x402watch

19,848 paid endpoints are listed. 19,062 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 2026-10-01 13:23 UTC · 19,848 probed

19,062 answering 402233 down426 rejecting127 no paywall2,385 price drift
  1. 100api.govparse.io/v1/patents/searchWhich companies just got a US patent, and in what technology? Search recent granted patents (PatentsView, CC BY 4.0) by assignee organization (the company), inventor, CPC subclass/section, patent type, or assignee state/country and grant-date window. new_assignee=true isolates patents from an org with its first-ever grant (emerging/stealth signal); flipped_inventor=true finds a patent whose assignee gained an inventor from a prior different assignee (talent move). Public grants, observational.$1.25 Base197 ms2 payers100% up
  2. 100phion.systems/v1/paid/fetch-evidenceIndependent, prompt-injection-screened, hashed and signed web evidence for AI agents$0.004 Base201 ms2 payers100% up
  3. 100api.signalfuse.co/v1/sentiment/PLTRModernFinBERT social sentiment for equity tickers$0.002 Base298 ms2 payers100% up
  4. 100api.signalfuse.co/v1/sentiment/METAModernFinBERT social sentiment for equity tickers$0.002 Base78 ms2 payers100% up
  5. 100api.signalfuse.co/v1/sentiment/GOOGLModernFinBERT social sentiment for equity tickers$0.002 Base80 ms2 payers100% up
  6. 100api.signalfuse.co/v1/sentiment/AMZNModernFinBERT social sentiment for equity tickers$0.002 Base78 ms2 payers100% up
  7. 100api.signalfuse.co/v1/arena/rsi_reversion_swing/ETHIndividual arena strategy signal$0.001 Base77 ms2 payers100% up
  8. 100api.signalfuse.co/v1/arena/rsi_7_extremes/BTCIndividual arena strategy signal$0.001 Base76 ms2 payers100% up
  9. 100api.kadec0.xyz/v1/congress-tradesUS congressional stock trades. Stock transactions disclosed by members of the House and Senate under the STOCK Act — politician, ticker, amount, and date.$0.05 Base97 ms1 payers100% up
  10. 100rubric-protocol.com/v1/x402/check-counterpartyAttested pre-transaction counterparty check: OFAC SDN digital-currency list match plus on-chain profile for any Base address, returned as a signed, Hedera-anchored verdict you can cite as evidence of diligence.$0.01 Base60 ms1 payers100% up
  11. 100kronossignals.com/api/v1/liquidations/solForward liquidation cluster map + recent prints for all 17 crypto assets. Part A: estimated liq price levels for 5x/10x/25x/50x leverage bands, modeled from open interest and mark price — no new upstream source. Part B: real liquidation prints from OKX public API (no auth). Returns cluster map, nearest_long/short clusters, squeeze_bias, and honest disclaimers. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE-USD. Pay-per-call via x402.$0.02 Base141 ms1 payers100% up
  12. 100kronossignals.com/api/v1/funding-arb/btcCross-venue funding arbitrage signal from real-time 8h-equivalent funding rates on Binance, OKX, Bybit, KuCoin, Bitget and Hyperliquid. Returns the gross and net-of-fees spread between the best short venue and best long venue (gross_spread_bps, net_spread_bps after a 20 bps round-trip fee estimate), spread_8h_normalized, venues_count, per-venue rates with funding_interval_hours, annualized_pct, and an actionability label. All 17 assets. $0.02 USDC via x402.$0.02 Base215 ms1 payers100% up
  13. 100x402.freeq.one/tools/wallet_verify_nostrNIP-98 Nostr Auth Verifier: Verify a NIP-98 Nostr HTTP auth event. Returns the signer pubkey. Stateful replay protection: each event id can only be verified once. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/wallet_verify_nostr.$0.002 Base82 ms1 payers100% up
  14. 100x402.freeq.one/tools/wallet_verify_siweSIWE Signature Verifier: Verify a Sign-In-With-Ethereum (EIP-4361) signature. Stateless oracle: checks the signature against the message and returns the wallet address + chainId. Never mints sessions or consumes nonces. Get a checksummed address first via wallet_checksum. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/wallet_verify_siwe.$0.002 Base173 ms1 payers100% up
  15. 100api.kadec0.xyz/v1/recallsConsumer product recalls. A normalized multi-agency recall feed spanning FDA, CPSC, and NHTSA — product, reason, company, classification, and severity.$0.02 Base121 ms1 payers100% up
