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. 19byp3we6w7e2s.hostc.app/mcpMCP endpoint info (POST JSON-RPC for tools/list, tools/call) rejecting–0% up
  2. 19coord.taifoon.dev/v1/pipe/twigs/%7Bactor%7D/proof/%7Btwig%7D_TWIG_PROOF_PUBLIC_v1_: the inclusion proof of one twig in an actor's Merkle Mountain Range (the per-actor MMR of flush roots the Twigster signs, docs/TWIGSTER.md §7), with the actor's last signed head. A twig is addressed as <actor>#<twig> (taifoon#242700, directory:x402-base#3, upgrades:36927#0). Hashes only; keyless. The twig hash itself comes from the record that names it (a signed envelope's turbine record): siblings fold it to its peak, the peaks bag to the signed head. rejecting–0% up
  3. 19exchangerebel.com/toll/anomaly/batchBatch anomaly detection for up to 100 series.$0.25 solanarejecting–0% up
  4. 19exchangerebel.com/toll/atlas/routeRank lawful Source Atlas routes for a need.$0.01 solanarejecting–0% up
  5. 19exchangerebel.com/toll/carbon/intensity/forecastForecast average carbon intensity curve for one zone.$0.01 solanarejecting–0% up
  6. 19exchangerebel.com/toll/atlas/changesFetch Source Atlas changes since a date.$0.01 solanarejecting–0% up
  7. 19exchangerebel.com/toll/access/crawlSitemap accessibility crawl: $0.05/page first 25, $0.02/page beyond (max 50).$0.05 solanarejecting–0% up
  8. 19exchangerebel.com/toll/a2a/inbox/ackAcknowledge an A2A message (free, owner-signed). rejecting–0% up
  9. 19exchangerebel.com/toll/commons/operators/%7Bid%7DRead one operator profile + reputation facts. rejecting–0% up
  10. 193st75iijzuft.hostc.app/token-priceToken price API: real-time DEX price, liquidity, volume, FDV for any ERC-20 (Base, Ethereum, Arbitrum) ($0.005 USDC)$0.005 Baserejecting–0% up
  11. 19johto-x402-api.johtodata.workers.dev/v1/jp-invoice-check$0.002 per call. Status of one Japanese qualified-invoice issuer registration number (適格請求書発行事業者 登録番号, T + 13 digits) for corporations (法人): registration_number, status (registered, cancelled, expired, not_found), name, registration_date, update_date, cancel_date and expire_date when set, prefecture of the head office, data_as_of and source. Batch: POST {"numbers":[...]} with up to 1000 numbers at $0.0012 per unique number; the price is set from the count before payment. Data as of 2026-10-21, f$0.002 Baserejecting–0% up
  12. 19shcugph7rdnj.hostc.app/symbolsCoverage: symbols and chains rejecting–0% up
  13. 193st75iijzuft.hostc.app/yieldsDeFi yields / best APY finder by asset and chain with risk notes (stablecoin yield, lending, LP) ($0.01 USDC)$0.01 Baserejecting–0% up
  14. 19mr-river15.makar52nn2016.workers.dev/api/bountiesFunded bounty feed (paid $0.005)$0.10 Baserejecting–0% up
  15. 19mr-river15.makar52nn2016.workers.dev/api/ai-chatLLM chat completion (paid $0.01)$0.10 Baserejecting–0% up
  16. 193st75iijzuft.hostc.app/.well-known/x402x402 discovery fan-out rejecting–0% up
  17. 193st75iijzuft.hostc.app/whale-flowsWhale alerts & smart money exchange flows: large CEX deposits/withdrawals, net inflow/outflow, top movers ($0.02 USDC)$0.02 Baserejecting–0% up
  18. 19qwri8qma6psb.hostc.app/unlocks/upcomingToken unlock calendar: upcoming vesting unlocks in the next N days, sized vs supply ($0.02 USDC)$0.02 Baserejecting–0% up
