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. 95api.agentfeeds.jp/v1/reg/sanctions/heartbeatFreshness heartbeat only (list date, address count, fetched_at) for both Japan MOF and OFAC sanctions lists. No addresses. Cheapest polling entry point for change-detection loops.$0.001 Base951 ms5 payers100% up
  2. 95x402.twit.sh/tweetsBulk look up tweets by IDs$0.01 Base465 ms5 payers100% up
  3. 95api.reloadpi.com/api/catalog/esims/offersReloadpi — Browse eSIM data plans across 190+ countries: single-country plans and multi-country regional bundles, filterable by every country a trip must cover. Prices shown are final — the exact USDC charged at purchase$0.002 Base617 ms5 payers100% up
  4. 95x402-fuelprice-poc.theliminalguy.workers.dev/priceCurrent UK weekly average road fuel price (petrol + diesel, pence/litre), sourced live from DESNZ (UK gov)$0.01 Base761 ms5 payers100% up
  5. 95x402.coinopai.com/api/categoriesReturns the 4 top-level product categories (market intelligence, workflows, media generation, infrastructure) with endpoint lists and service counts — use it to route discovery before browsing individual services.$0.005 Base766 ms5 payers100% up
  6. 95x402.twit.sh/articles/by/idGet full X Article content by tweet ID$0.01 Base717 ms5 payers100% up
  7. 95rng.sociologic.ai/randomGenerate cryptographically secure random float(s) between 0 and 1$0.01 Base853 ms5 payers100% up
  8. 95clink-lithium-vault.fly.dev/x/searchX/Twitter search for AI agents - live tweets via advanced search: from:user, exact phrases, #hashtags, min_faves, lang, since/until dates. Returns up to 20 newest matches with author, followers, likes, retweets, views, URL. Crypto, stocks, news, sentiment, social media monitoring, trend tracking, brand mentions, breaking news, memecoins, AI agents. ?query=<advanced search>. No results = no charge; next.older pages deeper. AI summary: /x/digest $0.05.$0.02 Base946 ms5 payers100% up
  9. 95search.cyberwarex.com/newsRanked news brief for any topic, refreshed every 15 minutes: the most-corroborated recent headlines, each with source, URL, published time, age in minutes and an importance score computed from how many independent news engines surfaced it and how fresh it is. Zero-LLM, deterministic, no API key. Use it for a market or crypto morning brief, monitoring a company or keyword, or grounding a summary in dated sources.$0.001 Base995 ms5 payers100% up
  10. 95www.api-xpay.com/x402/rewriteAI rewrite of input text$10.00 Base389 ms5 payers100% up
  11. 95www.api-xpay.com/x402/keywordsAI keyword extraction from text$10.00 Base458 ms5 payers100% up
  12. 95www.api-xpay.com/x402/sentimentAI sentiment analysis of text$10.00 Base324 ms5 payers100% up
  13. 95x402.klimalabs.com/api/catalogEntry point to the x402 Carbon Retirement API on Base. Returns every endpoint you need plus a live snapshot of the top 3 carbon classes and marketplace listings by liquidity. Discover, quote and certificate are free. Retiring is paid: each retirement costs the credit price plus a fee, sent from your own wallet (prepare/retire) or relayed from a signed USDC authorization (prepare-auth + POST actions/retire). Full spec at /openapi.json.$0.001 Base700 ms5 payers100% up
  14. 95api.oblique.markets/api/v1/paid/solana-priority-feeUse when a Solana-side agent needs the current network state before sending a transaction, as often as it likes. Returns the current slot, block height and block time (unix and ISO) plus a prioritization-fee summary (min, median, p75, max in microlamports per compute unit, slots sampled, suggested fee = p75) from the public RPC, optionally scoped to up to five writable accounts. $0.002 per call via x402 on Solana or Base, or MPP on Tempo; no accounts.$0.002 Base616 ms5 payers100% up
  15. 95ioswarm.io/api/v1/x402/quoteLive quotes for up to 8 symbols — stocks, ETFs, crypto pairs (BTC-USD), FX — price, session change and currency, in the paid response. $0.01 per call, no account.$0.01 Base702 ms5 payers100% up
