x402watch

52,778 paid endpoints are listed. 41,522 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 06:38 UTC · 52,778 probed

41,522 answering 4025,071 down5,452 rejecting733 no paywall944 price drift
  1. 59saylorinnovations.com/api/token-price/solana/:solana_addressSolana token price by mint - USD price, changes, liquidity, volume and FDV$0.01 Basedown2 payers37% up
  2. 59deepcounterfeit.com/v1/x402/token/:addressDeepCounterfeit real-time impersonation check for So11111111111111111111111111111111111111112$0.01 Basedown1 payers40% up
  3. 59saylorinnovations.com/api/registry/maven/junit/:groupIdMaven Central artifact info - latest release version, recent versions, licenses, description and ready-to-paste dependency snippet$0.01 Basedown1 payers37% up
  4. 59saylorinnovations.com/api/evm/bsc/nonce/:addressEVM Nonce (bsc). BNB Chain (BSC) account nonce for any address: confirmed nonce and pending nonce (a gap means transactions are still waiting in the mempool). Use it before sending a transaction or to detect a pending one.$0.01 Basedown1 payers37% up
  5. 59saylorinnovations.com/api/evm/polygon/tx/:hashPolygon transaction details - status, from/to, value, gas used, fee, event count and method selector$0.01 Basedown1 payers37% up
  6. 59saylorinnovations.com/api/token-price/bsc/:addressBNB Chain token price by contract address - USD price, changes, liquidity, volume and FDV$0.01 Basedown1 payers37% up
  7. 59saylorinnovations.com/api/token-price/base/:addressBase token price by contract address - USD price, changes, liquidity, volume and FDV$0.01 Basedown1 payers37% up
  8. 59saylorinnovations.com/api/evm/bsc/tx/:hashBNB Chain transaction details - status, from/to, value, gas used, fee, event count and method selector$0.01 Basedown1 payers37% up
  9. 59saylorinnovations.com/api/evm/bsc/allowance/:address/:address2/:address3BNB Chain BEP-20 allowance - how much a spender can move from an owner, with unlimited-approval flag$0.01 Basedown1 payers37% up
  10. 59saylorinnovations.com/api/evm/ethereum/nfts/:address/:address2NFTs a wallet holds in a collection (ERC-721 Enumerable) - balance and token ids, on 5 EVM chains$0.01 Basedown1 payers37% up
  11. 59saylorinnovations.com/api/evm/polygon/nonce/:addressPolygon account nonce - confirmed and pending transaction count for any address$0.01 Basedown1 payers37% up
  12. 59saylorinnovations.com/api/evm/polygon/allowance/:address/:address2/:address3Polygon ERC-20 allowance - how much a spender can move from an owner, with unlimited-approval flag$0.01 Basedown1 payers37% up
  13. 59saylorinnovations.com/api/evm/optimism/nonce/:addressOptimism account nonce - confirmed and pending transaction count for any address$0.01 Basedown1 payers37% up
  14. 59saylorinnovations.com/api/evm/optimism/tx/:hashOptimism transaction details - status, from/to, value, gas used, fee, event count and method selector$0.01 Basedown1 payers37% up
  15. 59saylorinnovations.com/api/evm/optimism/allowance/:address/:address2/:address3Optimism ERC-20 allowance - how much a spender can move from an owner, with unlimited-approval flag$0.01 Basedown1 payers37% up
  16. 59saylorinnovations.com/api/evm/arbitrum/nonce/:addressArbitrum account nonce - confirmed and pending transaction count for any address$0.01 Basedown1 payers37% up
  17. 59saylorinnovations.com/api/evm/arbitrum/allowance/:address/:address2/:address3Arbitrum ERC-20 allowance - how much a spender can move from an owner, with unlimited-approval flag$0.01 Basedown1 payers37% up
  18. 59saylorinnovations.com/api/evm/ethereum/nonce/:addressEthereum account nonce - confirmed and pending transaction count for any address$0.01 Basedown1 payers37% up