  19. 19qwri8qma6psb.hostc.app/unlock-riskToken unlock / vesting risk: next unlock size vs circulating supply, CEX inflows, sell-pressure score ($0.01 USDC)$0.01 Baserejecting–0% up
  20. 19shcugph7rdnj.hostc.app/due-diligenceToken due diligence report (DD) in Markdown for LLM agents: rug check, honeypot, holders, whales, unlocks, news ($0.05 USDC)$0.05 Baserejecting–0% up
  21. 19qwri8qma6psb.hostc.app/governanceDAO governance feed: active Snapshot proposals & vote results for Aave, Uniswap, Arbitrum, Optimism, Lido + 25 more ($0.005) ($0.005 USDC)$0.005 Baserejecting–0% up
  22. 19qwri8qma6psb.hostc.app/swap-riskSwap MEV / sandwich risk estimate + recommended slippage for a proposed trade ($0.005) ($0.005 USDC)$0.005 Baserejecting–0% up
  23. 19tokencheck.madebydevx.com/api/q-verdict/operations/%7Bid%7Dax1-compatible receipt path (free): same as /v1/token/verdict/operations/{id} rejecting–0% up
  24. 19qwri8qma6psb.hostc.app/whale-flowsWhale alerts & smart money exchange flows: large CEX deposits/withdrawals, net inflow/outflow, top movers ($0.02 USDC)$0.02 Baserejecting–0% up
  25. 19shcugph7rdnj.hostc.app/polymarketPolymarket odds / prediction market probabilities by keyword ($0.005 USDC)$0.005 Baserejecting–0% up
  26. 19shcugph7rdnj.hostc.app/crypto-newsCrypto news API with headline sentiment per token / topic ($0.01 USDC)$0.01 Baserejecting–0% up
  27. 19shcugph7rdnj.hostc.app/swap-riskSwap MEV / sandwich risk estimate + recommended slippage for a proposed trade ($0.005) ($0.005 USDC)$0.005 Baserejecting–0% up
  28. 19shcugph7rdnj.hostc.app/healthHealth check rejecting–0% up
  29. 19agent.chiemgaufilms.com/api/v1/wishlistTell us which data tool you would pay for (free) rejecting–0% up
  30. 19qs4c2qffc962.hostc.app/token-safetyHoneypot & rug check / token safety scanner: buy-sell tax, mint, blacklist, proxy, owner, LP lock, holders (ERC-20 on Base, Ethereum, Arbitrum) ($0.03 USDC)$0.03 Baserejecting–0% up
  31. 19qs4c2qffc962.hostc.app/.well-known/x402x402 discovery fan-out rejecting–0% up
  32. 19qs4c2qffc962.hostc.app/address-checkScam / phishing / sanctioned (OFAC) address check before sending funds or approving (AML screening) ($0.005 USDC)$0.005 Baserejecting–0% up
  33. 19ybd3gvw2vq8p.hostc.app/gasGas price / gas fee tracker + forecast for Ethereum, Base, Arbitrum ($0.001, cheapest call) ($0.001 USDC)$0.001 Baserejecting–0% up
  34. 19ybd3gvw2vq8p.hostc.app/address-checkScam / phishing / sanctioned (OFAC) address check before sending funds or approving (AML screening) ($0.005 USDC)$0.005 Baserejecting–0% up
  35. 19ybd3gvw2vq8p.hostc.app/yieldsDeFi yields / best APY finder by asset and chain with risk notes (stablecoin yield, lending, LP) ($0.01 USDC)$0.01 Baserejecting–0% up
  36. 19tokencheck.madebydevx.com/v/%7Bid%7D/card.svgVerdict card image 1200x630 SVG (image_url) rejecting–0% up
  37. 19qs4c2qffc962.hostc.app/unlock-riskToken unlock / vesting risk: next unlock size vs circulating supply, CEX inflows, sell-pressure score ($0.01 USDC)$0.01 Baserejecting–0% up
  38. 19qs4c2qffc962.hostc.app/new-tokensNew token launches feed with auto honeypot / rug screening (new DEX pools, sniping research) ($0.02 USDC)$0.02 Baserejecting–0% up
