x402watch

22,001 paid endpoints are listed. 21,144 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 2026-10-02 05:45 UTC · 22,001 probed

21,144 answering 402279 down455 rejecting123 no paywall2,416 price drift
  1. 96twin.unykorn.org/encode-packedSolidity abi.encodePacked equivalent — Genesis402 / UnyKorn Operator Network$0.002 Base76 ms2 payers93% up
  2. 96twin.unykorn.org/address-identifyWhich chain does this address belong to, and is it well-formed — Genesis402 / UnyKorn Operator Network$0.002 Base83 ms2 payers93% up
  3. 96twin.unykorn.org/abi-encodeABI-encode a list of typed parameters — Genesis402 / UnyKorn Operator Network$0.002 Base83 ms2 payers93% up
  4. 96twin.unykorn.org/abi-decodeABI-decode return data against declared types — Genesis402 / UnyKorn Operator Network$0.002 Base87 ms2 payers93% up
  5. 96twin.unykorn.org/solana-token-balanceBalance of one specific SPL token account — Genesis402 / UnyKorn Operator Network$0.003 Base80 ms2 payers93% up
  6. 96twin.unykorn.org/solana-supplySolana total and circulating SOL supply — Genesis402 / UnyKorn Operator Network$0.003 Base76 ms2 payers93% up
  7. 96twin.unykorn.org/solana-priority-feesRecent Solana priority fees, summarised — Genesis402 / UnyKorn Operator Network$0.003 Base85 ms2 payers93% up
  8. 96twin.unykorn.org/native-priceCurrent USD price of a major coin by name — Genesis402 / UnyKorn Operator Network$0.003 Base84 ms2 payers93% up
  9. 96twin.unykorn.org/merkle-rootMerkle root over a list of leaves — Genesis402 / UnyKorn Operator Network$0.003 Base83 ms2 payers93% up
  10. 96twin.unykorn.org/json-diffStructural difference between two JSON values — Genesis402 / UnyKorn Operator Network$0.003 Base83 ms2 payers93% up
  11. 96twin.unykorn.org/evm-receiptTransaction receipt — did it succeed, what did it cost, what did it emit — Genesis402 / UnyKorn Operator Network$0.003 Base78 ms2 payers93% up
  12. 96twin.unykorn.org/evm-estimate-gasEstimate the gas a transaction would use, before signing it — Genesis402 / UnyKorn Operator Network$0.003 Base89 ms2 payers93% up
  13. 96twin.unykorn.org/evm-callSimulate any read-only contract call — Genesis402 / UnyKorn Operator Network$0.003 Base81 ms2 payers93% up
  14. 96twin.unykorn.org/evm-blockBlock header by number, with age and gas utilisation worked out — Genesis402 / UnyKorn Operator Network$0.003 Base83 ms2 payers93% up
  15. 96twin.unykorn.org/erc721-token-uriMetadata URI for one ERC721 token — Genesis402 / UnyKorn Operator Network$0.003 Base82 ms2 payers93% up
  16. 96twin.unykorn.org/erc721-token-of-ownerThe Nth token id an address owns in a collection — Genesis402 / UnyKorn Operator Network$0.003 Base83 ms2 payers93% up
  17. 96twin.unykorn.org/erc721-approved-for-allHas an owner granted an operator control of their whole collection — Genesis402 / UnyKorn Operator Network$0.003 Base83 ms2 payers93% up
  18. 96twin.unykorn.org/erc721-approvedWhich address is approved to move one NFT — Genesis402 / UnyKorn Operator Network$0.003 Base81 ms2 payers93% up
  19. 96twin.unykorn.org/erc20-balanceERC20 token balance for one holder — Genesis402 / UnyKorn Operator Network$0.003 Base78 ms2 payers93% up
  20. 96twin.unykorn.org/erc20-allowanceHow much a spender is approved to move from an owner — Genesis402 / UnyKorn Operator Network$0.003 Base80 ms2 payers93% up
  21. 96twin.unykorn.org/erc165-supportsDoes a contract declare support for an ERC165 interface — Genesis402 / UnyKorn Operator Network$0.003 Base83 ms2 payers93% up
  22. 96twin.unykorn.org/erc1155-uriMetadata URI for one ERC1155 token id — Genesis402 / UnyKorn Operator Network$0.003 Base80 ms2 payers93% up
