x402watch

53,113 paid endpoints are listed. 31,940 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 2026-10-05 15:08 UTC · 53,113 probed

31,940 answering 40215,003 down5,345 rejecting825 no paywall1,219 price drift
  1. 90agent402.tools/v1/pro/audio/transcriptionsOpenAI's transcription wire on the ten-minute tier: POST multipart/form-data with a `file` part. Same model as /v1/audio/transcriptions with a longer cap, for a recording a four-minute route refuses.$0.10 Base1356 ms1 payers100% up
  2. 90agent402.tools/v1/audio/transcriptionsOpenAI's own transcription wire: POST multipart/form-data with a `file` part and get the transcript back. Point any Whisper-shaped SDK at this gateway and pay per call with USDC, no account and no API key. Same model and same four-minute cap as /api/transcribe, which takes a URL instead of an upload; /v1/pro/audio/transcriptions takes it to ten minutes.$0.03 Base1364 ms1 payers100% up
  3. 90api.vextorium.com/v1/gas-priceGas prices$0.003 Base175 ms1 payers83% up
  4. 90api.vextorium.com/dominio-pagoDomain intelligence: WHOIS (registrar, creation and expiry dates), DNS records and SSL certificate details.$0.02 Base333 ms1 payers92% up
  5. 90api.vextorium.com/limpiar-datos-pagoCSV cleaning and normalization to JSON: column names, types, duplicates and empty values. Data is processed in memory and not stored.$0.02 Base331 ms1 payers92% up
  6. 90api.vextorium.com/ens-pagoENS resolution on Ethereum: name to address (vitalik.eth -> 0x...) or address to primary name, with round-trip verification of reverse records.$0.004 Base303 ms1 payers92% up
  7. 90api.vextorium.com/v1/malicious-urlMalicious URL check (URLhaus)$0.002 Base182 ms1 payers83% up
  8. 90api.vextorium.com/v1/my-ipWhat is my IP$0.001 Base156 ms1 payers83% up
  9. 90api.vextorium.com/v1/central-bank-pressCentral bank & regulator press releases$0.003 Base174 ms1 payers83% up
  10. 90api.vextorium.com/v1/company-enrichCompany profile from its domain, without personal data: website title and description, social profiles, technologies used, email provider, domain age and registrar, SSL certificate and hosting country. Qualify B2B leads or vet a supplier.$0.006 Base191 ms1 payers83% up
  11. 90api.vextorium.com/v1/solana-wallet-profileSolana wallet profile & flags$0.004 Base188 ms1 payers83% up
  12. 90api.vextorium.com/v1/gas-historyGas fee history & tip advice (12 chains)$0.003 Base175 ms1 payers83% up
  13. 90api.vextorium.com/v1/contract-address-predictPredict contract address (CREATE/CREATE2)$0.003 Base158 ms1 payers83% up
  14. 90api.vextorium.com/v1/abi-decodeDecode EVM calldata (transaction input) with the function signature or, if omitted, by looking up the selector on 4byte; or decode return data with its output types (e.g. uint256,address).$0.003 Base172 ms1 payers83% up
  15. 90api.vextorium.com/v1/abi-encodeEncode contract calldata (ABI)$0.003 Base161 ms1 payers83% up
  16. 90api.vextorium.com/v1/solana-signature-verifyVerify a Solana signature$0.003 Base168 ms1 payers83% up
  17. 90api.vextorium.com/v1/siwe-verifyVerify a Sign-In with Ethereum (EIP-4361) login: parses domain, address, chain, nonce and dates, checks the signature and expiry, and optionally the expected domain and nonce. Authenticate users or agents by wallet.$0.003 Base175 ms1 payers83% up
  18. 90api.vextorium.com/v1/evm-signature-verifyVerify an Ethereum signature$0.003 Base178 ms1 payers83% up
  19. 90api.vextorium.com/v1/lending-yieldsLending yields (Aave, Morpho, Compound...)$0.004 Base153 ms1 payers83% up