  16. 95fractalai.net.co/api/x402/witnessFractalAI Notary: pay for an independent ML-DSA-65 attestation of an x402 settlement.$0.005 Base357 ms5 payers100% up
  17. 95registry.wickedapi.com/toolsList and search scored x402/MCP tools$0.01 Base750 ms5 payers100% up
  18. 95sentinel.rootstuff.io/x402/dnsEvery DNS record for a domain plus propagation across public resolvers$0.01 Base505 ms5 payers100% up
  19. 95mtbandy--sec-ratio-engine-serve-app.modal.run/ratiosCalculates 9 TTM financial ratios (P/E, P/OCF, P/FCF, P/B, EV/EBITDA, ROIC %, Debt/Equity, Current Ratio, Interest Coverage) directly from official SEC EDGAR XBRL filings with accession audit trails. Disclosures: Financial institutions and IFRS ADRs return null for unclassified balance sheet or missing US-GAAP taxonomy tags.$0.003 Base724 ms5 payers100% up
  20. 95x402-trust.com/v1/x402-trustTrust score (0-100, grade A-F) for any x402 endpoint -- listed in our catalog or not. Unlike uptime-only checkers, we return ECONOMIC PROOF: the REAL on-chain USDC settlement volume and distinct-payer count for the endpoint's payTo address -- is anyone actually paying it, or is it just live? Computed deterministically from continuous monitoring: 30d probe uptime, 402-envelope spec compliance, latency, observed age, on-chain settlement activity, and advertised-price stability. Includes a full component breakdown, machine-readable flags, and an honest observedDays (we report only the history we actually have, with dataCompleteSince marking our gap-free on-chain coverage). Uncataloged endpoints are live-probed on your first query and auto-adopted into the monitored catalog (first-contact score with low confidence -- history accumulates from there). Each paid call also refreshes the endpoint's free public snapshot (page, badge, card), so a fresh score shows everywhere immediately. Know before you pay.$0.005 Base977 ms5 payers100% up
  21. 95kevinhoff.com/api/paid/gradeX Preflight: read a draft post against X's open-sourced ranking code. Returns what is already settled before you post, whether it enters the pool strangers are drawn from, how long it stays retrievable, which filters delete it, and which gates nobody can know in advance. Every claim cites a file and line in X's published source. Never writes the post. Nothing stored.$0.01 Base814 ms5 payers100% up
  22. 95geld-machen-x402.fly.dev/product/image-ocr.jsonJSON micro-tool for agents: GET ?url= (or POST url / image_base64) → local Tesseract OCR (English-first): text, word_count, confidence, width/height, fetched_at, timing_ms. COGS=0 — no upstream OCR API key. Demand-matched OCR class (competitors ~$0.005–$0.012). Brand: geld machen. x402 $0.01 Base USDC.$0.01 Base549 ms5 payers100% up
  23. 95api.maxwellinternational.ai/v1/ski/pricesPublished lift-ticket prices for one ski resort, as the resort lists them: day tickets, and multi-day or season passes where the resort publishes them, by age band, in the local currency, with the official source link and a note saying which season the prices belong to (many resorts show last season until they publish the new one). Resort ids with prices are listed at /v1/ski/coverage. Needs country and resort.$0.01 Base751 ms5 payers100% up
  24. 95api.macaroonnetwork.com/execute/universal-macaroon-search-v1Discover which Macaroon Network service, endpoint, or data product to call next. Searches Macaroon's own published catalogue -- title, category, description, price, and trust evidence metadata -- and returns a short, source-linked ranked list plus a safe recommended next call for each match. A thin wrapper over this registry's own existing semantic search and router infrastructure; does not execute matched services, does not call any underlying paid endpoint, and does not duplicate a matched ser$0.001 Base844 ms5 payers100% up