  23. 96twin.unykorn.org/btc-block-at-heightBlock hash at a given Bitcoin height — Genesis402 / UnyKorn Operator Network$0.003 Base85 ms2 payers93% up
  24. 96twin.unykorn.org/btc-difficultyBitcoin difficulty adjustment progress and estimate — Genesis402 / UnyKorn Operator Network$0.003 Base83 ms2 payers93% up
  25. 96twin.unykorn.org/erc721-ownerWho currently owns one ERC721 token — Genesis402 / UnyKorn Operator Network$0.003 Base80 ms2 payers93% up
  26. 96twin.unykorn.org/erc721-balanceHow many NFTs from one collection an address holds — Genesis402 / UnyKorn Operator Network$0.003 Base85 ms2 payers93% up
  27. 96twin.unykorn.org/erc20-supplyTotal supply of an ERC20 or ERC721 contract — Genesis402 / UnyKorn Operator Network$0.003 Base80 ms2 payers93% up
  28. 96twin.unykorn.org/erc1155-balanceERC1155 balance for one owner and token id — Genesis402 / UnyKorn Operator Network$0.003 Base81 ms2 payers93% up
  29. 96twin.unykorn.org/xrpl-offersOpen DEX offers placed by an XRPL account — Genesis402 / UnyKorn Operator Network$0.004 Base84 ms2 payers93% up
  30. 96twin.unykorn.org/xrpl-objectsEverything an XRPL account owns that costs it reserve — Genesis402 / UnyKorn Operator Network$0.004 Base79 ms2 payers93% up
  31. 96twin.unykorn.org/xrpl-linesEvery trustline on an XRPL account — Genesis402 / UnyKorn Operator Network$0.004 Base83 ms2 payers93% up
  32. 96twin.unykorn.org/token-priceCurrent USD price of an ERC20 token — Genesis402 / UnyKorn Operator Network$0.004 Base78 ms2 payers93% up
  33. 96twin.unykorn.org/stellar-offersOpen offers an account has on the Stellar DEX — Genesis402 / UnyKorn Operator Network$0.004 Base83 ms2 payers93% up
  34. 96twin.unykorn.org/solana-account-infoRaw Solana account: owner program, rent-exemption, data size — Genesis402 / UnyKorn Operator Network$0.004 Base83 ms2 payers93% up
  35. 96twin.unykorn.org/evm-fee-historyRecent base-fee and priority-fee history — Genesis402 / UnyKorn Operator Network$0.004 Base82 ms2 payers93% up
  36. 96twin.unykorn.org/xrpl-nftsXLS-20 NFTs held by an XRPL account — Genesis402 / UnyKorn Operator Network$0.005 Base74 ms2 payers93% up
  37. 96twin.unykorn.org/xrpl-gateway-balancesWhat an XRPL issuer actually has outstanding — Genesis402 / UnyKorn Operator Network$0.005 Base82 ms2 payers93% up
  38. 96twin.unykorn.org/token-price-changeRecent percentage price change for a token — Genesis402 / UnyKorn Operator Network$0.005 Base85 ms2 payers93% up
  39. 96twin.unykorn.org/token-price-atUSD price of a token at a past moment — Genesis402 / UnyKorn Operator Network$0.005 Base76 ms2 payers93% up
  40. 96twin.unykorn.org/stellar-tradesRecent DEX trades an account was part of — Genesis402 / UnyKorn Operator Network$0.005 Base72 ms2 payers93% up
  41. 96twin.unykorn.org/stellar-paymentsThe 50 most recent payments in or out of a Stellar account — Genesis402 / UnyKorn Operator Network$0.005 Base80 ms2 payers93% up
  42. 96twin.unykorn.org/stellar-operationsThe 50 most recent operations on a Stellar account — Genesis402 / UnyKorn Operator Network$0.005 Base74 ms2 payers93% up
  43. 96twin.unykorn.org/stellar-liquidity-poolsStellar liquidity pools an account has shares in — Genesis402 / UnyKorn Operator Network$0.005 Base84 ms2 payers93% up
  44. 96twin.unykorn.org/stellar-claimableClaimable balances waiting for an account — Genesis402 / UnyKorn Operator Network$0.005 Base77 ms2 payers93% up
  45. 96twin.unykorn.org/stellar-assetSupply and holder counts for one issued Stellar asset — Genesis402 / UnyKorn Operator Network$0.005 Base76 ms2 payers93% up
  46. 96twin.unykorn.org/solana-signaturesThe 50 most recent transaction signatures for a Solana address — Genesis402 / UnyKorn Operator Network$0.005 Base81 ms2 payers93% up