  39. 19mr-river15.makar52nn2016.workers.dev/api/honeypotHoneypot trust score (paid $0.005)$0.10 Baserejecting–0% up
  40. 19mr-river15.makar52nn2016.workers.dev/api/url-to-textRead any web page as plain text (paid $0.01)$0.02 Baserejecting–0% up
  41. 19counterparty.agentgate.workers.dev/v1/previewFree: verdict, confidence, address kind and flag counts (no reasons), 10/min per IP rejecting–0% up
  42. 19ybd3gvw2vq8p.hostc.app/unlock-riskToken unlock / vesting risk: next unlock size vs circulating supply, CEX inflows, sell-pressure score ($0.01 USDC)$0.01 Baserejecting–0% up
  43. 19ybd3gvw2vq8p.hostc.app/pre-trade-checkPre-trade check / rug check before buying a token: honeypot, token safety, unlocks, whale + smart money flows, one buy/avoid verdict ($0.05 USDC)$0.05 Baserejecting–0% up
  44. 19mr-river15.makar52nn2016.workers.dev/api/crypto-priceLive crypto spot price (paid $0.005)$0.01 Baserejecting–0% up
  45. 19ybd3gvw2vq8p.hostc.app/whale-flowsWhale alerts & smart money exchange flows: large CEX deposits/withdrawals, net inflow/outflow, top movers ($0.02 USDC)$0.02 Baserejecting–0% up
  46. 19kfip57xywqjx.hostc.app/pre-trade-checkPre-trade check / rug check before buying a token: honeypot, token safety, unlocks, whale + smart money flows, one buy/avoid verdict ($0.05 USDC)$0.05 Baserejecting–0% up
  47. 19agent-production-d9d8e.up.railway.app/shop/0-origen/base-token-checkBase token contract check (pre-trade risk flags)$0.005 Baserejecting–0% up
  48. 19ybd3gvw2vq8p.hostc.app/Service metadata and endpoint catalog rejecting–0% up
  49. 19ybd3gvw2vq8p.hostc.app/governanceDAO governance feed: active Snapshot proposals & vote results for Aave, Uniswap, Arbitrum, Optimism, Lido + 25 more ($0.005) ($0.005 USDC)$0.005 Baserejecting–0% up
  50. 19ybd3gvw2vq8p.hostc.app/symbolsCoverage: symbols and chains rejecting–0% up
  51. 19kfip57xywqjx.hostc.app/token-safetyHoneypot & rug check / token safety scanner: buy-sell tax, mint, blacklist, proxy, owner, LP lock, holders (ERC-20 on Base, Ethereum, Arbitrum) ($0.03 USDC)$0.03 Baserejecting–0% up
  52. 19kfip57xywqjx.hostc.app/governanceDAO governance feed: active Snapshot proposals & vote results for Aave, Uniswap, Arbitrum, Optimism, Lido + 25 more ($0.005) ($0.005 USDC)$0.005 Baserejecting–0% up
  53. 19kfip57xywqjx.hostc.app/swap-riskSwap MEV / sandwich risk estimate + recommended slippage for a proposed trade ($0.005) ($0.005 USDC)$0.005 Baserejecting–0% up
  54. 19sj4jf3dyism7.hostc.app/unlocks/upcomingToken unlock calendar: upcoming vesting unlocks in the next N days, sized vs supply ($0.02 USDC)$0.02 Baserejecting–0% up
  55. 19sj4jf3dyism7.hostc.app/new-tokensNew token launches feed with auto honeypot / rug screening (new DEX pools, sniping research) ($0.02 USDC)$0.02 Baserejecting–0% up
  56. 19kfip57xywqjx.hostc.app/token-priceToken price API: real-time DEX price, liquidity, volume, FDV for any ERC-20 (Base, Ethereum, Arbitrum) ($0.005 USDC)$0.005 Baserejecting–0% up
  57. 19kfip57xywqjx.hostc.app/demoList of free sample responses rejecting–0% up
  58. 19api.loyalspark.online/recipient-api/offersCreate P2P swap offer rejecting–0% up
  59. 19kfip57xywqjx.hostc.app/address-checkScam / phishing / sanctioned (OFAC) address check before sending funds or approving (AML screening) ($0.005 USDC)$0.005 Baserejecting–0% up