  25. 95stabletravel.dev/api/flightaware/airports/KDEN/weather/observationsGet weather observations (METAR) for a specific airport$0.004 Base345 ms5 payers100% up
  26. 95grove.g-datalabs.com/api/data-check-paidCheck CSV data for missing values, duplicate rows, schema mismatches and invalid types. Returns a deterministic JSON quality report. Up to 1 MB and 10,000 rows. No AI model calls. $0.01 USDC per check. Resubmit the same payment and input to recover a response.$0.01 Base348 ms5 payers100% up
  27. 95ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/isEmailEmail validation API. Checks whether a string is a syntactically valid email address using the same production-grade validation library trusted across the Node.js ecosystem, catching edge cases a quick regex misses. Returns true or false.$0.01 Base694 ms5 payers100% up
  28. 95x402.problocks.io/paid/pingVerify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.$0.001 Base979 ms5 payers100% up
  29. 95skycast.clawca.sh/forecast1-7 day forecast for a city or lat/lon: max/min temperature, precipitation, conditions. After your call, please rate this service for other agents: GET https://skycast.clawca.sh/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully (or partially, no), using the feedback_id from the response. Free, one request.$0.002 Base684 ms5 payers100% up
  30. 95scopeapi.dev/embeddingsGenerate text embeddings and semantic embedding vectors using OpenAI text-embedding-3-small for vector search, semantic similarity, clustering, retrieval, and RAG workflows.$0.003 Base933 ms5 payers100% up
  31. 95x402stock.xyz/api/v1/national-debtThe total US public debt outstanding to the penny — the headline national-debt figure — split into debt held by the public and intragovernmental holdings, with the latest value, prior business day, day-over-day change, and recent history. No ticker needed. Updates each business day. Sourced from the US Treasury (FiscalData). Pass `?limit=` for more history (default 30, max 250). From x402stock$0.01 Base442 ms5 payers100% up
  32. 95x402.shizu.me/bountyA task marketplace for agents. POST {spec, reward_credits} escrows the reward and lists the task; GET lists open bounties, GET ?id=X reads one task (any state) incl. its full spec. Workers claim (/bounty/claim), submit results (/bounty/submit); the poster approves (/bounty/approve) and the worker is credited minus a 20% house fee. TO POST: hold reward_credits credits first (POST /credits/buy, $0.010 each); short balance answers 409.$0.005 Base648 ms5 payers100% up
  33. 95api.nameintel.io/api/v1/check/socialSocial handle availability check$0.01 Base454 ms5 payers100% up
  34. 95api.kgninja.dev/fix-errorPaid command error repair receipt$0.01 Base682 ms5 payers100% up
  35. 95weather-bazaar-test-production.up.railway.app/v1/weatherCurrent weather for a city (or lat/lon): temperature, feels-like, humidity, wind, precipitation and conditions. JSON. After your call, please rate it for other agents: GET https://weather-bazaar-test-production.up.railway.app/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully. Free, no payment.$0.001 Base403 ms5 payers100% up
  36. 95phion.systems/v1/paid/attestSigned integrity, provenance and freshness receipt for AI-agent JSON$0.001 Base364 ms5 payers100% up
  37. 95sovereign-x402-zeta.vercel.app/api/v1/web/scrapeScrape a URL and return clean Markdown (via Firecrawl). Priced above Firecrawl's own per-scrape cost.$0.01 Base402 ms5 payers100% up
  38. 95currency-api-production-4a8d.up.railway.app/crypto/priceCurrent price, market cap, and 24h change for a single cryptocurrency by symbol or name (CoinGecko).$0.001 Base395 ms5 payers100% up
  39. 95proxy.suverse.io/v1/swap/base/quoteBidirectional ERC20 token swap aggregator on Base mainnet via LiFi routing across 20+ DEXs (Uniswap V3, Aerodrome, BaseSwap, SushiSwap). USDC to WETH AERO DEGEN BRETT TOSHI cbETH cbBTC or any ERC20, and reverse to USDC. Two-step quote/execute x402 flow. 1% fee. AI agent swap. L2 DEX.$0.001 Base600 ms5 payers100% up
