x402watch

52,418 paid endpoints are listed. 38,373 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 2026-11-14 18:16 UTC · 52,418 probed

38,373 answering 4027,063 down5,650 rejecting1,332 no paywall852 price drift
  1. 19logicnodes.io/v1/tools/swap_price_impactConstant-product swap output and price impact rejecting–0% up
  2. 19logicnodes.io/v1/tools/evm_log_decodeDecode an event log with your ABI rejecting–0% up
  3. 19logicnodes.io/v1/tools/address_validateValidate an address rejecting–0% up
  4. 19logicnodes.io/v1/tools/aptos_name_resolveResolve an Aptos name (.apt) rejecting–0% up
  5. 19logicnodes.io/v1/tools/aptos_tx_decodeDecode an Aptos entry-function call rejecting–0% up
  6. 19logicnodes.io/v1/tools/slippage_boundsSlippage bounds in base units rejecting–0% up
  7. 19logicnodes.io/v1/tools/money_calcCurrency-aware money math rejecting–0% up
  8. 19logicnodes.io/v1/tools/evm_tx_receiptEVM transaction receipt rejecting–0% up
  9. 19logicnodes.io/v1/tools/loan_calcLevel-payment loan rejecting–0% up
  10. 19r5vy8i.wormhole.bar/v1/fr/property/commune-statsFrance commune-level property price statistics from official DVF sales (DGFiP)$0.01 Baserejecting–0% up
  11. 19mr-river16.makar52nn2016.workers.dev/api/uuidRandom UUID v4 (paid $0.10)$0.01 Baserejecting–0% up
  12. 19logicnodes.io/v1/tools/evm_contract_typeClassify an EVM address rejecting–0% up
  13. 19logicnodes.io/v1/tools/evm_calldata_decodeDecode calldata with your ABI rejecting–0% up
  14. 19golf-evm-math.x402-evm-math.workers.dev/data/kalshi-lipKalshi liquidity incentive program feed: reward pool per market ranked by reward per resting dollar per day, with qualifying size and resolution time.$0.01 Baserejecting–0% up
  15. 19r5vy8i.wormhole.bar/v1/fr/property/rentFrance rent levels and gross rental yield for any commune or address$0.01 Baserejecting–0% up
  16. 19johto-x402-api.johtodata.workers.dev/v1/tenders$0.011 per call. One fixed bundle of the newest notices from 4 markets, 10 rows each, read live for each call: EU (TED), UK (Find a Tender), France (BOAMP) and Australia (AusTender Contract Notices, awarded contracts). Every row carries market, source and licence. A market whose feed fails is marked unavailable; you are charged only when at least one market returns rows. No parameters.$0.011 Baserejecting–0% up
  17. 19mr-river18.makar52nn2016.workers.dev/api/weatherCurrent weather by city (paid $0.005)$0.01 Baserejecting–0% up
  18. 19coord.taifoon.dev/v1/access/reseller/childrenMint one per-builder child key under your reseller key (_RESELLER_CHILD_KEYS_v1_, 2026-10-22): the key is shown once and stored hashed like every other key. Its calls are paid from your balance and held by its own cap: a child spends at most cap_usdc in all, and never more than your balance. Your markup applies to its calls; its usage rolls up to you by key and by channel. rejecting–0% up
  19. 19aptu.dev/v1/x401-probeFetch a 401 demand-probe challenge without paying rejecting–0% up
  20. 19golf-evm-math.x402-evm-math.workers.dev/v1/chat/completionsLLM inference API: OpenAI-compatible chat completions, send messages, get choices and usage$0.001 Baserejecting–0% up
  21. 19golf-evm-math.x402-evm-math.workers.dev/bittensor/subnetsBittensor registration cost and prune risk for all subnets: burn in TAO, free slots, incentive needed to survive, refreshed every 30 minutes.$0.008 Baserejecting–0% up
  22. 19golf-evm-math.x402-evm-math.workers.dev/merkl-stableDeFi yield API: live stablecoin yield ranking, best stable APY / net APR of Merkl reward campaigns on Base (after gas, TVL >= $100k), refreshed every 2 hours, for yield farming agents.$0.008 Baserejecting–0% up