  20. 90api.vextorium.com/v1/crypto-convertCrypto & fiat converter$0.003 Base169 ms1 payers83% up
  21. 90api.vextorium.com/v1/x402-searchSearch x402 paid services in the Bazaar by keyword (e.g. weather, solana, search) ranked by real usage, with price, networks and ready-to-pay URL. Lets an agent find the service it needs.$0.003 Base160 ms1 payers83% up
  22. 90api.vextorium.com/v1/x402-trendingMost used x402 services$0.004 Base167 ms1 payers83% up
  23. 90api.vextorium.com/v1/hyperliquid-basisBasis of Hyperliquid perpetuals: mark vs oracle (spot) price in basis points, premium, hourly and annualized funding and open interest; ranked by funding extremes or for one asset. For basis and cash-and-carry strategies.$0.004 Base164 ms1 payers83% up
  24. 90api.vextorium.com/v1/polymarket-crypto-oddsImplied probability distribution of a crypto price from Polymarket ladder markets ("Will BTC be above X on date D?"): probability for each price level and date and the implied median. BTC, ETH, SOL, XRP.$0.004 Base156 ms1 payers83% up
  25. 90api.vextorium.com/v1/polymarket-historyHow the probability of a Polymarket outcome moved over the last hour, day, week, month or all time, with max, min and change in percentage points.$0.004 Base189 ms1 payers83% up
  26. 90api.vextorium.com/v1/polymarket-marketDetail of one Polymarket market by slug or id: question, resolution rules and source, outcome probabilities, best bid/ask, last price, volume, liquidity and dates.$0.004 Base156 ms1 payers83% up
  27. 90api.vextorium.com/v1/polymarket-marketsPolymarket markets & probabilities$0.004 Base144 ms1 payers83% up
  28. 90api.vextorium.com/v1/ton-dnsTON DNS resolver (.ton)$0.003 Base142 ms1 payers83% up
  29. 90api.vextorium.com/v1/ton-jetton-infoProfile of a TON jetton (token): name, symbol, description, decimals, supply, whether more can be minted, admin and scam flag.$0.003 Base155 ms1 payers83% up
  30. 90api.vextorium.com/v1/tron-token-infoProfile of a Tron TRC-20 token read from its contract: name, symbol, decimals and total supply.$0.003 Base144 ms1 payers83% up
  31. 90api.vextorium.com/v1/tron-transfer-costTron USDT transfer cost$0.003 Base168 ms1 payers83% up
  32. 90api.vextorium.com/v1/solana-rentSolana rent-exempt minimum$0.003 Base156 ms1 payers83% up
  33. 90api.vextorium.com/v1/solana-token-supplyTotal supply of a Solana token with decimals, mint authority, freeze authority and token program.$0.003 Base158 ms1 payers83% up
  34. 90api.vextorium.com/v1/solana-token-balanceBalance of one SPL or Token-2022 token in a Solana wallet, with decimals and number of token accounts.$0.003 Base167 ms1 payers83% up
  35. 90api.vextorium.com/v1/solana-slotSolana slot & recent blockhash$0.003 Base164 ms1 payers83% up
  36. 90api.vextorium.com/v1/evm-eth-callRun a read-only eth_call with pre-encoded hex calldata and get the raw result split into 32-byte words, or the revert reason. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.$0.003 Base164 ms1 payers83% up
  37. 90api.vextorium.com/v1/proxy-detectUpgradeable proxy detector$0.003 Base155 ms1 payers83% up
  38. 90api.vextorium.com/v1/erc20-transfersERC-20 transfers (token or wallet)$0.004 Base145 ms1 payers83% up
  39. 90api.vextorium.com/v1/evm-chain-statusChain status (12 chains)$0.003 Base153 ms1 payers83% up
  40. 90api.vextorium.com/v1/erc1155-balanceERC-1155 balance$0.003 Base157 ms1 payers83% up
  41. 90api.vextorium.com/v1/nfts-of-walletToken ids of an ERC-721 collection held by a wallet (tokenOfOwnerByIndex on enumerable collections) and the total count. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.$0.003 Base154 ms1 payers83% up