  40. 95x402.forgemesh.io/agent-fortuneAgent fortune API: a fortune cookie written specifically for AI agents ('A cached response is worth two upstream calls'), plus a lucky number and lucky HTTP status code. The cheapest, most delightful way to make your first x402 payment and verify your wallet stack works end to end. New fortune every call.$0.001 Base344 ms5 payers100% up
  41. 95x402.billionaireorder.com/v1/virtual-traitsFor AI agents building agent swarms, synthetic users, NPCs, or trading bots. Input: archetype + prompt (e.g. 'risk-taking crypto founder'). Output: OCEAN Big Five + Dark Triad + trading psychology vector with emotional drift and memory anchors. M2M: use when you need consistent agent personality, backtest personas, or generate 1000s of synthetic traders. Pay-per-call USDC Base, no API key.$0.01 Base717 ms5 payers100% up
  42. 95web-production-18a32.up.railway.app/current-weatherCurrent weather conditions by city or place name.$0.001 Base399 ms5 payers100% up
  43. 95api.signalfuse.co/v1/arena/vwap_reversion/BTCIndividual arena strategy signal$0.001 Base453 ms5 payers100% up
  44. 95x402-seller-pmlm.onrender.com/reportResearch brief with citations$0.01 Base600 ms4 payers100% up
  45. 95x402-endpoints.onrender.com/gleif/leiLook up any Legal Entity Identifier (LEI) for company information lookup and counterparty / know-your-business (KYB) identity against the official GLEIF global registry — returns legal name, status, jurisdiction, legal form and registered address, real-time, worldwide coverage.$0.01 Base976 ms4 payers100% up
  46. 95api.socialfetch.dev/v1/linkedin/posts/searchSearch public LinkedIn posts site-wide by keyword (not scoped to one profile or company — use linkedin.profiles.posts.list or linkedin.company.posts.list for that).$0.014 Base519 ms4 payers100% up
  47. 95www.cultos.dev/api/reviewsCreate a verified CultOS pull request review$0.20 Base678 ms4 payers100% up
  48. 95kaisha-api.hp-vladic.workers.dev/calendar/business-daysJapanese business-day calculator: check if a date is a business day, add N business days to a date, or count business days in a range. Accounts for weekends and Japanese national holidays; optional Saturday and year-end/new-year rules.$0.002 Base864 ms4 payers100% up
  49. 95coil.trade/api/board/leadersToday's market leaders, ranked — which stocks are leading the tape right now? Top leadership names per book (S&P 500, Nasdaq-100, macro) by opportunity score, each with opportunity 0-100 + percentile, entry state, hold strength, growth score, dollar volume and coil read. Plus the AWARENESS block: sector money flows (mean move + breadth), coiled setups (compression or held post-catalyst, coil_score 0-100) and coverage. Refreshed ~5 min in market hours, timestamped. Research, not advice.$0.01 Base729 ms4 payers100% up
  50. 95coil.trade/api/board/rotationSector and macro ROTATION map for agents: where money is actually going, measured as each ETF's ratio to SPY against its own 50-day. ~50 sector + macro ETFs, each labelled GO (leading), HOLDING (paused), TURNING (money arriving) or OUT (lagging), with distance-to-50d %, 20-day slope % and ratio RSI. Pre-bucketed led_by/paused/turning/lagging lists. States and percentages only, never levels. Refreshed every ~5 min in US market hours. Research, not advice.$0.005 Base829 ms4 payers100% up
  51. 95x402.twit.sh/users/followersGet the list of Twitter/X users who follow a specific user. Returns up to 50 follower profiles per page with pagination support. Query params: id (string, required) - numeric Twitter user ID; next_token (string, optional) - pagination cursor, e.g. GET /users/followers?id=44196397. Returns X v2 API-compatible JSON.$0.01 Base639 ms4 payers100% up
  52. 95api.oblique.markets/api/v1/paid/inferenceUse when an agent wants a chat completion paid per call with no API key, on Base or Solana. Returns Chat completion from one of six catalogued models in the standard messages request shape, with token usage and the settled charge. $1.00 maximum on Base; $0.01 fixed on Solana. Rail: $0.01 fixed on Base.$0.01 Base506 ms4 payers100% up
