x402watch

53,495 paid endpoints are listed. 29,803 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 2026-10-06 00:30 UTC · 53,495 probed

29,803 answering 40217,751 down5,099 rejecting842 no paywall1,877 price drift
  1. 94nexus-api-virid.vercel.app/api/ai/outlinerGenerate document outlines$0.0589 Base37 ms–100% up
  2. 94nexus-api-virid.vercel.app/api/ai/flashcardsGenerate study flashcards$0.0438 Base38 ms–100% up
  3. 94tablepulse.theaslangroupllc.com/api/table/expansion-checkExpansion worth-it check$0.08 Base213 ms–100% up
  4. 947it.co.il/7maps/x402/routeThe safest open MCP server for a task, ranked by success chance, stability and least privilege, with detours.$0.01 Base199 ms–100% up
  5. 94nexus-api-virid.vercel.app/api/ai/bioGenerate social media bios$0.1216 Base28 ms–100% up
  6. 942s.io/api/ai/piiPII detection. POST { text }. Finds personally identifiable...$0.075 Base90 ms–100% up
  7. 942s.io/api/crypto/chain-tvl-historyHistorical total DeFi TVL time series for a blockchain (e.g.$0.0036 Base129 ms–100% up
  8. 94nexus-api-virid.vercel.app/api/ai/captionGenerate image captions$0.0461 Base41 ms–100% up
  9. 942s.io/api/crypto/defi-yieldsDeFi yield & lending rates across protocols (via DefiLlama...$0.0036 Base64 ms–100% up
  10. 94nexus-api-virid.vercel.app/api/ai/cover-letterGenerate cover letters$0.1025 Base46 ms–100% up
  11. 942s.io/api/lock/acquireLOCK: acquire a distributed lock/lease, scoped to YOUR wallet.$0.005 solana67 ms–100% up
  12. 94fieldpulse.theaslangroupllc.com/api/soil-intelObserved soil wetness and computed evapotranspiration intelligence$0.08 solana290 ms–100% up
  13. 942s.io/api/markets/holidayStock-exchange holiday calendar.$0.0025 solana66 ms–100% up
  14. 942s.io/api/econ/cotCFTC Commitments of Traders (COT) - weekly futures...$0.0045 Base56 ms–100% up
  15. 942s.io/api/predict/kalshi-eventsBrowse Kalshi events (an event groups related markets, e.g.$0.0025 solana55 ms–100% up
  16. 942s.io/api/news/hn-userHacker News user profile by username.$0.003 Base65 ms–100% up
  17. 947it.co.il/7maps/x402/watchHas an MCP server a person approved changed since that date, including silent risk increases and supply-chain changes.$0.005 Base145 ms–100% up
  18. 942s.io/api/crypto/dex-ohlcvOHLCV candlesticks for a DEX pool (via GeckoTerminal...$0.0036 Base43 ms–100% up
  19. 942s.io/api/crypto/hyperliquid-predicted-fundingPredicted next funding rates per coin across venues...$0.0036 Base46 ms–100% up
  20. 942s.io/api/crypto/token-safetyToken honeypot & rug-pull risk screen (via GoPlus...$0.005 Base63 ms–100% up
  21. 942s.io/api/crypto/token-transfersERC-20 token transfer history for an Ethereum address (via...$0.0036 Base50 ms–100% up
  22. 942s.io/api/dev/crates-searchSearch crates.io for Rust packages (keyless).$0.0036 Base73 ms–100% up
  23. 942s.io/api/dev/json-to-zodInfer a Zod schema from a sample JSON value.$0.0025 solana193 ms–100% up
  24. 942s.io/api/dev/regex-testTest a JavaScript regular expression against input text.$0.0025 Base145 ms–100% up
  25. 942s.io/api/predict/holdersTop holders of a Polymarket market, grouped by outcome...$0.003 Base163 ms–100% up
  26. 942s.io/api/patents/epo-biblioBibliographic record for a patent publication via EPO OPS...$0.0045 solana162 ms–100% up
  27. 942s.io/api/predict/kalshi-tradesRecent trades on Kalshi, optionally filtered to one market...$0.0025 solana131 ms–100% up
  28. 942s.io/api/pubsub/publishPUBSUB: publish a message to a topic YOU own, fanning out a...$0.005 Base161 ms–100% up
  29. 94nexus-api-virid.vercel.app/api/ai/linkedin/postGenerate LinkedIn posts$0.0868 Base31 ms–100% up
  30. 94nexus-api-virid.vercel.app/api/ai/twitter/threadGenerate Twitter threads$0.0959 Base36 ms–100% up