  47. 96twin.unykorn.org/evm-contractEVM contract introspection — is it a contract, is it a proxy, is it a token — Genesis402 / UnyKorn Operator Network$0.005 Base81 ms2 payers93% up
  48. 96twin.unykorn.org/btc-utxosEvery spendable UTXO at a Bitcoin address — Genesis402 / UnyKorn Operator Network$0.005 Base76 ms2 payers93% up
  49. 96twin.unykorn.org/btc-txOne Bitcoin transaction with its fee rate and confirmation status — Genesis402 / UnyKorn Operator Network$0.005 Base83 ms2 payers93% up
  50. 96twin.unykorn.org/btc-addressBitcoin address balance, confirmed and unconfirmed — Genesis402 / UnyKorn Operator Network$0.005 Base83 ms2 payers93% up
  51. 96twin.unykorn.org/ens-textRead a text record from an ENS name — Genesis402 / UnyKorn Operator Network$0.005 Base83 ms2 payers93% up
  52. 96twin.unykorn.org/ens-reverseReverse-resolve an address to its primary ENS name — Genesis402 / UnyKorn Operator Network$0.005 Base78 ms2 payers93% up
  53. 96twin.unykorn.org/ens-resolveResolve an ENS name to an Ethereum address — Genesis402 / UnyKorn Operator Network$0.005 Base80 ms2 payers93% up
  54. 96twin.unykorn.org/xrpl-historyThe 50 most recent transactions for an XRPL account — Genesis402 / UnyKorn Operator Network$0.006 Base85 ms2 payers93% up
  55. 96twin.unykorn.org/xrpl-bookXRPL order book for a currency pair — Genesis402 / UnyKorn Operator Network$0.006 Base80 ms2 payers93% up
  56. 96twin.unykorn.org/evm-txEVM transaction + receipt + decoded ERC20 transfers in ONE call — Genesis402 / UnyKorn Operator Network$0.006 Base80 ms2 payers93% up
  57. 96twin.unykorn.org/evm-proofMerkle-Patricia state proof for an account and optional storage slot — Genesis402 / UnyKorn Operator Network$0.006 Base87 ms2 payers93% up
  58. 96twin.unykorn.org/evm-logsEvent logs filtered by contract, topic and block range — Genesis402 / UnyKorn Operator Network$0.006 Base81 ms2 payers93% up
  59. 96twin.unykorn.org/evm-block-receiptsEvery transaction receipt in one block, in one call — Genesis402 / UnyKorn Operator Network$0.006 Base83 ms2 payers93% up
  60. 96twin.unykorn.org/evm-address-summaryEverything cheap that is knowable about an address, in one call — Genesis402 / UnyKorn Operator Network$0.006 Base84 ms2 payers93% up
  61. 96twin.unykorn.org/btc-address-txsRecent Bitcoin transactions for an address — Genesis402 / UnyKorn Operator Network$0.006 Base83 ms2 payers93% up
  62. 96twin.unykorn.org/xrpl-accountXRPL account read — balance, reserve, spendable, trustlines, flags — Genesis402 / UnyKorn Operator Network$0.008 Base83 ms2 payers93% up
  63. 96twin.unykorn.org/token-concentrationHow concentrated is a token's ownership — Genesis402 / UnyKorn Operator Network$0.008 Base88 ms2 payers93% up
  64. 96twin.unykorn.org/stellar-accountStellar account read — balances, trustlines, signers, thresholds, flags — Genesis402 / UnyKorn Operator Network$0.008 Base77 ms2 payers93% up
  65. 96twin.unykorn.org/evm-multi-chain-scanWhich of ten EVM chains has this address ever touched — Genesis402 / UnyKorn Operator Network$0.008 Base85 ms2 payers93% up
  66. 96twin.unykorn.org/evm-balanceMulti-chain EVM balance read — native + ERC20, up to 5 chains in ONE call — Genesis402 / UnyKorn Operator Network$0.008 Base76 ms2 payers93% up
  67. 96twin.unykorn.org/address-activityHow old and how active is an address — Genesis402 / UnyKorn Operator Network$0.008 Base82 ms2 payers93% up
  68. 96hubvibe-io.com/work/maps/weatherWeather forecast anywhere on Earth: current conditions, the next 24 hours and a seven-day forecast (temperature, precipitation, wind, humidity, cloud, pressure, condition) from MET Norway's forecast model, plus active US National Weather Service alerts for US locations. Input: location as a place name, US street address or airport code, or lat and lng.$0.10 Base65 ms1 payers93% up