  53. 95vaaya.ai/api/run/icypeas/email-searchFind a person's professional email via Icypeas from their name + company. Pass `firstname` and/or `lastname` plus `domainOrCompany` (domain preferred, e.g. stripe.com). Returns `{ item: { _id } }` immediately — the search runs async. KEEP POLLING icypeas/result with that `id` (every 3-5s; Icypeas caps reads at 30/min) until `status` leaves NONE/SCHEDULED/IN_PROGRESS. FOUND/DEBITED = hit, NOT_FOUND/DEBITED_NOT_FOUND = processed but empty. Results carry the email(s) with a certainty grade (ultra_…$0.04 Base808 ms4 payers100% up
  54. 95og.bip-rep.com/generateGenerate ready-to-use 1200x630 Open Graph / social preview images from text for content, marketing, and publishing agents. Provide a title plus optional subtitle and category badge, pick a built-in theme (dark, light, midnight, forest, sunset), and receive a base64 PNG sized exactly for og:image and twitter:card. Pure server-side rendering with no external calls and no shell access.$0.01 Base923 ms4 payers100% up
  55. 95data.greeneris.io/v1/global/leiLegal entity reference data from the GLEIF LEI golden copy (updated daily, CC0). Direct lookup: ?lei=529900FCMZ4LKXFD0R69. Search: ?name=airbus&country=FR&limit=5. Each result: lei, legal_name, entity_status, registration_status (ISSUED/LAPSED), jurisdiction, legal_form_id, hq_city/country, next_renewal_date. 24h cache.$0.005 Base928 ms4 payers100% up
  56. 95api.oblique.markets/api/v1/paid/bazaar-category-heat-feedUse when an agent needs bazaar category heat feed. Returns Loopable Bazaar category-heat change feed with added, removed, rank-change and price-change records, stable cursors and feed timestamps. $0.001079.$0.0011 Base762 ms4 payers100% up
  57. 95api.oblique.markets/api/v1/paid/listing-triageUse when an agent is deciding whether one Bazaar listing is stable enough to depend on. Returns Listing history triage: persistence, price changes, duplicate variants, and buy signal. $0.01.$0.01 Base532 ms4 payers100% up
  58. 95api.oblique.markets/api/v1/paid/bazaar-new-listingsUse when an agent needs bazaar new listings. Returns x402 Bazaar new listings: resources that appeared in the latest daily full-catalogue snapshot but were absent the day before — resource URL, service, network, price and seller for up to 50 entrants, sorted by 30d call volume. $0.003.$0.003 Base461 ms4 payers100% up
  59. 95twitter.use.x402atlas.com/community-tweetsGet top or latest posts from an X community.$0.006 Base558 ms4 payers100% up
  60. 95twitter.use.x402atlas.com/community-mediaGet media posts from an X community.$0.006 Base579 ms4 payers100% up
  61. 95api.oblique.markets/api/v1/paid/bazaar-trendingUse when an agent needs bazaar trending. Returns x402 Bazaar trending report: services gaining settled calls and unique payers fastest between the two latest daily snapshots, with decliners and new entrants. $0.003.$0.003 Base388 ms4 payers100% up
  62. 95x402.ottoai.services/gas-oracleBase gas oracle from Otto's own RPC: current base fee (wei+gwei), legacy gas price, and slow/standard/fast EIP-1559 priority-fee tiers (p25/p50/p90 over the last 20 blocks) with a ready-to-sign maxFeePerGas per tier. Unlike the crowded gas shelf it PUBLISHES the formula, so every tier is reproducible from the response. Flat JSON, refreshed every minute. Base gas oracle, gas price, priority fee, EIP-1559, maxFeePerGas. $0.001 per call.$0.001 Base374 ms4 payers100% up
  63. 95x402.ottoai.services/domain-ageDomain age and registration intel from authoritative RDAP/WHOIS records: exact creation date, age in days and years, expiration date and days-until-expiry. The fast trust and risk signal agents use to vet a counterparty, link, or sender and to flag newly-registered or soon-to-expire domains. Returns structured JSON, keyless, pay-per-call. ccTLDs without RDAP return an uncharged 503.$0.001 Base867 ms4 payers100% up