  19. 59saylorinnovations.com/api/evm/base/nonce/:addressBase account nonce - confirmed and pending transaction count for any address$0.01 Basedown1 payers37% up
  20. 59saylorinnovations.com/api/evm/base/tx/:hashBase transaction details - status, from/to, value, gas used, fee, event count and method selector$0.01 Basedown1 payers37% up
  21. 59saylorinnovations.com/api/evm/ethereum/allowance/:address/:address2/:address3Ethereum ERC-20 allowance - how much a spender can move from an owner, with unlimited-approval flag$0.01 Basedown1 payers37% up
  22. 59saylorinnovations.com/api/evm/base/allowance/:address/:address2/:address3Base ERC-20 allowance - how much a spender can move from an owner, with unlimited-approval flag$0.01 Basedown1 payers37% up
  23. 59saylorinnovations.com/api/stocks/quote/:symbolStock quote for any ticker (US stocks, ETFs, indices) - price, change, day and 52-week range and volume$0.01 Basedown1 payers37% up
  24. 59saylorinnovations.com/api/evm/bsc/contract/:addressSend a BNB Chain address, get whether it is a wallet or a contract, proxy detection, bytecode size and BEP-20 name, symbol and supply.$0.01 Basedown1 payers37% up
  25. 59saylorinnovations.com/api/water/usgs/:siteUSGS river gauge reading - latest streamflow, gage height and water temperature for a USGS site number with 2-hour change$0.01 Basedown1 payers37% up
  26. 59saylorinnovations.com/api/polygon/token/:addressPolygon token verdict - send a token contract address, get a 0-100 risk score: is it a scam or honeypot, buy/sell tax, owner privileges, liquidity$0.01 Basedown1 payers37% up
  27. 59saylorinnovations.com/api/arbitrum/token/:addressArbitrum token verdict - send a token contract address, get a 0-100 risk score: is it a scam or honeypot, buy/sell tax, owner privileges, liquidity$0.01 Basedown1 payers37% up
  28. 59saylorinnovations.com/api/ethereum/token/:addressEthereum token verdict - send a token contract address, get a 0-100 risk score: is it a scam or honeypot, buy/sell tax, owner privileges, liquidity$0.01 Basedown1 payers37% up
  29. 59saylorinnovations.com/api/base/token/:addressBase token verdict - send a token contract address, get a 0-100 risk score: is it a scam or honeypot, buy/sell tax, owner privileges, liquidity$0.01 Basedown1 payers37% up
  30. 59api.macaroonnetwork.com/execute/polymathica-archive-record-v1Polymathica Archive Evidence Record$0.003 Basedown–50% up
  31. 59api.macaroonnetwork.com/execute/vortx-pinn-v1VortX PINN$29.00 Basedown–50% up
  32. 57mcp.x-ray.me/x402/get_scope_metricsX-RAY get_scope_metrics: daily metric series for the market, a chain or a sector$0.005 Basedown1 payers53% up
  33. 57mcp.x-ray.me/x402/get_scopeX-RAY get_scope: the state of the market, one chain or one sector$0.005 Basedown1 payers53% up
  34. 57mcp.x-ray.me/x402/list_actorsX-RAY list_actors: the actors directory with facets, filters and sorting$0.01 Basedown1 payers53% up
  35. 57mcp.x-ray.me/x402/get_actorX-RAY get_actor: one actor's full card (header, cards, latest moves) or one tab$0.005 Basedown1 payers53% up
  36. 57mcp.x-ray.me/x402/search_entitiesX-RAY search_entities: resolve a name or ticker to actors, chains and sectors$0.001 Basedown1 payers53% up
  37. 57saylorinnovations.com/api/token-price/ethereum/:addressCrypto token price by contract on any chain - USD price, 1h/6h/24h change, liquidity, volume and FDV$0.01 Basedown1 payers33% up
  38. 57saylorinnovations.com/api/evm/ethereum/erc1155-balance/:address/:address2/1ERC-1155 balance - how many copies of a token id a wallet holds, on 5 EVM chains$0.01 Basedown1 payers33% up
