datapackvibe.com/x402/demand-next-package-npm-vite-source-linksVite Source and documentation links: Live npm Registry source and documentation links for Vite. Package name can be overridden.$0.01 Base155 ms–100% up
  53. 100market.datapackvibe.com/x402/demand-next-package-npm-vite-project-healthVite Package metadata and health: Live npm Registry package metadata and health for Vite. Package name can be overridden.$0.01 Base151 ms–100% up
  54. 100market.datapackvibe.com/x402/demand-next-package-npm-vite-release-historyVite Recent release history: Live npm Registry recent release history for Vite. Package name can be overridden.$0.01 Base156 ms–100% up
  55. 100market.datapackvibe.com/x402/demand-next-package-npm-vite-dependency-listVite Declared dependencies: Live npm Registry declared dependencies for Vite. Package name can be overridden.$0.01 Base159 ms–100% up
  56. 100market.datapackvibe.com/x402/demand-next-package-npm-vite-release-summaryVite Latest release summary: Live npm Registry latest release summary for Vite. Package name can be overridden.$0.01 Base156 ms–100% up
  57. 100market.datapackvibe.com/x402/demand-next-package-npm-zod-source-linksZod Source and documentation links: Live npm Registry source and documentation links for Zod. Package name can be overridden.$0.01 Base151 ms–100% up
  58. 100market.datapackvibe.com/x402/demand-next-package-npm-zod-project-healthZod Package metadata and health: Live npm Registry package metadata and health for Zod. Package name can be overridden.$0.01 Base154 ms–100% up
  59. 100market.datapackvibe.com/x402/demand-next-package-npm-zod-release-historyZod Recent release history: Live npm Registry recent release history for Zod. Package name can be overridden.$0.01 Base148 ms–100% up
  60. 100market.datapackvibe.com/x402/demand-next-package-npm-zod-dependency-listZod Declared dependencies: Live npm Registry declared dependencies for Zod. Package name can be overridden.$0.01 Base155 ms–100% up
  61. 100market.datapackvibe.com/x402/demand-next-package-npm-zod-release-summaryZod Latest release summary: Live npm Registry latest release summary for Zod. Package name can be overridden.$0.01 Base162 ms–100% up
  62. 100market.datapackvibe.com/x402/demand-next-package-npm-typescript-source-linksTypeScript Source and documentation links: Live npm Registry source and documentation links for TypeScript. Package name can be overridden.$0.01 Base162 ms–100% up
  63. 100market.datapackvibe.com/x402/demand-next-package-npm-typescript-project-healthTypeScript Package metadata and health: Live npm Registry package metadata and health for TypeScript. Package name can be overridden.$0.01 Base161 ms–100% up
  64. 100market.datapackvibe.com/x402/demand-next-package-npm-typescript-release-historyTypeScript Recent release history: Live npm Registry recent release history for TypeScript. Package name can be overridden.$0.01 Base155 ms–100% up
  65. 100market.datapackvibe.com/x402/demand-next-package-npm-typescript-dependency-listTypeScript Declared dependencies: Live npm Registry declared dependencies for TypeScript. Package name can be overridden.$0.01 Base161 ms–100% up
  66. 100market.datapackvibe.com/x402/demand-next-package-npm-typescript-release-summaryTypeScript Latest release summary: Live npm Registry latest release summary for TypeScript. Package name can be overridden.$0.01 Base156 ms–100% up
  67. 100market.datapackvibe.com/x402/demand-next-package-npm-next-source-linksNext.js Source and documentation links: Live npm Registry source and documentation links for Next.js. Package name can be overridden.$0.01 Base160 ms–100% up
  68. 100market.datapackvibe.com/x402/demand-next-package-npm-next-project-healthNext.js Package metadata and health: Live npm Registry package metadata and health for Next.js. Package name can be overridden.$0.01 Base162 ms–100% up
  69. 100market.datapackvibe.com/x402/demand-next-package-npm-next-release-historyNext.js Recent release history: Live npm Registry recent release history for Next.js. Package name can be overridden.$0.01 Base198 ms–100% up
  70. 100market.datapackvibe.com/x402/demand-next-package-npm-next-dependency-listNext.js Declared dependencies: Live npm Registry declared dependencies for Next.js. Package name can be overridden.$0.01 Base152 ms–100% up