  69. 96http--forest-gas-station--lcjl27p8lmjs.code.run/x402/discoverSearch machine-payable x402 resources and normalize discovery metadata.$0.002 Base Sepolia289 ms1 payers94% up
  70. 96data.intel.rallylive.ca/data/forecast/montreal7-day weather forecast for Montreal: daily highs and lows, precipitation probability and totals, wind and conditions, plus hourly detail for today, from Open-Meteo. Trip planning and scheduling for Montreal without an API key. $0.01 per call.$0.01 Base143 ms1 payers93% up
  71. 96i3p3mgbsn54dvlivnk6wbumal40eqtsn.lambda-url.us-east-1.on.aws/v1/document-table-extractorExtract Markdown, CSV, and plain-text tables into clean structured rows for agents and business workflows.$0.15 Base253 ms1 payers93% up
  72. 96i3p3mgbsn54dvlivnk6wbumal40eqtsn.lambda-url.us-east-1.on.aws/v1/openapi-agent-auditorAudit an OpenAPI document for complete schemas, useful examples, stable operation IDs, clear descriptions, and payment/authentication discoverability.$0.20 Base265 ms1 payers93% up
  73. 96i3p3mgbsn54dvlivnk6wbumal40eqtsn.lambda-url.us-east-1.on.aws/v1/pii-secret-redactorDetect and redact common personal data and credentials from text, JSON, and source code without sending content to a model.$0.15 Base270 ms1 payers93% up
  74. 96i3p3mgbsn54dvlivnk6wbumal40eqtsn.lambda-url.us-east-1.on.aws/v1/semantic-web-diffCompare two webpage versions and return only meaningful content changes as structured JSON. Filters cosmetic DOM churn, tracking IDs, timestamps, and other noise.$0.02 Base229 ms1 payers93% up
  75. 96flat-rate-llm.kikoribera03.workers.dev/v2/inferenciaLLM inference at a flat $1.00 per call, with no account, no API key and no token metering. POST a prompt, get the completion: the same price for 10 tokens or 4000, while metered gateways scale with usage. Automatic failover across several large models; typical response under 1s. Pay per call in USDC over x402 - nothing to sign up for.$1.00 Basedown1 payers93% up
  76. 96cryptyx.ai/api/asset/thesis-journalPer-day composite conviction trajectory for one asset over 7-90 days. Score timeline always complete; optional narrative one-liner overlay from the daily thesis job. Track conviction evolution before a major move. Coverage: pass any asset in the CRYPTYX 200+ tracked universe (BTC, ETH, SOL, top-cap + long-tail).$0.05 Basedown1 payers93% up
  77. 96cryptyx.ai/api/market-pulse/factor-cross-sectionFactor term-structure grid — 7 classes by 8 horizons of market-average t-score with breadth counts and 1-day momentum delta. Per-asset mode adds delta-vs-market per cell. Read rotation in one matrix. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.$0.05 Basedown1 payers93% up
  78. 96cryptyx.ai/api/signals/composite/breadthUniverse-wide composite breadth at one horizon — bullish/bearish/neutral counts and percentages across 200+ assets, sliced by regime, with full per-asset stance list. Is this rally broad or concentrated?$0.05 Base280 ms1 payers93% up
  79. 96cryptyx.ai/api/signals/composite/backtestWalk-forward backtest of a custom 8-class composite weight vector at 7d/14d/30d. Runs custom, IC-weighted default, and equal-weight blends in parallel with full performance breakdowns. Benchmark your blend against the production moat. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.$0.05 Base170 ms1 payers93% up
  80. 96cryptyx.ai/api/signals/simulatePre-flight threshold simulator — count how many assets would trigger at a proposed cutoff for one anchor day, with current vs proposed threshold and estimated trigger rate. Use before forking parameters. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.$0.05 Base148 ms1 payers93% up
