x402watch

52,953 paid endpoints are listed. 27,123 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 06:00 UTC · 52,953 probed

27,123 answering 40219,794 down5,154 rejecting882 no paywall1,829 price drift
  1. 95data.greeneris.io/v1/wx/forecastHourly weather forecast for any point on Earth from Open-Meteo (blend of ECMWF/GFS/ICON models, refreshed hourly; data CC-BY 4.0). Query: ?latitude=48.8566&longitude=2.3522&hourly=temperature_2m,precipitation,wind_speed_10m&forecast_days=2 (1-16 days, ~80 hourly variables available, optional daily= aggregates and timezone=auto). ISO 8601 time arrays + units. 15 min cache.$0.001 Base454 ms2 payers100% up
  2. 95api.deepnets.ai/api/watchlistThe active deepnets watchlist - high-volume tokens that passed the safety screen, with current safety data.$0.01 Solana813 ms2 payers100% up
  3. 95x402.ottoai.services/institutional-holdings13F holdings for any SEC-filing manager (hedge funds, asset managers) by CIK or manager ticker: latest 13F top 20 positions, amendments applied (hourly snapshot, ~1h correction lag): issuer, CUSIP, value in whole USD, share/principal amount (SH/PRN), put/call flag, reported value, position count. Whale tracking from the primary source. 13F holdings, hedge fund positions, institutional ownership. Public-domain SEC EDGAR. $0.003 per call.$0.003 Base495 ms2 payers100% up
  4. 95stabletravel.dev/api/seats-aero/routesList airline flight route pairs covered by a Seats.aero mileage program source. These are origin/destination airport pairs, not API routes.$0.01 Base909 ms2 payers100% up
  5. 95vaaya.ai/api/run/brave/newsBrave — news-only search over the Brave index: recent articles with source, age, and breaking flags. Pass `q`; optional `count` (1-50), `country`, `search_lang`, `freshness` (pd|pw|pm|py), `safesearch`, `offset`. Use for current-events queries where web search returns stale evergreen pages.$0.01 Base349 ms2 payers100% up
  6. 95data.greeneris.io/v1/domain/rdapAuthoritative domain registration facts from the ICANN-mandated RDAP protocol (rdap.org bootstrap -> registry of record), normalized across all TLDs: registration/expiration/last-changed dates, computed age_days, registrar name, EPP status locks and nameservers. Query: ?domain=google.com (required). No personal data served. 24h cache.$0.005 Base359 ms2 payers100% up
  7. 95data.greeneris.io/v1/lei/ownershipWho owns whom, from the official GLEIF LEI graph (CC0 licensed, covers 2.5M+ legal entities worldwide). Query: ?lei=5493001KJTIIGC8Y1R12. Four GLEIF lookups in one call: entity name and status, declared direct parent, ultimate parent, plus the total count and a 10-entity sample of direct children. Unknown LEI returns found=false. 24h cache.$0.005 Base608 ms2 payers100% up
  8. 95eltociear-contract-guard.hf.space/checkCheck$0.005 Base521 ms2 payers100% up
  9. 95vaaya.ai/api/run/twocaptcha/solve2Captcha — submit a captcha task (reCAPTCHA, Turnstile, hCaptcha, image; ~0.3¢). Params: `task` object per 2Captcha createTask schema. Poll with twocaptcha:result.$0.01 Base362 ms2 payers100% up
  10. 95x402.glassnode.com/v1/metrics/indicators/nvtNetwork Value to Transactions Ratio (NVT) — Network Value to Transactions Ratio (NVT) is market cap divided by the transferred on-chain volume measured in USD. Data by Glassnode.$0.05 Base477 ms2 payers100% up
  11. 95agent402.tools/v1/grounded/chat/completionsOpenAI-compatible chat completions GROUNDED in a live web search on every call: the gateway runs an Exa search (up to 5 results) for the prompt, hands the results to the model, and returns the answer with url_citation annotations - $0.03 per call in USDC, no API key, no signup. Model is chosen server-side like the auto tier (omit "model" or send "auto"; explicit ranked models accepted); the response adds agent402_router {category, quality, served}.$0.03 Base558 ms2 payers100% up
  12. 95netintel.dev/url-safety/checkCheck a URL against URLhaus malware database and heuristic phishing pattern analysis — returns threat classification, malware family if known, threat confidence, and risk score so agents can screen links before following them or sharing them in automated workflows.$0.01 Base350 ms2 payers100% up
  13. 95netintel.dev/security-headers/analyzeFetches a URL and evaluates 10 security-critical response headers (CSP, HSTS, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, X-XSS-Protection, CORP, COEP, COOP), detects anti-patterns, and returns an overall security grade (A–F).$0.01 Base386 ms2 payers100% up