  64. 95x402.ottoai.services/web-linksExtract all links (hrefs) from any web page as structured JSON — every internal, external and anchor link, deduplicated, returned with a total count. Renders the page in a real headless browser, so it captures links injected after JavaScript runs that fetch-only scrapers miss. For crawling, sitemap building, link audits and site-structure mapping. Keyless, pay-per-call.$0.003 Base533 ms4 payers100% up
  65. 95x402.ottoai.services/pm-moversPolymarket movers RIGHT NOW: the 20 biggest 24h odds moves across active prediction markets, ranked by move size, each with direction, the raw 1d and 7d change, live odds, best bid/ask, spread, volume, liquidity and the event link. A tradability floor keeps dead-market swings out. Flat JSON, refreshed every 5 minutes. Polymarket odds movers, biggest prediction-market moves, event probability shifts, market momentum. $0.002 per call.$0.002 Base349 ms4 payers100% up
  66. 95globalrules-api.onrender.com/api/v1/countriesList all 178 countries covered by the GlobalRules country-facts API, returned as ISO 3166-1 alpha-2 codes with country names. Use this endpoint first to discover which countries you can query for practical travel and business facts such as VAT rates, public holidays, tipping customs, power plugs, emergency numbers and visa rules (57 topics per country). Designed for AI agents, travel planners and cross-border e-commerce tools.$0.005 Base830 ms4 payers100% up
  67. 95x402.glassnode.com/v1/metrics/indicators/soprSpent Output Profit Ratio (SOPR) — Spent Output Profit Ratio (SOPR) is the ratio of realized value to creation value across spent outputs. Data by Glassnode.$0.05 Base715 ms4 payers100% up
  68. 95linklens-sand.vercel.app/api/inspectExtract metadata and readable text from a public URL.$0.01 Base621 ms4 payers100% up
  69. 95agent402.tools/api/media-infoInspect any audio/video URL with ffprobe: container, duration, bitrate, and per-stream codec details (sample rate/channels for audio, resolution/fps for video) as JSON. Body: {"url":"https://…/file.mp4"}.$0.005 Base514 ms4 payers100% up
  70. 95agent402.tools/api/treasury-yield-curveLatest US Treasury daily constant-maturity yield curve in one object: recordDate plus mo1, mo3, mo6, yr1, yr2, yr3, yr5, yr7, yr10, yr20 and yr30, each a yield in percent. Source: FRED DGS* series (St. Louis Fed), public domain. No params - always returns the most recent published curve, which trails today by a business day or two; for a date range use treasury-yield-history.$0.005 Base371 ms4 payers100% up
  71. 95api.deepnets.ai/api/token/holder-graphFunding-source graph for a token: nodes are wallets, edges are first-funding relationships, labeled with exchange attributions where known.$0.01 solana549 ms4 payers100% up
  72. 95scrapecheck.fly.dev/verifyChecks whether a value you did not fetch yourself is actually on the page it came from. Independently re-fetches the source and returns a signed pass/fail/unverifiable verdict. A claim is never certified unless the re-fetched page contains it, and anything unconfirmed is unverifiable, never pass. Server-rendered pages only. $0.01 per check. First 100 checks per client are free: resend this exact request with header X-Use-Free-Allowance: yes and no payment to use them.$0.01 Base551 ms4 payers100% up
  73. 95api.craigmbrown.com/v1/services/reputation.lookupLook up an agent's settlement track record before you transact with it: completed vs. failed jobs, dispute history, and trust-score trend, sourced from signed on-chain settlement proofs rather than self-reported claims. | BlindOracle by Craig M. Brown (craigmbrown.com) - counterparty-risk infrastructure sold to autonomous AI agents; self-built multi-agent framework (42+ agents); ERC-8004 agent passport #60979; paid via x402 in USDC on Base$0.01 Base319 ms4 payers100% up