  81. 96cryptyx.ai/api/signals/forkFork a signal into an inactive parameter variant — production firing is untouched. Experimentation primitive: fork, dryrun-backtest, then activate. Returns the new version id and parameters. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.$0.05 Base183 ms1 payers93% up
  82. 96cryptyx.ai/api/taker-flowDaily taker buy/sell USD and buy/sell ratio per asset, split into spot and futures arrays, last N days. Raw tape for custom flow models. Coverage: pass any asset in the CRYPTYX 200+ tracked universe (BTC, ETH, SOL, top-cap + long-tail).$0.01 Basedown1 payers93% up
  83. 96cryptyx.ai/api/signals/explainFactor t-score breakdown for one (asset, day) — per-class scores across the 8 factor classes plus the weighted composite. Inspect which factor classes drove the call. Coverage: pass any asset in the CRYPTYX 200+ tracked universe (BTC, ETH, SOL, top-cap + long-tail).$0.01 Base163 ms1 payers93% up
  84. 96signalharness.ai/api/agent/services/agent_research_trace_report/invokeAgent Research Trace Report performs a bounded deterministic agent research trace report operation over caller-supplied AI and search evidence.$0.03 Base201 ms1 payers93% up
  85. 96x402.agentutility.ai/user-tweetsFetches the latest public tweets from any X username, with text, timestamps, metrics, pagination token, and author profile. Read-only X API v2 route: resolves a public username, fetches that user's recent public posts, and excludes retweets by default. No posting, replying, liking, following, DM access, or account mutation. Use it as a user tweets API, X user timeline, or Twitter user posts endpoint.$0.01 Base142 ms1 payers93% up
  86. 96x402.agentutility.ai/tweets-searchRepeat a saved X/Twitter search query to monitor a brand, topic, or phrase over time. Send the same query, language, and max_results on each check; it returns recent public post text, timestamps, metrics, and expanded author profiles. It uses read-only X API v2, excludes retweets by default, and translates legacy since:, until:, and -filter:retweets syntax. If X cannot answer, the tweets array contains clearly labeled public-index results with degraded: true rather than an empty successful response. No account mutation. Use it as a tweets search API, Twitter monitor, saved-query watchlist, or X recent post search.$0.006 Base36 ms1 payers93% up
  87. 96livecheck.fly.dev/v1/confirmLivecheck Confirm — use after your agent submits a lead/contact form (intent=lead_submit): POST {url, intent} where url is the thank-you or result page. Returns confirmed|failed|unknown with Level-2+ evidence (confirmation/ref/ticket id required for confirmed). Independent cookieless verifier — actor ≠ verifier — so you do not grade your own homework before the next paid or irreversible step. Not URL/stock liveness (use /v1/verify), not payment/tx settlement, not a thank-you-page classifier.$0.10 Base122 ms1 payers93% up
  88. 96x402.agentutility.ai/audio-loudnormNormalize audio loudness to a target LUFS level for podcasts, YouTube, and Spotify delivery. Send an audio_url plus an optional target_lufs (defaults to -16) and true_peak, and it probes duration, runs two-pass EBU R128 loudness normalization, and returns a hosted MP3 URL with the applied target and duration in seconds. Common presets: -23 for broadcast, -16 for podcasts, -14 for streaming platforms. Use it as a loudness normalizer, LUFS correction API, or audio mastering step before publishing.$0.02 Base29 ms1 payers93% up
  89. 96agentforge-taupe.vercel.app/v1/code-reviewSmart contract security audit for developers and auditors: finds vulnerabilities, gas optimizations, and best-practice violations in Solidity, Rust, Move, or TypeScript code, with a diff review mode for proposed changes. Category: inference.$0.05 Base268 ms1 payers93% up