  60. 19kfip57xywqjx.hostc.app/.well-known/x402x402 discovery fan-out rejecting–0% up
  61. 19api.youraitools.co/x402fix/v1/previewFree: grade, score, status and counts (no fixes), 10/min per IP rejecting–0% up
  62. 19sj4jf3dyism7.hostc.app/approvals-auditToken approvals audit / revoke checker: risky & unlimited ERC-20 allowances for a wallet ($0.01) ($0.01 USDC)$0.01 Baserejecting–0% up
  63. 19mr-river16.makar52nn2016.workers.dev/api/crypto-priceLive crypto spot price (paid $0.005)$0.01 Baserejecting–0% up
  64. 19sj4jf3dyism7.hostc.app/wallet-profileWallet profiler: smart money / exchange / bot label, balances, activity across Ethereum, Base, Arbitrum ($0.05 USDC)$0.05 Baserejecting–0% up
  65. 19sj4jf3dyism7.hostc.app/yieldsDeFi yields / best APY finder by asset and chain with risk notes (stablecoin yield, lending, LP) ($0.01 USDC)$0.01 Baserejecting–0% up
  66. 19sj4jf3dyism7.hostc.app/stablecoin-pegStablecoin depeg monitor: USDC, USDT, DAI, USDe, FDUSD, PYUSD vs $1 ($0.002) ($0.002 USDC)$0.002 Baserejecting–0% up
  67. 19sj4jf3dyism7.hostc.app/mcpMCP endpoint info (POST JSON-RPC for tools/list, tools/call) rejecting–0% up
  68. 19api.loyalspark.online/agent-api/merchant-profileCreate merchant profile rejecting–0% up
  69. 19solverdict.agentgate.workers.dev/v1/previewFree: verdict, score and flag counts (no reasons), 10/min per IP rejecting–0% up
  70. 19sj4jf3dyism7.hostc.app/pre-trade-checkPre-trade check / rug check before buying a token: honeypot, token safety, unlocks, whale + smart money flows, one buy/avoid verdict ($0.05 USDC)$0.05 Baserejecting–0% up
  71. 19sj4jf3dyism7.hostc.app/token-safetyHoneypot & rug check / token safety scanner: buy-sell tax, mint, blacklist, proxy, owner, LP lock, holders (ERC-20 on Base, Ethereum, Arbitrum) ($0.03 USDC)$0.03 Baserejecting–0% up
  72. 19sj4jf3dyism7.hostc.app/tx-explainTransaction explainer / decoder: plain-English swaps, transfers, approvals (flags unlimited approvals) ($0.01 USDC)$0.01 Baserejecting–0% up
  73. 19sentinel.oceaneye-ai.com/x402/verify-permit2-signature-scopePre-signing audit for Uniswap Permit2 allowance signatures: unlimited approval, expiration, deadline, and spender$0.02 Baserejecting–0% up
  74. 19golf-evm-math.x402-evm-math.workers.dev/defi/v2-swapExact integer Uniswap-V2 style swap output, price impact and post-swap reserves$0.002 Baserejecting–0% up
  75. 19golf-evm-math.x402-evm-math.workers.dev/company/financialsCompany financials: revenue, net income, EPS, assets, liabilities, cash, operating cash flow (annual and quarterly)$0.005 Baserejecting–0% up
  76. 19adqe7gavge4j.hostc.app/unlocks/upcomingToken unlock calendar: upcoming vesting unlocks in the next N days, sized vs supply ($0.02 USDC)$0.02 Baserejecting–0% up
  77. 19adqe7gavge4j.hostc.app/polymarketPolymarket odds / prediction market probabilities by keyword ($0.005 USDC)$0.005 Baserejecting–0% up
  78. 19adqe7gavge4j.hostc.app/mcpMCP endpoint info (POST JSON-RPC for tools/list, tools/call) rejecting–0% up
  79. 19adqe7gavge4j.hostc.app/crypto-newsCrypto news API with headline sentiment per token / topic ($0.01 USDC)$0.01 Baserejecting–0% up