  23. 19exchangerebel.com/toll/resolve/consensusCheck resolutions across three platforms.$0.05 solanarejecting–0% up
  24. 19agentresolver.vercel.app/api/provider-bootstrapVerify a provider origin and prepare immediate + durable discovery handoffs rejecting–0% up
  25. 19mr-river18.makar52nn2016.workers.dev/api/base-gasBase gas snapshot (paid $0.005)$0.02 Baserejecting–0% up
  26. 19mr-river19.makar52nn2016.workers.dev/api/ai-chatLLM chat completion (paid $0.01)$0.10 Baserejecting–0% up
  27. 19mr-river18.makar52nn2016.workers.dev/api/wallet-profileWallet profile on Base (paid $0.01)$0.10 Baserejecting–0% up
  28. 19mr-river19.makar52nn2016.workers.dev/api/crypto-newsTop crypto headlines (paid $0.005)$0.02 Baserejecting–0% up
  29. 19mr-river19.makar52nn2016.workers.dev/api/base-gasBase gas snapshot (paid $0.005)$0.02 Baserejecting–0% up
  30. 19mr-river19.makar52nn2016.workers.dev/api/erc20-balanceERC20 token balance on Base (paid $0.005)$0.02 Baserejecting–0% up
  31. 19coord.taifoon.dev/v1/fees/quoteThe layer’s fee on one job settled through it, priced from live gas (_JOB_FEE_v1_): the larger of the routing bps and the layer’s own gas on the job at the quoted gas price plus a volatility buffer, plus a margin; refused below the smallest price where that fits under the hook’s 10 % cap, so a settled job never costs the layer more than it pays. rejecting–0% up
  32. 19api.m2mcent.com/ransomware-negotiation-bot-mcp/previewFree Dry-Run Validation & Quote for Execute ransomware-negotiation-bot-mcp rejecting–0% up
  33. 19botsrated.com/v1/checkMeasured facts for a host$0.002 Baserejecting–0% up
  34. 19speedbot.dev/api/launch/arc-challenge/meRead private Arc challenge progress and original payout receipts rejecting–0% up
  35. 19coord.taifoon.dev/v1/handshakeA provider’s inbox, a hirer’s outbox, or the dispatch counters. rejecting–0% up
  36. 19speedbot.dev/api/launch/arc-challenge/joinReserve one Arc challenge place after verified wallet binding and explicit spending consent rejecting–0% up
  37. 19api.m2mcent.com/spot-market-sweeper-mcp/previewFree Dry-Run Validation & Quote for Execute spot-market-sweeper-mcp rejecting–0% up
  38. 194023-agqz5x3ybel4f5yrdnvpaqbzgi.instabox.tech/marketDual-source crypto market snapshot$0.005 solanarejecting–0% up
  39. 194023-agqz5x3ybel4f5yrdnvpaqbzgi.instabox.tech/crawlCrawl a site (same-host BFS) into a Markdown pack$0.05 solanarejecting–0% up
  40. 19coord.taifoon.dev/v1/access/reseller/vaultsEnrol one vault for a client of yours (_RESELLER_VAULTS_v1_, owner 2026-10-22: a reseller programme gets vault permissions): a new client tenant (no keys yet) and its vault as the off-chain record every tenant gets (vault:tenant:<slug>, state requested, stage record), owned by the client and linked to you by enrolled_by. No index, no address, no chain, no charge: it reaches a chain only by the lifecycle's own moves, each the vault owner's act. rejecting–0% up
  41. 19btc402.genesis402.com/reputation/%7Baddress%7DCaller status for an address; never changes the price rejecting–0% up
  42. 19payments-intel-production.up.railway.app/v1/de-house-pricesHow have German house prices moved? Quarterly Destatis house price index (Haeuserpreisindex, base 2025=100) for Germany, all / new / existing dwellings, latest, 4-quarter and 12-quarter change (dl-de/by-2-0)$0.03 Baserejecting–0% up
  43. 19ipvolt.com/beta/api/agent/identityRegister an agent (auth.md service_auth) rejecting–0% up
  44. 19weckett.com/mcpWECKETT MCP price_asset$0.01 Baserejecting–0% up