  39. 57saylorinnovations.com/api/evm/polygon/storage/:address/0Polygon contract storage slot - raw 32-byte value with uint and address decodings$0.01 Basedown1 payers33% up
  40. 57saylorinnovations.com/api/evm/arbitrum/storage/:address/0Arbitrum contract storage slot - raw 32-byte value with uint and address decodings$0.01 Basedown1 payers33% up
  41. 57saylorinnovations.com/api/evm/ethereum/storage/:address/0Ethereum contract storage slot - raw 32-byte value with uint and address decodings$0.01 Basedown1 payers33% up
  42. 57saylorinnovations.com/api/evm/base/storage/:address/0Base contract storage slot - raw 32-byte value with uint and address decodings$0.01 Basedown1 payers33% up
  43. 57saylorinnovations.com/api/evm/optimism/transfers/:addressToken Transfer History (optimism). Optimism token transfer history: ERC-20 and ERC-721 Transfer events for a token, filtered to one wallet (?wallet=, in/out labelled, up to 2,000 blocks) or the latest 20 blocks unfiltered. Decoded amounts, up to 200 rows.$0.01 Basedown1 payers37% up
  44. 57saylorinnovations.com/api/evm/optimism/balance/:addressOptimism wallet balance - native ETH plus up to 20 ERC-20 token balances in one call$0.01 Basedown1 payers37% up
  45. 57saylorinnovations.com/api/evm/ethereum/transfers/:addressToken Transfer History (ethereum). Ethereum token transfer history: ERC-20 and ERC-721 Transfer events for a token, filtered to one wallet (?wallet=, in/out labelled, up to 2,000 blocks) or the latest 20 blocks unfiltered. Decoded amounts, up to 200 rows.$0.01 Basedown1 payers37% up
  46. 57saylorinnovations.com/api/evm/base/events/:addressSend a Base contract address, get its raw event logs, filterable by topic, newest first.$0.01 Basedown1 payers37% up
  47. 57saylorinnovations.com/api/evm/base/transfers/:addressToken Transfer History (base). Base token transfer history: ERC-20 and ERC-721 Transfer events for a token, filtered to one wallet (?wallet=, in/out labelled, up to 2,000 blocks) or the latest 20 blocks unfiltered. Decoded amounts, up to 200 rows.$0.01 Basedown1 payers37% up
  48. 57saylorinnovations.com/api/evm/optimism/events/:addressOptimism contract event logs - raw logs for a contract, filterable by event topic, newest first$0.01 Basedown1 payers37% up
  49. 57saylorinnovations.com/api/bnb/token/:addressBNB Chain token risk score and honeypot check from a BEP-20 contract address, with every deduction explained$0.01 Basedown1 payers33% up
  50. 57saylorinnovations.com/api/optimism/token/:addressOptimism token verdict - send a token contract address, get a 0-100 risk score: is it a scam or honeypot, buy/sell tax, owner privileges, liquidity$0.01 Basedown1 payers33% up
  51. 56toll402.dev/v1/t/cin_in_validateOffline structural validator for an Indian CIN (Corporate Identity Number, 21 characters). Parses and checks: listing status letter (L/U), 5-digit NIC industry code, 2-letter state code (against the known MCA state-code list), 4-digit incorporation year (plausible range), 3-letter company-type/ownership code (against a known enum like PLC, PTC, OPC, GOI, NPL, FTC, SGC, ULL, ULT), and 6-digit registration number. No checksum exists so this is a format-only check.$0.001 Basedown7 payers43% up
  52. 56saylorinnovations.com/api/crypto/token-verdict/:addressIs this token a scam? Send any token address on Base, Ethereum, BNB, Arbitrum, Polygon, Optimism or Solana for a verdict, 0-100 score, honeypot and rug check.$0.01 Basedown1 payers40% up
  53. 56saylorinnovations.com/api/species/taxonomy/:taxonNCBI Taxonomy lookup by tax id or scientific name - rank, common name, named lineage, genome assembly count, gene counts and child taxa$0.01 Basedown1 payers40% up