  42. 90api.vextorium.com/v1/nft-ownerCurrent owner of an ERC-721 NFT by token_id (ownerOf), with collection name and tokenURI. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.$0.003 Base140 ms1 payers83% up
  43. 90api.vextorium.com/v1/evm-live-balancesLive wallet balances (native + 20 tokens)$0.003 Base151 ms1 payers83% up
  44. 90api.vextorium.com/v1/evm-storageRead contract storage slot (12 chains)$0.003 Base150 ms1 payers83% up
  45. 90api.vextorium.com/v1/evm-estimate-gasEstimate the gas a transaction will use (eth_estimateGas) and its cost at the current gas price, or the revert reason if it would fail. Nothing is sent. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.$0.003 Base166 ms1 payers83% up
  46. 90api.vextorium.com/v1/evm-is-contractIs it a contract? (12 chains)$0.003 Base151 ms1 payers83% up
  47. 90api.vextorium.com/v1/evm-receiptTransaction receipt & logs (12 chains)$0.003 Base160 ms1 payers83% up
  48. 90api.vextorium.com/v1/evm-transactionTransaction details (12 chains)$0.003 Base170 ms1 payers83% up
  49. 90api.vextorium.com/v1/evm-token-supplyToken total supply (12 chains)$0.003 Base169 ms1 payers83% up
  50. 90api.vextorium.com/v1/evm-nonceConfirmed and pending nonce of a wallet, next nonce to use and transactions waiting in the mempool. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.$0.003 Base143 ms1 payers83% up
  51. 90api.vextorium.com/v1/evm-blockBlock header by number, hex or tag (latest, safe, finalized): hash, parent, time, producer, gas used and limit, base fee, transaction count and optionally the tx hashes. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.$0.003 Base152 ms1 payers83% up
  52. 90api.vextorium.com/v1/evm-block-numberCurrent block height (chain tip) with block time and age in seconds. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.$0.003 Base158 ms1 payers83% up
  53. 90api.vextorium.com/v1/roman-numeralsRoman numeral converter$0.003 Base157 ms1 payers83% up
  54. 90api.vextorium.com/v1/timezone-by-coordinatesTime zone from coordinates$0.003 Base160 ms1 payers83% up
  55. 90api.vextorium.com/v1/email-providerEmail provider of a domain$0.003 Base155 ms1 payers83% up
  56. 90api.vextorium.com/v1/wayback-snapshotWayback Machine snapshot$0.003 Base156 ms1 payers83% up
  57. 90api.vextorium.com/v1/cve-infoCVE / GHSA vulnerability details$0.003 Base167 ms1 payers83% up
  58. 90api.vextorium.com/v1/package-vulnerabilitiesKnown vulnerabilities of a software package (npm, PyPI, Go, Maven, crates.io, NuGet, RubyGems, Packagist...) at a given version or overall: CVE/GHSA ids, summary, severity, publication date and fixed versions. Google's OSV.dev database.$0.004 Base150 ms1 payers83% up
  59. 90api.vextorium.com/v1/docker-imageDocker Hub image info$0.003 Base155 ms1 payers83% up
  60. 90api.vextorium.com/v1/crate-packageRust crate profile from crates.io: version, description, license, repository, docs, total and recent downloads, minimum Rust version, keywords and dates.$0.003 Base157 ms1 payers83% up
  61. 90api.vextorium.com/v1/pypi-packagePyPI package info$0.003 Base158 ms1 payers83% up
  62. 90api.vextorium.com/v1/npm-packagenpm package profile: latest version, description, license, repository, dependencies, unpacked size, weekly and monthly downloads, maintainers and deprecation flag. For dependency choice and audits.$0.003 Base149 ms1 payers83% up
  63. 90api.vextorium.com/v1/jwt-verifyDecode a JWT and verify its signature with the public keys of a JWKS URL (RS256, ES256, EdDSA...) or an HMAC secret, checking expiry, audience and issuer; returns header, claims and the exact reason if invalid. Tokens are not stored.$0.003 Base146 ms1 payers83% up