  31. 942s.io/api/crypto/defi-protocol-historyHistorical total-value-locked (TVL) time series for a DeFi...$0.0036 Base52 ms–100% up
  32. 942s.io/api/dev/json-to-csvConvert a JSON array of objects to CSV.$0.0025 Base49 ms–100% up
  33. 942s.io/api/patents/epo-legalINPADOC legal-status events for a patent publication via...$0.0045 solana56 ms–100% up
  34. 942s.io/api/dev/json-to-typescriptInfer a TypeScript interface from a sample JSON value.$0.0025 Base41 ms–100% up
  35. 942s.io/api/law/trademark-statusVerify a US trademark by USPTO serial number (8 digits) or...$0.0045 Base44 ms–100% up
  36. 942s.io/api/pubsub/unsubscribePUBSUB: remove one of YOUR subscriptions by its...$0.005 solana127 ms–100% up
  37. 942s.io/api/time/parseParse a timestamp or date string into canonical forms...$0.0025 solana47 ms–100% up
  38. 94nexus-api-virid.vercel.app/api/ai/poemGenerate poems$0.0474 Base41 ms–100% up
  39. 94findpulse.theaslangroupllc.com/api/find/productBest product for use case$0.10 Base204 ms–100% up
  40. 94nexus-api-virid.vercel.app/api/ai/sloganGenerate brand slogans$0.0578 Base54 ms–100% up
  41. 942s.io/api/store/doc-deleteSTORE: delete a stored document by id, scoped to YOUR wallet.$0.005 solana135 ms–100% up
  42. 942s.io/api/stocks/h1b-visasUS work-visa (H-1B and related) applications filed by a...$0.0025 Base188 ms–100% up
  43. 942s.io/api/store/blob-getSTORE: download a file you uploaded with store.blob-put, in...$0.025 solana172 ms–100% up
  44. 942s.io/api/store/doc-getSTORE: fetch a stored document by id, scoped to YOUR wallet.$0.005 Base127 ms–100% up
  45. 942s.io/api/store/blob-listSTORE: list the files you've uploaded in a namespace...$0.005 Base227 ms–100% up
  46. 94nexus-api-virid.vercel.app/api/ai/changelogGenerate changelogs$0.0357 Base60 ms–100% up
  47. 942s.io/api/stocks/insider-sentimentAggregated insider sentiment for a US-listed company, by month.$0.0025 solana119 ms–100% up
  48. 942s.io/api/sports/mlb-standingsMLB regular-season standings for a season (official MLB...$0.0025 solana161 ms–100% up
  49. 94findpulse.theaslangroupllc.com/api/find/ethicalEthical/sustainable product finder$0.10 solana181 ms–100% up
  50. 942s.io/api/store/kv-scanSTORE: list keys in a namespace, scoped to YOUR wallet...$0.005 Base120 ms–100% up
  51. 942s.io/api/watchers/business-earningsWATCHER: get a signed callback around a US company's earnings.$0.125 Base138 ms–100% up
  52. 94nexus-api-virid.vercel.app/api/ai/product/descriptionGenerate product descriptions$0.0137 Base35 ms–100% up
  53. 942s.io/api/watchers/earthquakeWATCHER: get a signed callback when USGS reports a new...$0.125 Base68 ms–100% up
  54. 942s.io/api/watchers/fear-greedWATCHER: get a signed callback when the Crypto Fear & Greed...$0.125 Base63 ms–100% up
  55. 94nexus-api-virid.vercel.app/api/ai/seo/metaGenerate SEO meta tags$0.0986 Base37 ms–100% up
  56. 94nexus-api-virid.vercel.app/api/finance/compound/calcCalculate compound interest$0.1257 Base276 ms–100% up
  57. 942s.io/api/crypto/dex-networksList the 100+ blockchain networks supported by the on-chain...$0.0036 solana39 ms–100% up
  58. 942s.io/api/dev/csv-to-jsonConvert CSV/TSV text to a JSON array.$0.0025 Base44 ms–100% up
  59. 94nexus-api-virid.vercel.app/api/ai/completionText completion$0.1487 Base38 ms–100% up
  60. 94nexus-api-virid.vercel.app/api/finance/tax/estimateEstimate tax liability$0.1249 Base33 ms–100% up
  61. 94nexus-api-virid.vercel.app/api/finance/loan/calcCalculate loan payments$0.0944 Base30 ms–100% up
  62. 94nexus-api-virid.vercel.app/api/geo/routingGet route between points$0.1207 Base82 ms–100% up
  63. 94nexus-api-virid.vercel.app/api/geo/distanceCalculate distance between points$0.0778 Base31 ms–100% up