  14. 95netintel.dev/rss-parser/fetchFetch and parse any RSS 2.0 or Atom feed URL and return structured articles with title, link, description (truncated to 500 chars), author, publish date, and categories — so agents can monitor content sources, build news pipelines, and process any feed without building their own XML parser. A URL that isn't a parseable feed still returns 200 with feed_type:"unknown", empty items, and a parse_failed finding.$0.01 Base307 ms2 payers100% up
  15. 95netintel.dev/robots-txt/analyzeFetch and parse a domain's robots.txt file — returns all crawl rules by user-agent, sitemap URLs, crawl delay settings, and checks whether a specific path is allowed or blocked for any bot — so agents can respect crawl policies and locate sitemaps before scraping.$0.01 Base337 ms2 payers100% up
  16. 95netintel.dev/redirect/traceFollows a URL through its full redirect chain (up to 20 hops), recording status codes, timing, headers, TLS status, and protocol downgrades per hop, then returns an overall redirect health grade (A–F).$0.01 Base416 ms2 payers100% up
  17. 95netintel.dev/domain-availability/checkCheck if a domain name is available for registration by querying RDAP and DNS — pass a bare name (e.g. mybrand) to sweep it across 10 popular TLDs simultaneously, or a full domain (e.g. mybrand.com) to check that single domain — returns registration status, expiry date if registered, and available/taken TLD lists so agents can find the best domain for a brand or project.$0.01 Base578 ms2 payers100% up
  18. 95402.com.tr/api/x402/gas-oracleReturns current Base gas fees (baseFee, maxPriorityFee) and three tiered suggestions (slow, normal, fast) in Gwei, derived live from the Base RPC. Built for agents that time or cost-estimate transactions.$0.01 Base609 ms2 payers100% up
  19. 95blockrun.ai/api/v1/defillama/prices/coingecko:staked-ether,coingecko:wrapped-bitcoinToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base463 ms2 payers100% up
  20. 95blockrun.ai/api/v1/defillama/prices/coingecko:solana,coingecko:baseToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base447 ms2 payers100% up
  21. 95blockrun.ai/api/v1/defillama/prices/coingecko:ethereum,coingecko:bitcoinToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base433 ms2 payers100% up
  22. 95blockrun.ai/api/v1/defillama/prices/coingecko:ethena,coingecko:usualToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base410 ms2 payers100% up
  23. 95blockrun.ai/api/v1/defillama/prices/coingecko:arbitrum,coingecko:optimismToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base443 ms2 payers100% up
  24. 95blockrun.ai/api/v1/defillama/prices/coingecko:aerodrome-finance,coingecko:velodrome-financeToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base375 ms2 payers100% up
  25. 95netintel.dev/prediction/marketFull detail for ONE Polymarket prediction market by id or slug — question, description, every outcome with its current price (implied probability), volume, liquidity, open/close dates, resolution source, category, and status. No API key. The drill-in companion to /prediction/markets (browse/search): find a market there, then pull its full state here. Pass id or slug as query (GET) or a JSON body (POST).$0.003 Base316 ms2 payers100% up
  26. 95netintel.dev/prediction/marketsLive prediction-market odds from Polymarket — list the top active markets by volume, or search by keyword. Each result has the question, outcomes with current prices (implied probabilities), 24h/total volume, liquidity, and resolution date. No API key. Great for agents tracking real-world event probabilities (elections, crypto, sports, econ). Pass params as query (GET) or a JSON body (POST).$0.005 Base366 ms2 payers100% up
  27. 95eltociear-tokenguard.hf.space/hacksDeFi exploit/hack history — 574+ incidents sorted by funds lost with technique, chain, classification. Filter by minimum amount (DeFiLlama).$0.02 Base659 ms2 payers100% up
  28. 95402.com.tr/api/x402/encode-selectorComputes the 4-byte selector for a function signature (e.g. transfer(address,uint256) → 0xa9059cbb). The inverse of the decoder — useful for agents building or matching calldata.$0.01 Base620 ms2 payers100% up
  29. 95402.com.tr/api/x402/basenameForward + reverse Basename resolution read from the Base L2 Resolver: turn jesse.base.eth into an address, or an address into its primary Basename. No API key required.$0.01 Base811 ms2 payers100% up