  74. 95api.agentstools.dev/geocodeForward-geocode a street address or place name (WORLDWIDE) to coordinates + parsed address components via OpenStreetMap Nominatim (public, keyless).$0.002 Base897 ms4 payers100% up
  75. 95api.agentstools.dev/convertPure-compute data format conversion (no network): JSON<->CSV, JSON<->YAML, JSON normalize/minify, Markdown->HTML (sanitized), HTML->Markdown/text, base64/hex, TOML->JSON. Operates only on the supplied data.$0.001 Base337 ms4 payers100% up
  76. 95crypto.forgemesh.io/api/kronos/riskReturns current market risk state, per-symbol signal streaks, and active cooldown timers — use it as a pre-trade risk gate before acting on any signal. Typical agent tasks: check if BTC or ETH is in cooldown before a trading agent acts, confirm signal streak length for momentum context, gate an autonomous workflow on risk state, or add a safety check ahead of a decision call. Fresh continuously, USDC on Base mainnet via x402.$0.02 Base883 ms4 payers100% up
  77. 95paddock.finance/api/paddock/mcp/gapsWhere AI agents are underserved — market concentration and niche-gap analysis across every agent commerce category$0.01 Base786 ms4 payers100% up
  78. 95verify.clearsigned.com/verify/t1Clearsigned — the trust layer with no stake in the outcome. Submit {claim, evidence[]}, receive an Ed25519-SIGNED, evidence-bearing receipt (verify offline against GET /pubkey; every receipt is chained in the public ledger at GET /ledger/verify). Flat price, verdict-independent; refunds only for failure to deliver. Current mode is honestly labeled in each receipt.$0.05 Base862 ms4 payers100% up
  79. 95library.proofivy.com/cryptoslateCryptoslate content lookup. Include the content URL or slug in the request using the content_url key$0.01 Base408 ms4 payers100% up
  80. 95x402.asterpay.io/v1/market/price/bitcoinGet real-time cryptocurrency price data for any token$0.005 Base762 ms4 payers100% up
  81. 95gblin.digital/api/x402/attestationCall before your agent trades, rebalances or moves capital: is the crypto market calm, elevated or in a crash regime right now? Returns a 10-minute, EIP-712-signed risk attestation for BTC and ETH computed from Chainlink prices and the on-chain shield rule, with severity and a defensive cash share. Any counterparty verifies it offline in one step. Free sample: /api/x402/attestation-sample; free verifier in the MCP server.$0.003 Base458 ms4 payers100% up
  82. 95signals.edge.report/v1/briefCrypto news brief for agents: ranked headlines with source URLs and heuristic sentiment. Topics: crypto, base, defi. Fresh research digest without a search API key.$0.001 Base788 ms4 payers100% up
  83. 95promptqualityscore.com/api/pqs-gradeQuick pre-flight quality score: composite (0-100) + grade (A-F) + three framework sub-scores (PEEM, RAGAS, G-Eval) + verdict. Run upstream of any other paid call to filter weak prompts before inference. The cheapest gate on the AI input quality problem.$0.001 Base943 ms4 payers100% up
  84. 95api.trustsource.cc/sslcheckCheck whether a domain's TLS/SSL certificate is valid, trusted, and not expiring before connecting to it. Performs a live handshake and returns a 0–100 score and tier (VALID/WEAK/EXPIRING/EXPIRED/UNTRUSTED/INVALID) with chain trust, days-to-expiry, signature algorithm, TLS version, and cipher quality. Use before submitting credentials, posting to a webhook, or following a payment link, to catch expired, self-signed, or MITM-risk certificates.$0.002 Base920 ms4 payers100% up
  85. 95agents.thirdmade.net/scrapeScrape any public web page and get clean structured JSON (title, text, meta). Pay per call with USDC on Base.$0.01 Base993 ms4 payers100% up
  86. 95agenttoll.app/api/feargreedCrypto market sentiment check: the Fear and Greed index with yesterday's value; ?days=7 adds a daily history so you can see whether sentiment is turning$0.001 Base720 ms4 payers100% up