  80. 19adqe7gavge4j.hostc.app/pre-trade-checkPre-trade check / rug check before buying a token: honeypot, token safety, unlocks, whale + smart money flows, one buy/avoid verdict ($0.05 USDC)$0.05 Baserejecting–0% up
  81. 19adqe7gavge4j.hostc.app/gasGas price / gas fee tracker + forecast for Ethereum, Base, Arbitrum ($0.001, cheapest call) ($0.001 USDC)$0.001 Baserejecting–0% up
  82. 19adqe7gavge4j.hostc.app/.well-known/x402x402 discovery fan-out rejecting–0% up
  83. 19adqe7gavge4j.hostc.app/approvals-auditToken approvals audit / revoke checker: risky & unlimited ERC-20 allowances for a wallet ($0.01) ($0.01 USDC)$0.01 Baserejecting–0% up
  84. 19adqe7gavge4j.hostc.app/Service metadata and endpoint catalog rejecting–0% up
  85. 19sentinel.oceaneye-ai.com/x402/verify-cardano-eutxo-conservationCardano eUTxO value conservation, multi-asset balance, minUTxO compliance, and Plutus double satisfaction audit$0.03 Baserejecting–0% up
  86. 19adqe7gavge4j.hostc.app/address-checkScam / phishing / sanctioned (OFAC) address check before sending funds or approving (AML screening) ($0.005 USDC)$0.005 Baserejecting–0% up
  87. 19adqe7gavge4j.hostc.app/tools.jsonMCP-style tool definitions rejecting–0% up
  88. 19golf-evm-math.x402-evm-math.workers.dev/company/lookupCompany enrichment from SEC EDGAR: resolve ticker/CIK/name to legal name, exchange, SIC, state, HQ, phone, EIN$0.0022 Baserejecting–0% up
  89. 19sentinel.oceaneye-ai.com/x402/verify-mev-sandwich-boundAnalytical binary-search MEV sandwich profitability bound and optimal frontrun/backrun impact verification$0.02 Baserejecting–0% up
  90. 19golf-evm-math.x402-evm-math.workers.dev/company/eventsRecent SEC 8-K events: earnings, executive changes, acquisitions, delistings, dilution$0.0033 Baserejecting–0% up
  91. 19golf-evm-math.x402-evm-math.workers.dev/evm/decodeDecode EVM calldata (0x...) into function signature and typed arguments using a built-in table of ~60 common ERC20/721/1155, Uniswap, Aave signatures, or a supplied signature=name(types).$0.002 Baserejecting–0% up
  92. 19mr-river16.makar52nn2016.workers.dev/api/usd-priceMulti-asset USD price snapshot in one call (paid $0.005)$0.02 Baserejecting–0% up
  93. 19api.youraitools.co/agentready/v1/previewFree: score, grade, category scores and counts (no findings or fixes), 10/min per IP rejecting–0% up
  94. 19agents.avasis.ai/v1/base/research-rails-retainer/status/%7Btoken%7DResearch + Rails Retainer (1 month) purchase status (free) rejecting–0% up
  95. 19sentinel.oceaneye-ai.com/x402/verify-forensic-graphOn-chain and PSP forensic graph engine: Tarjan cyclic loop collapse, Jupiter Lend receipt handover, bridge hop correlation, and taint propagation$0.05 Baserejecting–0% up
  96. 19mr-river17.makar52nn2016.workers.dev/api/crypto-newsTop crypto headlines (paid $0.005)$0.02 Baserejecting–0% up
  97. 19api.youraitools.co/solverdict/v1/previewFree: verdict, score and flag counts (no reasons), 10/min per IP rejecting–0% up
  98. 19leakguard.agentgate.workers.dev/v1/previewFree: verdict, safe_to_send, max severity and counts by type (no positions or redacted text), text <= 8 KB, 10/min per IP rejecting–0% up
  99. 19mr-river17.makar52nn2016.workers.dev/api/bountiesFunded bounty feed (paid $0.005)$0.10 Baserejecting–0% up
  100. 19logicnodes.io/v1/tools/token_amount_convertConvert token amounts rejecting–0% up