  30. 95402.com.tr/api/x402/sanctions-batchPass a comma-separated list of up to 25 addresses and get an OFAC sanctions result for each, plus the flagged subset. Built for compliance agents vetting whole counterparty lists in one call.$0.03 Base912 ms2 payers100% up
  31. 95blockrun.ai/api/v1/pm/predictfun/orderbooksFetch historical orderbook snapshots for a Predict.Fun market$0.0085 Base597 ms2 payers100% up
  32. 95402.com.tr/api/x402/ai-translateLLM-quality translation as a pay-per-call primitive: send text= (up to 6K characters) and to= any language, get only the translation back — no notes, no wrapper prose, safe to pipe straight into the next step. Priced by length: $0.03 to 2,000 characters, $0.08 above — the 402 challenge quotes the price for the text you sent. No API key or subscription. Built for agents localizing content, parsing foreign-language sources, or serving multilingual users.$0.03 Base661 ms2 payers100% up
  33. 95402.com.tr/api/x402/ai-extractTurn ANY text into clean, schema-enforced JSON: pass text= plus the fields you want (fields=name,email,price,date — up to 10) and get exactly those keys back, guaranteed-valid JSON via Claude structured outputs. Add list=true to extract EVERY repeated record (invoice lines, listings, table rows) as an array. Up to 16K chars per call. Not crypto-specific — the universal parse step for agent pipelines: pages, emails, receipts, logs. Many documents? ai-extract-batch: 10 in one call for $0.10.$0.05 Base756 ms2 payers100% up
  34. 95base-gas-x402-production.up.railway.app/gas/cheapest-windowCheapest hours of day to transact on Base, from collected gas history: hourly averages in UTC ranked cheapest first, plus the savings percent.$0.02 Base421 ms2 payers100% up
  35. 95x402-factory.com/v1/evergreen/presidential-election-winner-partyLive probability: Which party wins the next US presidential election? — Stable evergreen URL for a recurring question: Which party wins the next US presidential election? Auto-resolves to the current market instance and rolls forward on resolution, so the answer is always about the next occurrence. Response adds current_slug and rolls_to_next_at to the standard probability shape.$0.02 Base773 ms2 payers100% up
  36. 95blockrun.ai/api/v1/defillama/prices/coingecko:solanaToken price lookup. Pass coin identifiers as `/v1/defillama/prices/{coins}` (e.g. `coingecko:bitcoin`, `ethereum:0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`). Supports comma-separated lists.$0.002 Base313 ms2 payers100% up
  37. 95api.relaystation.ai/v1/llm/extractProvider cost + 6%, itemized. Pull requested fields out of any text as clean JSON — schema-shaped output. ≈Opus-4.8 accuracy at ~1–5% of its cost (relaystation.ai/llm-validation). One of 11 vetted sub-cent LLM tasks on Relaystation — 155 tools, one balance.$0.01 Base665 ms2 payers100% up
  38. 95x402.glassnode.com/v1/metrics/supply/sth_sumTotal Supply Held by Short-Term Holders — The total circulating supply held by short-term holders. Data by Glassnode.$0.05 Base539 ms2 payers100% up
  39. 95x402.glassnode.com/v1/metrics/supply/lth_sumTotal Supply Held by Long-Term Holders — The total amount of circulating supply held by long-term holders. Data by Glassnode.$0.05 Base573 ms2 payers100% up
  40. 95x402.glassnode.com/v1/metrics/market/mvrv_more_155Long Term Holder MVRV — Long Term Holder MVRV (LTH-MVRV) is the MVRV ratio computed using only UTXOs with a lifespan of at least 155 days, serving as an indicator of long-term investor behaviour. Data by Glassnode.$0.05 Base652 ms2 payers100% up
  41. 95agentforge-taupe.vercel.app/v1/pingPayment flow verification for agents integrating x402: confirms your wallet and payment channel work before you spend on a real endpoint. Category: infra.$0.001 Base531 ms2 payers100% up
  42. 95x402-factory.com/v1/forecast/windowOne-call answer for a specific time window: rain odds, temps, comfort, verdict — Summarizes a ≤12-hour window at a coordinate into decision-ready numbers (rain probability, expected precip, temp range in °C, max gust, comfort index) plus a one-sentence plain-English verdict. Built for agents planning events, deliveries, and travel.$0.02 Base374 ms2 payers100% up