  54. 56saylorinnovations.com/api/registry/snap/:nameSnap Store package lookup - publisher and verification, licence, stable version and every channel (stable, candidate, beta, edge) with release times$0.01 Basedown1 payers40% up
  55. 56saylorinnovations.com/api/registry/flathub/:idFlathub Linux app lookup - latest version and release date, licence, developer, categories, runtime, total installs and installs in the last 30 days$0.01 Basedown1 payers40% up
  56. 56saylorinnovations.com/api/registry/cpan/:distCPAN Perl distribution lookup - latest version, abstract, author, licence, runtime dependencies, downstream dependents and open issues from MetaCPAN$0.01 Basedown1 payers40% up
  57. 56saylorinnovations.com/api/registry/arch/:nameArch Linux package info across the official repos and the AUR - version, repo, size, dependencies, out-of-date flag, AUR votes and popularity$0.01 Basedown1 payers40% up
  58. 56saylorinnovations.com/api/rail/finland/station/:codeUpcoming passenger train departures at any Finnish station - train, destination, scheduled and estimated time, delay minutes, track and cancellations$0.01 Basedown1 payers40% up
  59. 56saylorinnovations.com/api/india/ifsc/:codeIndian bank branch details from an IFSC code - bank, branch, address, city, state, MICR, SWIFT, and NEFT, RTGS, IMPS and UPI support$0.01 Basedown1 payers40% up
  60. 55api.brazilayer.com/v1/cnpj/empresa/:cnpj/sociosPartners and shareholders (socios) of a Brazilian company from the official Receita Federal CNPJ registry: partner name, type (individual/company/foreign), masked tax document (CPF comes pre-masked from the government source), role/qualification, entry date and age bracket. Useful for KYB and ownership checks. Free sample, no payment: https://api.brazilayer.com/v1/cnpj/amostra$0.005 Basedown1 payers50% up
  61. 55mcp.x-ray.me/x402/list_narrativesX-RAY list_narratives: all narratives of the Landscape layer with today's metrics$0.01 Basedown1 payers41% up
  62. 55mcp.x-ray.me/x402/vacancy_stats_by_skillX-RAY vacancy_stats_by_skill: open roles per skill cluster$0.005 Basedown1 payers41% up
  63. 55mcp.x-ray.me/x402/company_hiring_activityX-RAY company_hiring_activity: one actor's hiring over time$0.005 Basedown1 payers41% up
  64. 55mcp.x-ray.me/x402/top_hiring_companiesX-RAY top_hiring_companies: actors with the most open roles$0.005 Basedown1 payers41% up
  65. 55mcp.x-ray.me/x402/compareX-RAY compare: side-by-side metrics for up to four actors, chains or sectors$0.01 Basedown1 payers41% up
  66. 55saylorinnovations.com/api/evm/base/balance/:addressERC20 token balance for any Base wallet - USDC, WETH or any token via balanceOf, plus native ETH, up to 20 tokens in one call$0.01 Basedown1 payers33% up
  67. 55saylorinnovations.com/api/evm/bsc/transfers/:addressBNB Chain BEP-20 token transfer history - decoded Transfer events, filterable to one wallet$0.01 Basedown1 payers33% up
  68. 55api.traverseengine.com/v1/reports/jupiter-lendFinalized Jupiter Lend liquidation research report across Solana vaults 13 and 58. Includes executed repayments, failed attempts, fees, and provider-index coverage.$0.01 Solanadown1 payers33% up
  69. 55hdkp09cw9d.execute-api.us-east-1.amazonaws.com/v1/reports/jupiter-lendFinalized Jupiter Lend liquidation research report across Solana vaults 13 and 58. Includes executed repayments, failed attempts, fees, and provider-index coverage.$0.01 Solanadown1 payers33% up