  90. 96agentbit.app/v1/social/profilePublic social profile lookup: display name, bio, followers, following, posts, verified & business flags, category, external link. Instagram supported.$0.03 Base171 ms1 payers93% up
  91. 96agentbit.app/v1/maps/reviewsRecent Google Maps reviews for a place: author, text, rating, date, owner response, plus the place summary. Give a place_id or a query.$0.04 Base166 ms1 payers93% up
  92. 96agentbit.app/v1/amazon/searchAmazon product search with full details: title, ASIN, price, rating, review count, brand, stock, image, link. Give a query or an Amazon URL.$0.04 Base169 ms1 payers93% up
  93. 96minia2a.uk/x402/price-screenerminia2a service: x402-price-screener$0.10 Base153 ms1 payers93% up
  94. 96minia2a.uk/x402/x402-uuidminia2a service: x402-uuid$0.10 Base154 ms1 payers93% up
  95. 96x402.openwebninja.com/google-ai-mode/ai-mode$0.005 Base222 ms1 payers100% up
  96. 96api.govparse.io/v1/nlrb/cases/searchWhich employers have NLRB labor activity — a union petition or an unfair-labor-practice charge? Search NLRB cases by employer, case type (CA/CB/RC/RM/...), category (ulp vs representation), status, region, state, union, election result, or filing date (since). Returns the employer (entity-resolved where possible), region, union, and — for elections — the tally. Cases as filed (a charge is an allegation, not a judgment); a labor-relations trigger for PEO/HR, benefits, staffing, and outplacement.$1.25 Base270 ms1 payers93% up
  97. 96api.govparse.io/v1/hcris/staffing-decline/searchWhich hospitals cut staffing year-over-year? Compares each CCN's latest HCRIS fiscal year to the prior on a staffing ratio (metric=fte_per_bed default, or fte_per_discharge) and returns those whose ratio DROPPED. Filter by state, min_pct_drop, year, ccn, name, control_type, min_beds. Returns latest/prior ratio, delta and pct_change — an understaffing tell. CCN joins CMS timely-care. CMS public-domain records.$1.25 Base254 ms1 payers93% up
  98. 96api.govparse.io/v1/faa/deregistrations/searchWhich aircraft were just deregistered (sold, exported, scrapped, or repossessed)? Search FAA aircraft deregistrations (cancel date >= 2022) by last registrant/owner, N-number, mailing state, status, or cancel date (since/before) — the asset-disposal / ownership-exit event for auctioneers, dealers, and asset-based lenders. Returns the aircraft, its last entity-resolved registrant, and the cancel date. FAA public-domain records.$1.25 Base196 ms1 payers93% up
  99. 96api.govparse.io/v1/fcc/licenses/searchWho just got a new or modified FCC wireless license (a buildout tell)? Search the FCC ULS license transactions (microwave, land-mobile private/commercial, paging, broadcast-aux) by licensee company, call sign, radio_service, service_group, state, city, status, applicant_type, FRN, grant date (granted_since), or last-action date (since). Returns the license, its entity-resolved licensee, radio service, status, and dates. FCC public-domain records.$1.25 Base142 ms1 payers93% up
  100. 96api.govparse.io/v1/feeds/distress-signalsWhich businesses carry public-record distress markers? One observational row per subject across ten tracked marker types — WARN notice, Form 5500 participant drop, final filing, or Schedule H asset decline, IRS auto-revocation, SEC NT / 8-K / going-concern filings, FMCSA authority revocation, active enforcement case — with per-marker counts, dates, and details. Ticker/CIK-mapped where identifier-verified, basis disclosed. Counts as filed, never a score. NOT a consumer report, no FCRA use.$25.00 Base159 ms1 payers93% up