  71. 100market.datapackvibe.com/x402/demand-next-package-npm-next-release-summaryNext.js Latest release summary: Live npm Registry latest release summary for Next.js. Package name can be overridden.$0.01 Base153 ms–100% up
  72. 100market.datapackvibe.com/x402/demand-next-package-npm-react-source-linksReact Source and documentation links: Live npm Registry source and documentation links for React. Package name can be overridden.$0.01 Base153 ms–100% up
  73. 100market.datapackvibe.com/x402/demand-next-package-npm-react-project-healthReact Package metadata and health: Live npm Registry package metadata and health for React. Package name can be overridden.$0.01 Base161 ms–100% up
  74. 100market.datapackvibe.com/x402/demand-next-package-npm-react-release-historyReact Recent release history: Live npm Registry recent release history for React. Package name can be overridden.$0.01 Base199 ms–100% up
  75. 100market.datapackvibe.com/x402/demand-next-package-npm-react-dependency-listReact Declared dependencies: Live npm Registry declared dependencies for React. Package name can be overridden.$0.01 Base155 ms–100% up
  76. 100market.datapackvibe.com/x402/demand-next-package-npm-react-release-summaryReact Latest release summary: Live npm Registry latest release summary for React. Package name can be overridden.$0.01 Base194 ms–100% up
  77. 100market.datapackvibe.com/x402/demand-next-package-npm-express-source-linksExpress Source and documentation links: Live npm Registry source and documentation links for Express. Package name can be overridden.$0.01 Base153 ms–100% up
  78. 100market.datapackvibe.com/x402/demand-next-package-npm-express-project-healthExpress Package metadata and health: Live npm Registry package metadata and health for Express. Package name can be overridden.$0.01 Base159 ms–100% up
  79. 100market.datapackvibe.com/x402/demand-next-package-npm-express-release-historyExpress Recent release history: Live npm Registry recent release history for Express. Package name can be overridden.$0.01 Base149 ms–100% up
  80. 100market.datapackvibe.com/x402/demand-next-package-npm-express-dependency-listExpress Declared dependencies: Live npm Registry declared dependencies for Express. Package name can be overridden.$0.01 Base155 ms–100% up
  81. 100market.datapackvibe.com/x402/demand-next-package-npm-express-release-summaryExpress Latest release summary: Live npm Registry latest release summary for Express. Package name can be overridden.$0.01 Base155 ms–100% up
  82. 100market.datapackvibe.com/x402/demand-next-community-search-and-retrieval-productHacker News discussion search: search, retrieval, and RAG systems: Search public Hacker News stories for search, retrieval, and RAG systems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base157 ms–100% up
  83. 100market.datapackvibe.com/x402/demand-next-community-search-and-retrieval-researchersHacker News discussion search: search, retrieval, and RAG systems: Search public Hacker News stories for search, retrieval, and RAG systems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base156 ms–100% up
  84. 100market.datapackvibe.com/x402/demand-next-community-search-and-retrieval-foundersHacker News discussion search: search, retrieval, and RAG systems: Search public Hacker News stories for search, retrieval, and RAG systems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base181 ms–100% up
  85. 100market.datapackvibe.com/x402/demand-next-community-search-and-retrieval-operatorsHacker News discussion search: search, retrieval, and RAG systems: Search public Hacker News stories for search, retrieval, and RAG systems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base153 ms–100% up
  86. 100market.datapackvibe.com/x402/demand-next-community-search-and-retrieval-buildersHacker News discussion search: search, retrieval, and RAG systems: Search public Hacker News stories for search, retrieval, and RAG systems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base163 ms–100% up
  87. 100market.datapackvibe.com/x402/demand-next-community-hardware-platforms-productHacker News discussion search: developer hardware and edge computing: Search public Hacker News stories for developer hardware and edge computing. Returns story titles, links, scores, authors, and timestamps.$0.01 Base153 ms–100% up