  43. 95402.com.tr/api/x402/url-to-jsonOne call replaces two: fetches the page, strips it to readable text, then returns exactly the fields you asked for as schema-enforced JSON (fields=price,author,published — up to 10). Add list=true to pull EVERY repeated record on the page (listings, table rows, search results) as an array — that mode costs $0.06, since it needs a much larger output budget. Built for agents that need a fact off a page, not a pile of HTML — no browser, no parser, no scraping code.$0.01 Base707 ms2 payers100% up
  44. 95402.com.tr/api/x402/secure-tokenGenerate N cryptographically-strong, url-safe random tokens server-side — session IDs, API nonces, one-time codes, coupon secrets. Pass count= for how many. A tiny paid utility for agents that need entropy without a crypto library.$0.01 Base829 ms2 payers100% up
  45. 95402.com.tr/api/x402/file-publishSend Markdown (or HTML) and get back a URL that renders as a real page — headings, tables, code blocks, mobile-readable, no scripts and no external requests. The other half of an agent's output problem: file-slot is for bytes it will fetch back, this is for the report somebody has to read. Retention 1-30 days. Published on the storage origin, never on 402.com.tr.$0.01 Base654 ms2 payers100% up
  46. 95402.com.tr/api/x402/basename-profile🆕 Resolves the complete Base identity behind an address or Basename: resolved address, avatar, description, website and social handles (X/Twitter, GitHub, Farcaster, Discord) read from Base's L2 Resolver text records. Lets an agent turn a counterparty address into a real profile — beyond just the name. Complements address-trust (verification) with the human context.$0.02 Base690 ms2 payers100% up
  47. 95402.com.tr/api/x402/paymaster-check🆕 Given a paymaster address, audits whether it's a healthy, active gas sponsor. Reads its UserOperationEvents across both EntryPoints: sponsored op volume, distinct accounts served, success rate, total gas sponsored, and concentration (the share coming from its single busiest app). The read to run before integrating a paymaster (Coinbase / Pimlico / Alchemy / custom), or judging who funds a counterparty's gas. paymaster= required, days= optional (default 30, max 90). Not financial advice.$0.05 Base699 ms2 payers100% up
  48. 95402.com.tr/api/x402/b20-permit🆕 Every B20 has ERC-2612 permit built in — approve a spender by signature instead of a transaction. Reads exactly what an agent needs to build a valid permit: the token's DOMAIN_SEPARATOR, the owner's current nonce (so the signed payload can't be rejected/replayed), and the EIP-712 domain/type struct. Read-only — signs nothing.$0.03 Base744 ms2 payers100% up
  49. 95402.com.tr/api/x402/address-intelEOA vs contract, ETH + USDC balance, transaction count and activity level — straight from Base RPC. Useful for counterparty and wallet checks.$0.02 Base790 ms2 payers100% up
  50. 95api.solenrich.com/entrypoints/stonk-alerts/invokeWatchlist alerts for up to 25 reward coins since `since`: payout_landed, payout_stale (no payout for 24h+), stopped_trading (no 24h volume), holders_change (±10% default), and rewards_since (paid to holders, quote + USD). Plus current payout status per coin. From the 10-minute index in milliseconds; poll it and pass checked_at back as since.$0.02 Solana740 ms2 payers100% up
  51. 95kronossignals.com/api/v1/alerts/ethReal-time market-regime alerts for any of the 17 supported crypto assets: volatility squeeze, breakout, funding-rate extreme, open-interest surge — derived from live OKX perpetual swap data and the Kronos regime engine. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE. Pay-per-call via x402 on Base USDC. $0.02/call.$0.02 Base506 ms2 payers100% up
  52. 95twitter.surf.cascade.fyi/api/v1/twitter/trendsTrending topics$0.001 Solana915 ms2 payers100% up
  53. 95surf.cascade.fyi/api/v1/twitter/trendsFetch trending topics (by WOEID)$0.001 solana802 ms2 payers100% up
  54. 95api.solenrich.com/entrypoints/stonk-reward-risk/invokePayout status for a StonkFun reward coin — what a holder observes: PAYING (payout in the last 24h), STALE, NEVER, or NOT_REWARD — plus trading cost (tax bps, round-trip %) and a 0-100 health score read from the chain: fee bps and cap, withdraw authority (must be StonkFun's distributor), fee mutability, distributions and recency, flywheel, holders and concentration, quote category, age. Call before sizing a reward-coin position.$0.005 Solana472 ms2 payers100% up
  55. 95search.cyberwarex.com/search-contentsWeb search with page contents extracted (up to 5 pages)$0.006 Base482 ms2 payers100% up