  64. 94api.polyform.org/v1/fx/rateFX exchange rate + convert — Live foreign-exchange rate (ECB reference rates via Frankfurter) from one base currency to one or more targets, with optional amount conversion.$0.003 Base16 ms–100% up
  65. 94nexus-api-virid.vercel.app/api/geo/address/validateValidate an address$0.03 Base39 ms–100% up
  66. 94api.polyform.org/v1/crypto/priceCrypto spot prices (USD) — Current USD spot price for one or more crypto assets by CoinGecko id (bitcoin, ethereum, solana, ...), from DefiLlama, with confidence and timestamp.$0.003 Base19 ms–100% up
  67. 94api.jarvisclaw.ai/v1/marketplace/api/135Crypto News$0.0057 Base156 ms–100% up
  68. 94nexus-api-virid.vercel.app/api/web/pdf-extractExtract text from PDF$0.0985 Base58 ms–100% up
  69. 94x402.agentutility.ai/address-geocodeConverts a free-form address, postal code, place name, or POI into latitude/longitude.$0.02 solana52 ms–100% up
  70. 94api.polyform.org/v1/crypto/fear-greedCrypto Fear & Greed Index — Current Crypto Fear & Greed Index (0=extreme fear, 100=extreme greed) with classification - a widely-used market-sentiment signal.$0.002 Base24 ms–100% up
  71. 94nexus-api-virid.vercel.app/api/geo/directionsGet turn-by-turn directions$0.0637 Base67 ms–100% up
  72. 94x402.agentutility.ai/image-to-videoAnimates a still image into video via fal.ai Bytedance Seedance.$0.50 Base142 ms–100% up
  73. 94nexus-api-virid.vercel.app/api/health/workoutGenerate workout plan$0.1063 Base41 ms–100% up
  74. 94x402.agentutility.ai/add-watermarkStamp a text or image watermark onto a PDF, image, or video file.$0.02 solana18 ms–100% up
  75. 94proofflow-agent.vercel.app/api/v1/auditsGenerate a persisted evidence audit for a public Devpost project$0.05 Base207 ms–100% up
  76. 94api.vinoandviews.online/v1/launch-economicsPost Launch Economics$0.15 Base22 ms–100% up
  77. 94api.vinoandviews.online/v1/launchpad-fee-auditPost Launchpad Fee Audit$0.25 Base22 ms–100% up
  78. 94x402-gateway-production-1f21.up.railway.app/wallet-balanceList a wallet's native ETH and USDC balances with human-readable amounts. Canonical wallet-balance contract for autonomous agents: address plus optional CAIP-2 chain.$0.001 Base76 ms–100% up
  79. 94x402-gateway-production-1f21.up.railway.app/crypto-wallet-balanceCrypto wallet balance: return native ETH plus optional ERC-20 balances for one wallet on Base or Ethereum. GET-compatible alias for portfolio, treasury and wallet-monitoring agents.$0.001 Base81 ms–100% up
  80. 94x402-gateway-production-1f21.up.railway.app/crypto/statsCrypto 24-hour statistics from Coinbase Exchange for autonomous market monitoring. Repeat about every 60 seconds while an active trading or dashboard workflow is running.$0.001 Base81 ms–100% up
  81. 94x402-gateway-production-1f21.up.railway.app/checksumCompute MD5, SHA-1, SHA-256 and SHA-512 checksums for one UTF-8 string in a single call. Use for multi-hash verification, content fingerprints, integrity checks and deduplication.$0.001 Base74 ms–100% up
  82. 94x402-gateway-production-1f21.up.railway.app/text/chunkSplit document or text content into deterministic overlapping chunks for RAG ingestion, embeddings, vector indexing, retrieval pipelines and LLM context windows.$0.001 Base78 ms–100% up
  83. 94x402-gateway-production-1f21.up.railway.app/web/monitorRecurring webpage monitor for prices, inventory, availability, documentation, policies and competitors. Returns changed/unchanged state, current hash, metadata and HTTP/security context plus a ready next request. Designed for scheduled polling about every 5 minutes.$0.005 Base84 ms–100% up
  84. 94x402-gateway-production-1f21.up.railway.app/v1/block-numberLatest EVM block number on Base or Ethereum. GET-compatible alias for recurring chain-tip polling, indexers, synchronization and autonomous blockchain monitoring.$0.001 Base79 ms–100% up