  88. 100market.datapackvibe.com/x402/demand-next-community-hardware-platforms-researchersHacker News discussion search: developer hardware and edge computing: Search public Hacker News stories for developer hardware and edge computing. Returns story titles, links, scores, authors, and timestamps.$0.01 Base155 ms–100% up
  89. 100market.datapackvibe.com/x402/demand-next-community-hardware-platforms-foundersHacker News discussion search: developer hardware and edge computing: Search public Hacker News stories for developer hardware and edge computing. Returns story titles, links, scores, authors, and timestamps.$0.01 Base158 ms–100% up
  90. 100market.datapackvibe.com/x402/demand-next-community-hardware-platforms-operatorsHacker News discussion search: developer hardware and edge computing: Search public Hacker News stories for developer hardware and edge computing. Returns story titles, links, scores, authors, and timestamps.$0.01 Base147 ms–100% up
  91. 100market.datapackvibe.com/x402/demand-next-community-hardware-platforms-buildersHacker News discussion search: developer hardware and edge computing: Search public Hacker News stories for developer hardware and edge computing. Returns story titles, links, scores, authors, and timestamps.$0.01 Base155 ms–100% up
  92. 100market.datapackvibe.com/x402/demand-next-community-service-incidents-productHacker News discussion search: public service incidents and postmortems: Search public Hacker News stories for public service incidents and postmortems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base200 ms–100% up
  93. 100market.datapackvibe.com/x402/demand-next-community-service-incidents-researchersHacker News discussion search: public service incidents and postmortems: Search public Hacker News stories for public service incidents and postmortems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base156 ms–100% up
  94. 100market.datapackvibe.com/x402/demand-next-community-service-incidents-foundersHacker News discussion search: public service incidents and postmortems: Search public Hacker News stories for public service incidents and postmortems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base158 ms–100% up
  95. 100market.datapackvibe.com/x402/demand-next-community-service-incidents-operatorsHacker News discussion search: public service incidents and postmortems: Search public Hacker News stories for public service incidents and postmortems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base147 ms–100% up
  96. 100market.datapackvibe.com/x402/demand-next-community-service-incidents-buildersHacker News discussion search: public service incidents and postmortems: Search public Hacker News stories for public service incidents and postmortems. Returns story titles, links, scores, authors, and timestamps.$0.01 Base155 ms–100% up
  97. 100market.datapackvibe.com/x402/demand-next-community-technical-pricing-productHacker News discussion search: developer API pricing and quotas: Search public Hacker News stories for developer API pricing and quotas. Returns story titles, links, scores, authors, and timestamps.$0.01 Base161 ms–100% up
  98. 100market.datapackvibe.com/x402/demand-next-community-technical-pricing-researchersHacker News discussion search: developer API pricing and quotas: Search public Hacker News stories for developer API pricing and quotas. Returns story titles, links, scores, authors, and timestamps.$0.01 Base169 ms–100% up
  99. 100market.datapackvibe.com/x402/demand-next-community-technical-pricing-foundersHacker News discussion search: developer API pricing and quotas: Search public Hacker News stories for developer API pricing and quotas. Returns story titles, links, scores, authors, and timestamps.$0.01 Base156 ms–100% up
  100. 100market.datapackvibe.com/x402/demand-next-community-technical-pricing-operatorsHacker News discussion search: developer API pricing and quotas: Search public Hacker News stories for developer API pricing and quotas. Returns story titles, links, scores, authors, and timestamps.$0.01 Base155 ms–100% up