  56. 95x402.ochinimus.app/api/base-balanceERC20 and native ETH wallet balance on Base or Ethereum mainnet, for a 0x address or an ENS name. decimals() and symbol() are read from the contract at request time rather than assumed, because assuming 18 reports a USDC balance a trillion times too large. Use when you need to answer: What does this EVM address hold? ENS is resolved through two independent resolvers and the answer is used only…$0.002 Solana528 ms2 payers100% up
  57. 95agdata.shveik.dev/x402/linkedinLook up one public LinkedIn profile per call. Pass {query} as a username (jane-example), a profile URL or a URN; there is no limit field. The normalized object holds name, first_name, last_name, headline, about, location, country_code, current_company, followers, connections, avatar, plus experience (title, company, start_year, end_year, is_current) and education (school, degree, field, years). Email addresses are not returned.$0.033 Base543 ms2 payers100% up
  58. 95svm402.com/holdcheck/:addressHeld-position integrity check — is a token you hold STILL clean? Pass your entry-time liquidity as a baseline. Five tripwires: mint/freeze authority reactivated, honeypot, liquidity collapse (<25% of baseline), risk transformation. Verdict CLEAN / CHEAT_RISK / DEGRADED. Call this on tokens you hold to catch post-buy rug mechanics. — $0.01 USDC$0.01 Solana462 ms2 payers100% up
  59. 95fiatdock.com/v1/web/readRead any public web page as clean text: title, description, canonical URL, the readable body with scripts, styles and navigation stripped, the first 50 links resolved to absolute URLs, and a word count. One URL in, up to 100,000 characters out; redirects are not followed, and a page with no readable text (JavaScript-only) is 422 and not charged. Pay-per-call via x402. An empty body is answered for the published example page (https://example.com/); send {"url":"https://…"} for any other page.$0.0018 Base806 ms2 payers100% up
  60. 95api.erb-llm.com/v1/longLong-form tier of a private, self-hosted LLM inference service: an 8,192-token output ceiling on a local open-weight model for summarization, drafting and multi-paragraph answers. OpenAI-compatible chat completions: send a messages array, receive standard chat.completion JSON. Pay per call in USDC on Base via x402 - no API key or account. Use the cheaper quick tier (4,096 tokens) for short answers and tool calls.$0.05 Base903 ms2 payers100% up
  61. 95api.erb-llm.com/v1/chat/completionsPrivate, self-hosted LLM inference service for agents: a local open-weight model serving OpenAI-compatible chat completions. Prompts never leave this machine - use it where data can't go to OpenAI/Anthropic. Pay per call in USDC on Base via x402, no API key or account. Chat tiers by output ceiling (quick 4,096 / long 8,192 / extended 32,768 tokens) plus cheap 768-dim embeddings for RAG and semantic search. Send a messages array, get chat.completion JSON. No wallet? Free trial: POST /v1/trial.$0.005 Base903 ms2 payers100% up
  62. 95chain.tollkit.dev/chain/priceCrypto token price in USD: give a token address (or "SOL") on Base, Ethereum or Solana, get its live price from the deepest DEX pool, with the pool's liquidity.$0.002 Base653 ms2 payers100% up
  63. 95data.tollkit.dev/weatherWeather forecast and alerts: give a latitude and longitude in the US, get the 7-day forecast (temperature, rain chance, wind) and any active weather alerts from the National Weather Service.$0.002 Base592 ms2 payers100% up
  64. 95data.tollkit.dev/fxCurrency exchange rates: convert an amount between currencies such as USD, EUR, GBP and JPY at the European Central Bank reference rate, today or on a past date.$0.002 Base550 ms2 payers100% up
  65. 95data.tollkit.dev/ipIP geolocation: give an IPv4 or IPv6 address, get its country, region, city, continent and approximate coordinates.$0.002 Base538 ms2 payers100% up
  66. 95chain.tollkit.dev/chain/checkToken safety check before you buy, send or accept a token: give its address, get supply, mint and freeze authority, live price and liquidity, with warnings.$0.004 Base533 ms2 payers100% up
  67. 95orchard-data.letom1176.workers.dev/api/stocktwits-trendingStockTwits trending symbols right now, with watchlist counts. The other half of retail attention, separate from Reddit. JSON.$0.003 Base631 ms2 payers100% up
  68. 95x402.tbs-digital.com/weather/agricultureSoil and agriculture intelligence for grower, agronomist and farming agents at any lat/lon. Returns live soil moisture at four depths, soil temperature at 0/6/18/54 cm, reference evapotranspiration (ET0), vapour pressure deficit and frost risk. For irrigation scheduling, soil-health monitoring and crop management.$0.001 Base429 ms2 payers100% up