  64. 90api.vextorium.com/v1/solana-token-searchSearch Solana tokens by name, symbol or mint with Jupiter: every match with verification, organic score, price, market cap, liquidity, holders and risk flags, to tell the real token from copycats.$0.003 Base158 ms1 payers83% up
  65. 90api.vextorium.com/v1/hyperliquid-validatorsHyperliquid validators (HYPE staking)$0.004 Base145 ms1 payers83% up
  66. 90api.vextorium.com/v1/email-headersAnalyze raw email headers: sender, recipient, subject, server hops (Received) with delays, SPF/DKIM/DMARC results, Return-Path and Reply-To mismatches and spoofing signals, with a verdict. Investigate phishing or delivery issues. Nothing is stored.$0.003 Base167 ms1 payers83% up
  67. 90api.vextorium.com/v1/dns-propagationCheck DNS propagation of a record across 8 public resolvers worldwide (Google, Cloudflare, Quad9, OpenDNS, AdGuard...): each answer and TTL and whether they all agree. Use after changing DNS.$0.004 Base149 ms1 payers83% up
  68. 90api.vextorium.com/v1/asn-infoInformation about an autonomous system: holder, whether it announces routes, registry block, number of IPv4 and IPv6 prefixes announced, approximate IPv4 addresses and a sample of prefixes. RIPEstat data.$0.003 Base173 ms1 payers83% up
  69. 90api.vextorium.com/v1/ip-infoIP address info (ASN, owner, abuse)$0.003 Base186 ms1 payers83% up
  70. 90api.vextorium.com/v1/mcp-inspectConnect to a remote MCP server (Streamable HTTP) as a client and return its name, version, instructions, capabilities and tool list with descriptions and parameters, without calling any tool. Know what an MCP server offers before trusting it.$0.005 Base152 ms1 payers83% up
  71. 90api.vextorium.com/v1/openapi-summaryFetch an OpenAPI/Swagger spec (JSON or YAML) and summarize it for an agent: title, version, servers, authentication schemes and every endpoint with method, path, summary and required parameters.$0.004 Base159 ms1 payers83% up
  72. 90api.vextorium.com/v1/llms-txt-readRead a site's llms.txt$0.003 Base159 ms1 payers83% up
  73. 90api.vextorium.com/v1/token-supplyToken supply, burned & owner share$0.004 Base163 ms1 payers83% up
  74. 90api.vextorium.com/v1/nft-collectionNFT collection on-chain profile$0.004 Base152 ms1 payers83% up
  75. 90api.vextorium.com/v1/list-compareCompare two lists (diff & duplicates)$0.003 Base147 ms1 payers83% up
  76. 90api.vextorium.com/v1/text-extract-numbersExtract and normalize every number in a text: amounts with currency (€, $, USDC, BTC...), percentages, multipliers (k, million, bn) and plain figures, understanding both 1.234,56 and 1,234.56, with totals per currency.$0.003 Base163 ms1 payers83% up
  77. 90api.vextorium.com/v1/text-similaritySimilarity between two texts without AI: TF-IDF cosine, vocabulary Jaccard and character-trigram Jaccard (catches edited copies), shared words and a verdict. For duplicates, plagiarism checks and deduplication.$0.003 Base149 ms1 payers83% up
  78. 90api.vextorium.com/v1/pii-redactRedact personal data from text without AI: emails, phone numbers, IBANs, card numbers (Luhn-checked), Spanish DNI/NIE, IPs, crypto addresses and URLs, replaced by labels ([EMAIL_1]) or asterisks. Before sending text to an LLM or sharing logs. Text is not stored.$0.003 Base153 ms1 payers83% up
  79. 90api.vextorium.com/v1/extractive-summaryExtractive summary without AI: picks the most representative sentences (term frequency and position scoring) and returns them in original order, with the reduction percentage. Deterministic and instant.$0.003 Base154 ms1 payers83% up