  70. 54readfetch.com/v1/scrape/residentialIdentical request and response to /v1/scrape, but the render leaves through a residential address instead of the datacentre. For targets that block by IP reputation (DataDome, PerimeterX, Cloudflare, AWS WAF). One attempt, no retries: residential bandwidth is the cost, and four times the scrape price is what it takes to cover it honestly. Prefer readfetch_scrape when datacentre egress works; use readfetch_residential only after readfetch_scrape fails or readfetch_probe report$0.02 Basedown2 payers31% up
  71. 54readfetch.com/v1/scrapeLoad a public URL in headless Chromium and return Markdown, plain text, or HTML (`format`, plus status_code, title, cache_status, billed; optional links via `advanced.include_links`). `mode` sets latency and depth: fast (15 s, minimal render), render (30 s, default, full JS), full (60 s, scroll the page). `fresh: true` bypasses cache. Put scroll, wait_for, js_code, headers, cookies, and auth in `advanced` (`options` is deprecated, same shape). Prefer readfetch_text when JavaS$0.005 Basedown1 payers31% up
  72. 54saylorinnovations.com/api/evm/optimism/contract/:addressSend an Optimism address, get whether it is a wallet or a contract, proxy detection, bytecode size and ERC-20 name, symbol and supply.$0.01 Basedown1 payers37% up
  73. 54saylorinnovations.com/api/evm/arbitrum/tx/:hashEVM Transaction Details (arbitrum). Arbitrum transaction details: status, from/to, value, block, nonce, gas used, total fee (incl. L1 data fee on OP-stack chains), event count and method selector.$0.01 Basedown1 payers37% up
  74. 54saylorinnovations.com/api/evm/arbitrum/contract/:addressArbitrum contract introspection - wallet vs contract, proxy detection, bytecode size and ERC-20 name, symbol and supply$0.01 Basedown1 payers37% up
  75. 54saylorinnovations.com/api/evm/ethereum/tx/:hashEVM Transaction Details (ethereum). Ethereum transaction details: status, from/to, value, block, nonce, gas used, total fee, event count and method selector.$0.01 Basedown1 payers37% up
  76. 54saylorinnovations.com/api/evm/ethereum/contract/:addressEthereum contract introspection - wallet vs contract, proxy detection, bytecode size and ERC-20 name, symbol and supply$0.01 Basedown1 payers37% up
  77. 54saylorinnovations.com/api/evm/base/contract/:addressBase contract introspection - wallet vs contract, proxy detection, bytecode size and ERC-20 name, symbol and supply$0.01 Basedown1 payers37% up
  78. 54saylorinnovations.com/api/india/pincode/:pinIndia PIN code lookup - district, state, region and the post offices for any 6-digit pincode$0.01 Basedown1 payers37% up
  79. 54saylorinnovations.com/api/india/mutual-fund/:codeIndian mutual fund NAV - latest NAV, fund house, category and 1, 3 and 5 year returns for any AMFI scheme code$0.01 Basedown1 payers37% up
  80. 54how.is/v1/domain/dnsA, AAAA, MX, NS, TXT and other records for a domain, with resolve timing.$0.005 Basedown1 payers31% up
  81. 54forge-tools.dentreprise.workers.dev/api/fr-legal-statusFrench company legal status by SIREN/SIRET: Sirene administrative status (active/ceased, closure date, legal form, NAF, head office) plus BODACC collective proceedings (sauvegarde, redressement, liquidation judiciaire, clôture) with latest stage, ongoing flag and risk level.$0.003 Basedown1 payers40% up
  82. 54forge-tools.dentreprise.workers.dev/api/supplier-due-diligenceSupplier due diligence for any company name (optionally VAT number and country): VIES VAT check, GLEIF LEI candidates with entity and registration status, and sanctions screening (OFAC, EU, FR, UK), with a pass/review/fail verdict and flags.$0.01 Basedown1 payers40% up
  83. 54ziggylookups.thaboss216.workers.dev/v1/moltbook/agentPaid Moltbook Agent$0.02 Basedown–50% up
  84. 53softbot-screenshot-mainnet.softbot.workers.dev/v1/pdfRender a web page to PDF$0.01 Solanadown7 payers38% up