  69. 95gigsai.xyz/v1/chat/completionsCall when you need an LLM completion and have no API key: OpenAI-compatible chat completions (DeepSeek chat model), pay per call. Up to 16000 characters in, 512 tokens out, no streaming. Invalid requests are not charged.$0.002 Base963 ms2 payers100% up
  70. 95extract.tollkit.dev/extract/batchProduct price comparison: give up to 5 product page URLs, get the price, currency, stock status and name for each in one call, to compare stores.$0.04 Base557 ms2 payers100% up
  71. 95extract.tollkit.dev/extractProduct price lookup: give a product page URL, get the price, currency, stock status, name, SKU and images as clean JSON, read from the rendered page and the store's own schema.org data.$0.01 Base523 ms2 payers100% up
  72. 95ausca.com/v1/extend-inboxAdd purchased time to the current expiry of one active receive-only inbox. The same inbox id, address, messages, read/delete capability, and limits remain in place. Deleted or expired inboxes cannot be revived, and prepaid expiry cannot exceed 30 days from the extension time.$0.05 Base594 ms2 payers100% up
  73. 95fractalai.net.co/api/x402/attest-decisionPay-per-Attestation: an AI agent pays to seal its own decision (input hash, output, model, timestamp) in FractalAI's post-quantum L1 — Dilithium-3 (NIST FIPS 204) signed, Black-Box chained, on-chain anchored (VAID-1). Returns a re-verifiable receipt. Built for EU AI Act Art.12 record-keeping. x402-native.$0.05 Base343 ms2 payers100% up
  74. 95receipt.schemasure.com/v1/tx/receipt-verifyCheck whether a mined Base transaction did what your agent meant it to do. Fetches the receipt, decodes its ERC-20, ERC-721 and ERC-1155 transfer and approval logs, and reports each declared movement as matched, missing or short, with the observed amount beside the expected one. Catches reverts, success with no effect, fee-on-transfer skims and transfers to recipients you never named. Returns unknown rather than guessing. Not a guarantee that a transaction was safe.$0.01 Base654 ms2 payers100% up
  75. 95payee.schemasure.com/v1/guard/payeePre-flight a Base payment destination before you send. Verifies the EIP-55 checksum, measures distance from an address you expect — catching a mistyped digit and the shared prefix-and-suffix shape of a ground look-alike — flags the zero address, burn sinks and precompiles, refuses a token offered as its own payee, and reports whether the destination can receive the asset. Returns unknown rather than guessing when bytecode does not decide it. Not a judgement of the counterparty.$0.01 Base673 ms2 payers100% up
  76. 95chainstate.schemasure.com/v1/chain/stateProfile a Base address in one call instead of four to six lookups. Returns contract or externally owned plus code size, proxy detection across all seven slot layouts including the legacy OpenZeppelin slot Base USDC uses, the resolved implementation, ERC-165 and behavioural ERC-20 detection, token metadata, requested ERC-20 balances, and denylist hits. Answers unknown rather than guessing, and null rather than false when a contract stays silent. Not a guarantee that an address is safe.$0.01 Base634 ms2 payers100% up
  77. 95miorail.xyz/api/x402/intelligence/v1/b20/liquidity-evidenceMiorail x402 paid resource$0.002 Base787 ms2 payers100% up
  78. 95api.macaroonnetwork.com/execute/merchant-trust-check-v1Composite trust check for a merchant domain before an agent recommends or transacts with it: live DNS/SSL/RDAP domain signals, same-origin shipping/returns/contact policy-page presence, UK Companies House registration match (GB-only), and US FDA + UK OPSS product recall/safety alert flags. Built entirely from already-cleared internal capabilities and direct, robots.txt-respecting fetches of the merchant's own public pages -- no new third-party licensed dataset. Not a fraud or compliance determin$0.005 Base535 ms2 payers100% up
  79. 95api.loopholetape.com/v1/base/launches/sinceNew Solana tokens as they launch on pump.fun: a cursor feed of new memecoin launches with rug probability and graduation odds ($0.001 per poll). Use when a bot polls for newly launched Solana tokens on pump.fun with their calibrated odds; for a one-off screen of the last hour use GET /v1/launches/recent, and for one mint the $0.005 rug check.$0.001 Base596 ms2 payers100% up