  45. 19payments-intel-production.up.railway.app/v1/stamp-dutyWhat are the Irish residential stamp duty rates? Free: rate bands and VAT note only, no price calculation (20 calls/day/IP). Information, not legal advice. For a calculation use paid /v1/purchase-cost ($0.02) rejecting–0% up
  46. 19api.m2mcent.com/salescloser-ai-mcp/previewFree Dry-Run Validation & Quote for Execute salescloser-ai-mcp rejecting–0% up
  47. 19agent.chiemgaufilms.com/api/v1/free-sample/%7BserviceId%7DFree sample of one service (limited) rejecting–0% up
  48. 19coord.taifoon.dev/v1/desk/proof/transfers/%7Bchain%7D/%7Baddress%7DCompleteness proof over final blocks (_DESK_PROOFS_v1_): every ERC-20 transfer to (in) or from (out) an address in a range, and a proof there is no other; NONE proves absence. rejecting–0% up
  49. 19amber-maple-3b054208.tunnl.gg/v1/erc8004-validateAegis ERC-8004 Agent Trust & Registration Validator (GET, $0.02 USDC)$0.02 Baserejecting–0% up
  50. 19api.shopsocial-api.workers.dev/api/ecommerce/dealstreamGet dealstream$0.002 Baserejecting–0% up
  51. 19mr-river15.makar52nn2016.workers.dev/api/wallet-profileWallet profile on Base (paid $0.01)$0.10 Baserejecting–0% up
  52. 191gxi8d.wormhole.bar/llms.txtAgent instructions rejecting–0% up
  53. 19mr-river15.makar52nn2016.workers.dev/api/token-verdictToken safety verdict (paid $0.02)$0.10 Baserejecting–0% up
  54. 19mr-river18.makar52nn2016.workers.dev/api/block-numberLatest Base block height (paid $0.10)$0.01 Baserejecting–0% up
  55. 19mr-river26.makar52nn2016.workers.dev/api/day-passx402 Day Pass (paid $0.25)$0.25 Baserejecting–0% up
  56. 19mr-river41.makar52nn2016.workers.dev/api/uuidRandom UUID v4 (paid $0.10)$0.01 Baserejecting–0% up
  57. 19mr-river48.makar52nn2016.workers.dev/api/wallet-profileWallet profile on Base (paid $0.01)$0.10 Baserejecting–0% up
  58. 19mr-river44.makar52nn2016.workers.dev/api/fear-greedCrypto Fear & Greed index (paid $0.005)$0.01 Baserejecting–0% up
  59. 19mr-river44.makar52nn2016.workers.dev/api/bounties/demoFree demo sample rejecting–0% up
  60. 19mr-river47.makar52nn2016.workers.dev/api/crypto-priceLive crypto spot price (paid $0.005)$0.01 Baserejecting–0% up
  61. 19mr-river44.makar52nn2016.workers.dev/api/btc-halvingBitcoin halving countdown (paid $0.003)$0.02 Baserejecting–0% up
  62. 19priceplain.onrender.com/feedbackSend feedback (free) rejecting–0% up
  63. 191gxi8d.wormhole.bar/downloadDownload the x402 Seller Field Kit (ZIP)$1.00 Baserejecting–0% up
  64. 19coord.taifoon.dev/v1/exchanges/%7Bedge_id%7D/agreementThe agreement of one exchange edge as it is enforced on calls (_EXCHANGE_CALL_v1_): who signed it, whether that is the signer it names and the seller of record, its scope and the calls it refused. rejecting–0% up
  65. 19mr-river41.makar52nn2016.workers.dev/api/btc-halvingBitcoin halving countdown (paid $0.003)$0.02 Baserejecting–0% up
  66. 19mr-river47.makar52nn2016.workers.dev/api/bountiesFunded bounty feed (paid $0.005)$0.10 Baserejecting–0% up
  67. 19mr-river39.makar52nn2016.workers.dev/api/coin-convertCross-asset conversion at live USD spot (paid $0.005)$0.02 Baserejecting–0% up
  68. 19mr-river47.makar52nn2016.workers.dev/api/honeypotHoneypot trust score (paid $0.005)$0.10 Baserejecting–0% up
  69. 19mr-river48.makar52nn2016.workers.dev/api/ai-chatLLM chat completion (paid $0.01)$0.10 Baserejecting–0% up
  70. 19mr-river46.makar52nn2016.workers.dev/api/crypto-priceLive crypto spot price (paid $0.005)$0.01 Baserejecting–0% up
  71. 19mr-river49.makar52nn2016.workers.dev/api/day-passx402 Day Pass (paid $0.25)$0.25 Baserejecting–0% up