  85. 53mcp.x-ray.me/x402/list_recent_eventsX-RAY list_recent_events: recent events across actors, filterable by kind, chain, sector and actor kind$0.005 Basedown1 payers47% up
  86. 53mcp.x-ray.me/x402/list_scopesX-RAY list_scopes: all chains or all sectors with their headline numbers$0.005 Basedown1 payers47% up
  87. 52saylorinnovations.com/api/evm/bsc/storage/:address/0BNB Chain contract storage slot - raw 32-byte value with uint and address decodings$0.01 Basedown1 payers33% up
  88. 52saylorinnovations.com/api/evm/ethereum/nft-metadata/:address/1Send an NFT contract address and token ID, get ERC-721 or ERC-1155 metadata: tokenURI resolved, parsed JSON and image URL, on 5 EVM chains.$0.01 Basedown1 payers33% up
  89. 52saylorinnovations.com/api/evm/ethereum/nft-owner/:address/1NFT owner of an ERC-721 token (ownerOf) on Base, Ethereum, Arbitrum, Optimism or Polygon$0.01 Basedown1 payers33% up
  90. 52saylorinnovations.com/api/evm/polygon/contract/:addressSend a Polygon address, get whether it is a wallet or a contract, proxy detection, bytecode size and ERC-20 name, symbol and supply.$0.01 Basedown1 payers33% up
  91. 52saylorinnovations.com/api/evm/optimism/storage/:address/0Optimism contract storage slot - raw 32-byte value with uint and address decodings$0.01 Basedown1 payers33% up
  92. 52saylorinnovations.com/api/evm/ethereum/events/:addressSend an Ethereum contract address, get its raw event logs, filterable by topic, newest first.$0.01 Basedown1 payers37% up
  93. 51mcp.x-ray.me/x402/salary_statsX-RAY salary_stats: salary ranges grouped by sector, grade, blockchain or category$0.005 Basedown1 payers35% up
  94. 51mcp.x-ray.me/x402/get_company_metricsX-RAY get_company_metrics: daily metric series of one actor$0.005 Basedown1 payers35% up
  95. 51saylorinnovations.com/api/evm/ethereum/block/:numberEthereum block by number or latest - hash, time, transaction count, gas used, base fee and miner$0.01 Basedown1 payers23% up
  96. 49stablevoice.dev/api/recording-tokensMint a browser recording URL for a StableUpload slot. The recordee speaks optional suggestedText; StableVoice transcodes the audio to MP3 and uploads it to the slot. Use the slot publicUrl as /api/speech referenceAudioUrl. Pass uploadUrlExpiresAt as expiresAt so the recording URL cannot outlive the upload.$0.01 Basedown1 payers40% up
  97. 49x402.nexari.cloud/company/searchB2B only. Paying accepts AGB/terms https://x402.nexari.cloud/legal/agb/58bf28adb3823f1418b74e12f1995e5e8629ccbf6fb7d73b6174355c14f1411f. business_name required. Firmenauskunft DE: Unternehmen nach Namen suchen, liefert Firmen-ID, Registernummer, Gericht. German Company Lookup: search German companies by name. Quelle: Registerdaten via OpenRegister, kein amtlicher Auszug. Source: German register data via OpenRegister, not an official extract.$0.02 Basedown1 payers40% up
  98. 49saylorinnovations.com/api/registry/debian/:nameDebian source package lookup - version in every suite (stable, testing, sid), version count, VCS link, tracker URL and lines of code by language$0.01 Basedown1 payers29% up
  99. 49mcp.whitemagic.dev/mcpWhiteMagic hosted recall — agent memory for cross-session continuity: read-only hybrid search (BM25 + vector + associative) over a curated public corpus. Call when an agent needs durable context from prior sessions or the public knowledge store. Keyless discovery (initialize/tools/list) is free; free evaluation keys and a daily no-key trial are available. One paid tool call per payment.$0.002 Basedown1 payers23% up
  100. 48mcp.x-ray.me/x402/get_narrativeX-RAY get_narrative: one narrative: definition, metrics, series, members and news$0.005 Basedown1 payers29% up