  80. 95api.discoverdmc.cloud/validate/domainDNS check for a domain: does it resolve, plus A, MX and NS records. Input: d.$0.001 Base485 ms2 payers100% up
  81. 95cryptyx.ai/api/v1/harness/snapshotCanonical harness tear-sheet — one call returns totals (fires / boundary / silent / first-ever), top-5 fires by confidence, first-ever prints (5-year rarity), boundary watchlist (near-fire ranked by distance-to-trigger), and silent fade setups. Every setup carries plain-English composition (via ref.metric_display_labels) so responses never leak raw metric_id strings. Priced cheap so polling patterns stay economically viable — every MCP skill instructs Claude to call this FIRST as the canonical orientation. Scope: apex (BTC/ETH/SOL default), all (33-asset curated universe), or asset:{SYMBOL} for single-asset lens.$0.005 Base379 ms2 payers100% up
  82. 95cryptyx.ai/api/v1/harness/first-everFirst-ever fires — setups that fired for the FIRST TIME in prospective history. Rarest, highest-signal events in the canonical catalog. A setup with state = first_ever has never fired before since it was added. Historical backtest reflects behaviour on ADJACENT setups or partial configurations, not this exact combo — treat as structurally important context, not directional recommendations. Applicable across the CRYPTYX 200+ asset coverage universe (BTC, ETH, SOL, top-cap + long-tail); backtested scope is the 33-asset curated slice.$0.01 Base653 ms2 payers100% up
  83. 95cryptyx.ai/api/v1/harness/watchlistNear-fire setups ranked by distance-to-trigger DESC (closest to firing first). Primary monitoring surface for autonomous agents — cheap to poll at 15-30 min intervals to detect when a queued setup is about to fire. Distance in sigma; 0.2 means one metric is 0.2σ from its threshold. Cheaper than polling /api/v1/harness/evaluations when you only care about near-fires. Applicable across the CRYPTYX 200+ asset coverage universe (BTC, ETH, SOL, top-cap + long-tail); backtested scope is the 33-asset curated slice.$0.01 Base748 ms2 payers100% up
  84. 95cryptyx.ai/api/v1/harness/evaluationsEvery canonical setup evaluation for a given day, filterable by state (fires / boundary / silent / first_ever), factor family, or asset. Includes z_scores per metric, distance_to_trigger, confidence. Distance is measured in sigma — positive = past threshold, negative = short of threshold. Boundary + first_ever states are the highest-signal reads. Applicable across the CRYPTYX 200+ asset coverage universe (BTC, ETH, SOL, top-cap + long-tail); backtested scope is the 33-asset curated slice.$0.01 Base638 ms2 payers100% up
  85. 95cryptyx.ai/api/v1/harness/setupsCanonical setup catalog list — 150 founder-approved multi-metric compositions across 8 factor families + cross-family fades. Filter by factor_family (TR/EFF/VOL/FLOW/FUT/OB/OPT/CORR/CROSS_FAMILY), tier (1-5), direction (long/short/neutral), asset (in applicable_assets), or durability_class (structural for 90d+ high-Sharpe, tactical for small-sample, hybrid for the rest). Each setup ships display_name, composition, primary_horizon, backtest snapshot pointer. The shipping surface — not a raw metric database. Applicable across the CRYPTYX 200+ asset coverage universe (BTC, ETH, SOL, top-cap + long-tail); backtested scope is the 33-asset curated slice.$0.01 Base606 ms2 payers100% up
  86. 95cryptyx.ai/api/triggers/customArbitrary trigger definition — POST any {type: z_score|z_differential|composite, ...} predicate and get the full institutional evidence envelope back. 5-year backtest, Sortino, max drawdown, profit factor, walk-forward IS/OOS, regime context, rolling hit rates. Enterprise tier because every request runs a live backtest (no cache). The extensibility endpoint: anything expressible in Metric Slicer becomes a triggerable institutional-grade primitive. Backtests run over the CRYPTYX 200+ tracked digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.$0.25 Base418 ms2 payers100% up
  87. 95402.com.tr/api/x402/bank-csvParse a bank CSV (comma/semicolon/tab, quoted fields) and map common headers (date/amount/debit/credit/balance/description, TR aliases) into one schema. Up to 500 rows. Best-effort.$0.01 Base616 ms2 payers100% up
  88. 95x402-gateway-production-1f21.up.railway.app/metadataExtract webpage metadata, OpenGraph and JSON-LD. Returns title, description, canonical URL, robots directives, headings, Open Graph, Twitter cards and structured data for one public URL per paid request.$0.001 Base309 ms2 payers100% up