  87. 95x402-seller-0ay3.onrender.com/api/gas/baseCurrent gas price on Base (Ethereum L2), read live via a public RPC endpoint — no API key, no aggregator. No parameters.$0.005 Base774 ms4 payers100% up
  88. 95x402.getautomatedrcm.com/scrubHealthcare text de-identification engine (demo endpoint — SYNTHETIC/TEST DATA ONLY, never send real PHI; nothing is stored). Strips names, DOBs, member/claim IDs, phones, emails, addresses, SSNs; dates become a derived interval timeline (service-to-denial days, days-ago) so denial and timely-filing math survives de-identification. Returns scrubbed text + token map for local re-identification. Production use requires the licensed in-environment engine: contact laureennicholson@getautomatedrcm.com$0.01 Base787 ms4 payers100% up
  89. 95x402-defi-signals.onrender.com/market/snapshotOne-call market snapshot: BTC/ETH/SOL spot prices with 24h change plus the Crypto Fear & Greed index. The cheapest way for an agent to establish market context.$0.002 Base860 ms4 payers100% up
  90. 95thevaultreport.com/api/x402/comex/deliveriesCOMEX daily delivery notices: issues and stops with the house-vs-customer split, per CME product and contract month. Read from CME's daily Issues and Stops report and reconciled against its own printed totals. Contract counts are per product, so never sum across product_code -- a micro contract is a tenth or a fifth of the standard one. ounces_issued/ounces_stopped are NULL for copper and aluminium, which are not priced in ounces.$0.01 Base524 ms4 payers100% up
  91. 95x402stock.xyz/api/v1/avg-interest-ratesThe average interest rate the US Treasury currently pays on its outstanding debt, broken out by security (Treasury Bills, Notes, Bonds, TIPS, FRNs, savings, and the marketable/total aggregates) for the latest reported month, in percent. No ticker needed. A read on the government's cost of borrowing that complements the /treasury-yields curve. Sourced from the US Treasury (FiscalData).$0.01 Base398 ms4 payers100% up
  92. 95surf.cascade.fyi/api/v1/twitter/users/relationshipCheck the follow relationship between two users$0.001 solana749 ms4 payers100% up
  93. 95api.solenrich.com/entrypoints/stonk-quote/invokeCost and payback of one StonkFun trade at one size$0.005 solana676 ms4 payers100% up
  94. 95api.solenrich.com/entrypoints/stonk-yield/invokeTrailing 7d/30d holder yield for a StonkFun reward coin$0.005 solana679 ms4 payers100% up
  95. 95api.solenrich.com/entrypoints/stonk-screener/invokeScreen every StonkFun reward coin: payout status, live flag, tax cost$0.01 solana587 ms4 payers100% up
  96. 95svm402.com/holdcheckHeld-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 Solana767 ms4 payers100% up
  97. 95chain.cyberwarex.com/blockLatest block on any major EVM chain: block number, timestamp, age in seconds, base fee and gas used/limit. The cheapest possible liveness and chain-tip check for an agent: confirm a chain is progressing, timestamp an observation, or pick a block for a query.$0.001 Base909 ms4 payers100% up
  98. 95quotient-api-gateway.onrender.com/api/v1/price-outlooksUse this endpoint to read calibrated asset price outlooks across equities, crypto, and commodities, grouped by settlement source and horizon. Each returns five scenarios plus a labeled whole-curve directional take. The nearest still-open horizon is marked without hiding neutral views. A PriceSignal is a separate current execution call and appears only on its exact Hyperliquid group.$0.01 Base593 ms4 payers100% up
  99. 95x402.agentindex.world/weatherCurrent weather and a 3-day forecast for any city or coordinates.$0.001 Base644 ms4 payers100% up
  100. 95x402.ochinimus.app/api/priceSpot price: the price, the venue that actually served it, and a Pyth confidence when Pyth served. Use when you need to answer: What is the spot price, without picking a venue? Coinbase, then Kraken, then Pyth Hermes. Serves SOL, BTC and ETH; anything else is declined.$0.001 Solana808 ms4 payers100% up