  72. 19mr-river50.makar52nn2016.workers.dev/api/bountiesFunded bounty feed (paid $0.005)$0.10 Baserejecting–0% up
  73. 19mr-river44.makar52nn2016.workers.dev/api/healthFree health check rejecting–0% up
  74. 19mr-river48.makar52nn2016.workers.dev/api/fear-greedCrypto Fear & Greed index (paid $0.005)$0.01 Baserejecting–0% up
  75. 19mr-river45.makar52nn2016.workers.dev/api/market-pulseFull market snapshot in one call (paid $0.01)$0.02 Baserejecting–0% up
  76. 19mr-river46.makar52nn2016.workers.dev/api/crypto-newsTop crypto headlines (paid $0.005)$0.02 Baserejecting–0% up
  77. 19api.m2mcent.com/seo-ghost-mcp/previewFree Dry-Run Validation & Quote for Execute seo-ghost-mcp rejecting–0% up
  78. 19mr-river46.makar52nn2016.workers.dev/api/weatherCurrent weather by city (paid $0.005)$0.01 Baserejecting–0% up
  79. 19agentread.omar-cv.workers.dev/healthHealth check rejecting–0% up
  80. 19mr-river48.makar52nn2016.workers.dev/api/block-numberLatest Base block height (paid $0.10)$0.01 Baserejecting–0% up
  81. 19mr-river49.makar52nn2016.workers.dev/api/ai-chatLLM chat completion (paid $0.01)$0.10 Baserejecting–0% up
  82. 19security-check.solution-engine.com/v1/reports/%7Bid%7DFree: permalink to a purchased report, with the buyer's history for the same target rejecting–0% up
  83. 19api.m2mcent.com/synthetic-data-entropy-eval-mcp/previewFree Dry-Run Validation & Quote for Kolmogorov-Smirnov & Wasserstein Fidelity Evaluator rejecting–0% up
  84. 19mr-river7.makar52nn2016.workers.dev/api/usd-priceMulti-asset USD price snapshot in one call (paid $0.005)$0.02 Baserejecting–0% up
  85. 19mr-river7.makar52nn2016.workers.dev/api/bountiesFunded bounty feed (paid $0.005)$0.10 Baserejecting–0% up
  86. 19mr-river16.makar52nn2016.workers.dev/api/erc20-balanceERC20 token balance on Base (paid $0.005)$0.02 Baserejecting–0% up
  87. 19mr-river7.makar52nn2016.workers.dev/api/token-verdictToken safety verdict (paid $0.02)$0.10 Baserejecting–0% up
  88. 19mr-river7.makar52nn2016.workers.dev/api/market-pulseFull market snapshot in one call (paid $0.01)$0.02 Baserejecting–0% up
  89. 19api.m2mcent.com/shopify-catalog-scraper-mcp/previewFree Dry-Run Validation & Quote for Execute shopify-catalog-scraper-mcp rejecting–0% up
  90. 19api.m2mcent.com/transfer-pricing-oracle-mcp/previewFree Dry-Run Validation & Quote for OECD BEPS Interquartile Transfer Pricing Auditor rejecting–0% up
  91. 19mr-river9.makar52nn2016.workers.dev/api/verdictOne-line repo safety verdict (paid $0.005)$0.02 Baserejecting–0% up
  92. 19agent.ggez.my.id/verify-api/listing-checkListing-truth check: does an x402 endpoint charge what it advertises?$0.02 Baserejecting–0% up
  93. 19mr-river10.makar52nn2016.workers.dev/api/timeCurrent UTC time (paid $0.10)$0.01 Baserejecting–0% up
  94. 19mr-river26.makar52nn2016.workers.dev/api/token-verdictToken safety verdict (paid $0.02)$0.10 Baserejecting–0% up
  95. 19mr-river28.makar52nn2016.workers.dev/api/crypto-priceLive crypto spot price (paid $0.005)$0.01 Baserejecting–0% up
  96. 19mr-river10.makar52nn2016.workers.dev/api/verdictOne-line repo safety verdict (paid $0.005)$0.02 Baserejecting–0% up
  97. 19mr-river11.makar52nn2016.workers.dev/api/block-numberLatest Base block height (paid $0.10)$0.01 Baserejecting–0% up
  98. 19mr-river14.makar52nn2016.workers.dev/api/weatherCurrent weather by city (paid $0.005)$0.01 Baserejecting–0% up
  99. 19mr-river16.makar52nn2016.workers.dev/api/ai-chatLLM chat completion (paid $0.01)$0.10 Baserejecting–0% up
  100. 19mr-river18.makar52nn2016.workers.dev/api/token-verdictToken safety verdict (paid $0.02)$0.10 Baserejecting–0% up