  89. 95x402check.xyz/v1/risk-checkCheck a counterparty before paying: OFAC SDN, phishing and drainer feeds, a live watch of drainer infrastructure, transaction simulation and injected-instruction analysis. Returns a score and a signed ES256 attestation.$0.0035 Base891 ms2 payers100% up
  90. 95www.amnt.io/api/agent/amnt/die-cut-stickerDie-cut Sticker - Call when you need a sticker asset - a Discord or Telegram pack, merch, a docs illustration. Send the subject. Returns a 1024x1024 RGBA PNG with a genuinely transparent background and a bold outline around the subject, the way a printed die-cut sticker is drawn.$0.02 Base497 ms2 payers100% up
  91. 95api.agentline.cloud/v1/billing/topup/x402/payAgentLine gives AI agents real US phone numbers, inbound/outbound voice calls, AI receptionists, transcripts, inbound SMS and live phone events. Use REST or MCP without signup: recharge and save agent_token. This endpoint adds prepaid credit with Base USDC x402 or Tempo MPP. $1 minimum recharge; numbers $2/30 days; connected calls $0.10/min (first-minute minimum, then per-second); inbound SMS $0.02. Other endpoints use prepaid balance and do not accept payments.$1.00 Base723 ms2 payers100% up
  92. 95resolve402.dev/api/verify-emailEmail pre-check: syntax, MX records, mail provider (Google, Microsoft 365, OVH...), disposable, free webmail and role-account flags.$0.003 Base736 ms2 payers100% up
  93. 95sanctions.nsgoods.org/screen-urlSanctions check on who you are about to pay: give the x402 endpoint URL, we read its own 402 quote, pull every payTo (all networks) and screen each against OFAC, UN, EU and UK lists. Signed per-payee and overall verdict: deny on an OFAC match, review on a UN/EU/UK match or an unavailable list, clean otherwise. $0.01 in USDC on Base or Solana. A bad or non-x402 URL returns 400 with charged:false; you are never charged for an error. Free preview: GET /screen-url/preview$0.01 Solana691 ms2 payers100% up
  94. 95www.blockchainiq.co/api/x402/v1/dashboards/:slugCrypto analytics dashboard data with an analyst read on each chart. Pick one by slug: market-overview, on-chain-metrics, defi-tvl-and-yields, stablecoin-story, tokenized-rwas, leverage-and-derivatives, liquidity-and-venues, volatility-and-execution, corporate-treasuries, crypto-fundraising, exploit-losses, xrp-ledger, bitcoin-network, ethereum-network, base-network, arbitrum-network, aptos-network, provenance-network, bnb-network. Every panel as JSON. $0.25 per call. Blockchain IQ.$0.25 Base561 ms2 payers100% up
  95. 95api.edifiedlab.com/v1/market/vol-regimeOptions-style volatility regime: ATR percentile and market-regime detection for a futures instrument.$0.011 Base826 ms2 payers100% up
  96. 95mart402.com/v1/pdf-infoPDF facts before you pay for parsing: page count, metadata, per-page text volume, scanned-or-not estimate. 0.001/call.$0.001 Base322 ms2 payers100% up
  97. 95x402.agentindex.world/extractExtract structured data from a URL or raw text into strict JSON matching a schema you provide. Fields the content doesn't support come back null - never an invented or approximate value, and an unmatchable schema returns an explicit error. Try GET /extract/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.$0.002 Base740 ms2 payers100% up
  98. 95anime-intelligence.goodmy0312.workers.dev/v1/identifyMultilingual vague-to-canonical shopping intelligence for physical anime collectibles. Accept requests such as 'I want a ONE PIECE figure', 'a big cheap Pikachu plush', '部屋に飾れるかっこいいゾロ', or 'a Japan-only Luffy figure' even when the exact product is unknown. Interpret hard identity constraints plus soft preferences such as budget, color, size, style, gift/display use, condition, availability and buyer location; rank compatible canonical products, re...$0.005 Solana751 ms2 payers100% up
  99. 95squeezeos-api.onrender.com/api/signals/full/AAPLSML Sovereign Signal — combined verdict$0.10 Base559 ms2 payers100% up
  100. 95intel.twzrd.xyz/v1/intel/read-pageSigned page read (0.005 USDC): the URL as clean Markdown plus an Ed25519 receipt binding its SHA-256, the provider, and the observation time. Proves what your agent read. Body: {"url": "https://..."}. Sponsored Solana accepts require a payment client that honors accepts[].extra.feePayer (for example @x402/svm ExactSvmScheme); AgentCash cannot settle that Solana rail.$0.005 Solana692 ms2 payers100% up