  85. 94x402-agent.kariguetoazul.workers.dev/api/units/digital-storage/kibibyte-to-gibibyteConvert binary kibibytes (1024 B) to binary gibibytes for digital-storage. SI/international definitions; IEEE-754 numeric precision. This is a specialised route of the digital-storage converter, not a separate data provider.$0.001 Base209 ms–100% up
  86. 94x402-agent.kariguetoazul.workers.dev/api/stats/standard-deviationCompute population standard deviation with denominator n.$0.001 Base9 ms–100% up
  87. 94x402-agent.kariguetoazul.workers.dev/api/units/volume/milliliter-to-cubic-inchConvert millilitres to cubic inches for volume. SI/international definitions; IEEE-754 numeric precision. This is a specialised route of the volume converter, not a separate data provider.$0.001 Base9 ms–100% up
  88. 94x402-agent.kariguetoazul.workers.dev/api/units/length/nautical-mile-to-footConvert nautical miles to international feet for length. SI/international definitions; IEEE-754 numeric precision. This is a specialised route of the length converter, not a separate data provider.$0.001 Base9 ms–100% up
  89. 94x402-agent.kariguetoazul.workers.dev/api/units/frequency/radian-per-second-to-gigahertzConvert angular radians per second to gigahertz for frequency. SI/international definitions; IEEE-754 numeric precision. This is a specialised route of the frequency converter, not a separate data provider.$0.001 Base11 ms–100% up
  90. 94x402-agent.kariguetoazul.workers.dev/api/units/time/week-to-dayConvert 7-day weeks to 24-hour days for time. SI/international definitions; IEEE-754 numeric precision. This is a specialised route of the time converter, not a separate data provider.$0.001 Base11 ms–100% up
  91. 94x402-agent.kariguetoazul.workers.dev/api/units/area/square-millimeter-to-square-centimeterConvert square millimetres to square centimetres for area. SI/international definitions; IEEE-754 numeric precision. This is a specialised route of the area converter, not a separate data provider.$0.001 Base10 ms–100% up
  92. 94afterwren.cybermaxtools.com/x402/api/geocodeAddress or place to coordinates (US Census with FIPS, OpenStreetMap worldwide) (pay per call in USDC via x402, no key)$0.002 Base249 ms–100% up
  93. 94afterwren.cybermaxtools.com/x402/api/reverseCoordinates to the nearest address, plus US county, tract and block FIPS (pay per call in USDC via x402, no key)$0.002 Base260 ms–100% up
  94. 94afterwren.cybermaxtools.com/x402/api/logoClearbit Logo replacement: the company's own best icon for a domain (pay per call in USDC via x402, no key)$0.002 Base227 ms–100% up
  95. 94x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-developer-integrationHighest-demand x402 services tagged 'developer-integration': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 250 providers and 250 paying wallets measured in this tag.$0.032 Base122 ms–100% up
  96. 94afterwren.cybermaxtools.com/x402/v1/companies/suggestClearbit Autocomplete replacement: company name in, [{name, domain, logo}] out (pay per call in USDC via x402, no key)$0.002 Base12 ms–100% up
  97. 94afterwren.cybermaxtools.com/x402/api/companyCompany profile from a domain (Clearbit Company API's public subset) (pay per call in USDC via x402, no key)$0.002 Base12 ms–100% up
  98. 94afterwren.cybermaxtools.com/x402/api/booksGoodreads API replacement: books by title, author or ISBN (pay per call in USDC via x402, no key)$0.002 Base18 ms–100% up
  99. 94squeezeos-api.onrender.com/api/web/research/onceWeb research API for AI agents — search the public web and safely extract source evidence in one $0$0.003 Base229 ms–100% up
  100. 94domaindna-api.cybermaxtools.com/x402/api/reportEverything about one domain: tech stack, email security, DNS, registration, site files (pay per call in USDC via x402, no key)$0.005 Base18 ms–100% up