  80. 90api.vextorium.com/v1/keywordsKeyword & keyphrase extraction$0.003 Base147 ms1 payers83% up
  81. 90api.vextorium.com/v1/detect-languageDetect the language of a text without AI (55 languages, statistical langdetect model) with probability and alternatives. Fast and cheap for routing messages or choosing a translation.$0.003 Base167 ms1 payers83% up
  82. 90api.vextorium.com/v1/llm-token-countCount the tokens of a text with OpenAI tokenizers (o200k for GPT-4o/4.1/5, cl100k for GPT-4/3.5) plus estimates for Claude, Llama and Gemini, with characters per token. Budget LLM calls and split contexts.$0.003 Base149 ms1 payers83% up
  83. 90api.vextorium.com/v1/staking-calculatorStaking rewards: final amount, total rewards and average per day and month, with daily compounding or simple, after validator commission, in tokens and optionally in USD.$0.003 Base180 ms1 payers83% up
  84. 90api.vextorium.com/v1/loan-liquidation-priceDeFi loan health & liquidation price$0.003 Base139 ms1 payers83% up
  85. 90api.vextorium.com/v1/pnl-calculatorTrade PnL calculator$0.003 Base158 ms1 payers83% up
  86. 90api.vextorium.com/v1/fear-greed-historyDaily history of the crypto Fear & Greed Index (0 extreme fear, 100 extreme greed): average, max, min, days in each zone and trend, with the series. Alternative.me data.$0.003 Base153 ms1 payers83% up
  87. 90api.vextorium.com/v1/page-imagesPage images & missing alt text$0.003 Base162 ms1 payers83% up
  88. 90api.vextorium.com/v1/website-socialsSocial profiles of a website$0.003 Base155 ms1 payers83% up
  89. 90api.vextorium.com/v1/page-linksAll links on a page classified as internal or external, with anchor text, nofollow/sponsored, new-tab flags and the most linked external domains. For SEO, crawling and audits.$0.003 Base146 ms1 payers83% up
  90. 90api.vextorium.com/v1/html-tablesHTML tables to JSON$0.004 Base181 ms1 payers83% up
  91. 90api.vextorium.com/v1/url-inspectTechnical inspection of a URL: status, redirects, time to first byte and total time, bytes, compression, content type, cache policy, server, CDN, cookies set, security headers present and all response headers.$0.003 Base185 ms1 payers83% up
  92. 90api.vextorium.com/v1/tech-detectWebsite technology detector$0.004 Base152 ms1 payers83% up
  93. 90api.vextorium.com/v1/defi-overviewDeFi market snapshot: total TVL and top 5 chains, DEX volume, fees generated over 24h, 7d and 30d, and stablecoin market cap, with changes. One call for a daily market brief. DefiLlama data.$0.004 Base160 ms1 payers83% up
  94. 90api.vextorium.com/v1/chain-top-protocolsRanking of the DeFi protocols with the most TVL on a specific chain (Base, Solana, Arbitrum, BSC...), with category, 7-day change and share of the chain's TVL. Optional category filter.$0.004 Base149 ms1 payers83% up
  95. 90api.vextorium.com/v1/protocol-tvl-compositionProtocol TVL composition by token$0.004 Base145 ms1 payers83% up
  96. 90api.vextorium.com/v1/rwa-rankingTokenized real-world assets (RWA) ranking$0.004 Base146 ms1 payers83% up
  97. 90api.vextorium.com/v1/protocols-by-categoryTop protocols by DeFi category$0.004 Base143 ms1 payers83% up
  98. 90api.vextorium.com/v1/stablecoin-depegStablecoin depeg monitor$0.004 Base176 ms1 payers83% up
  99. 90api.vextorium.com/v1/options-volumeOn-chain options volume$0.004 Base152 ms1 payers83% up
  100. 90api.vextorium.com/v1/dex-protocol-volumeVolume of one DEX$0.004 Base186 ms1 payers83% up