  16. 100api.kakerapetit.dev/v1/find-near-duplicateFind near-duplicate images. Computes perceptual hash distance between two image URLs to detect crops, resizes, re-compressions, and slightly edited copies of the same photo. Use for content moderation, copyright checks, and cleaning image datasets.$0.005 Base286 ms1 payers100% up
  17. 100api.kakerapetit.dev/v1/compare-product-photoCompare two product photos for visual similarity. Returns a similarity score between two image URLs. Use when an agent needs to match a product listing photo against a catalog image, detect identical product pictures across stores, or spot re-used ecommerce imagery.$0.005 Base271 ms1 payers100% up
  18. 100api.solenrich.com/entrypoints/trenches-scan/invokeOne call composes runner-scan (on-chain velocity), smart-money-trenches (proven-winner wallet buys), and attention-momentum (agent query stream) into a ranked memecoin list. Per token: composite score (runner 0.45 / smart-money 0.45 / attention 0.10), confluence count, reasoning, and a HIGH_CONFLUENCE / MODERATE / SINGLE_SIGNAL verdict. Legs degrade independently — an upstream failure annotates the result instead of failing the call. NFA.$0.08 Solana100 ms1 payers100% up
  19. 100api.solenrich.com/entrypoints/trenches-check/invokeThe trenches suite pointed at ONE token: pass a mint, get a HIGH_CONFLUENCE / MODERATE / SINGLE_SIGNAL / NO_SIGNAL verdict with reasoning. Runs on-chain velocity (runner stage + 0-1 score), proven-winner wallet buys (vetted realized-PnL seed set), and agent attention (proprietary query stream) against your candidate. The follow-up call to a new-tokens discovery or any shilled token. Repeat checks 5+ min apart unlock liquidity/holder deltas. NFA.$0.03 Solana102 ms1 payers100% up
  20. 100x402.aispace.bot/api/v1/image/background-removeRemove the background from an image and return a transparent PNG, paid per request in USDC on Base via x402, no API key. Send `image` (base64) or `image_url` (HTTPS), not both. Optional `model` is used for pricing then stripped before proxy.$0.02 Base123 ms1 payers100% up
  21. 100trust-agent.io/v1/verify/batchScreen up to 10 addresses in one call: OFAC sanctions check, trust score, risk band and recommendation for each. For vetting a counterparty set before a run of payments, maintaining an allowlist, or auditing wallets you already pay. Free alternative: GET /v1/verify. Trial: 3 free calls/wallet/24h — https://trust-agent.io/v1/trial.$0.01 Base294 ms1 payers100% up
  22. 100api.solenrich.com/entrypoints/gacha-ev-scan/invokeJupiter Gacha (Collector Crypt) tokenized-card pack EV scan. For each pack machine, computes net-of-exit-mechanics EV: gross insured EV vs the guaranteed instant-buyback floor (85-93%% of insured, <=72h) vs a marketplace sale (insured value minus 2%% fee, fill-risk). Returns a POSITIVE_EV / HOUSE_EDGE / NEGATIVE_EV verdict per machine plus rare+epic stock share, ranked by the chosen exit path. All inputs optional.$0.02 Solana49 ms1 payers100% up
  23. 100api.solenrich.com/entrypoints/attention-momentum/invokeTokens ranked by how fast agent attention is speeding up — query velocity change across three consecutive windows, overlaid with price change over the same window. Divergence classes: early_signal (attention accelerating, price flat), confirmed_momentum, distribution_risk (attention cooling while price pumps), fading. Proprietary: derived from SolEnrich's own agent query stream, not market volume. sample_quality reports signal density honestly.$0.02 Solana78 ms1 payers100% up
  24. 100api.solenrich.com/entrypoints/hyperliquid-smart-money/invokeWhere Hyperliquid smart money is positioned. Scans the HL leaderboard, excludes market-makers/HFT and dust/mega accounts, keeps consistent directional traders (week+month PnL > 0), then aggregates their live positions into a per-coin consensus (long/short counts, net notional, bias, conviction) plus a top-trader drill-down ranked by month PnL. A positioning signal, not a trade: consensus is often crowded and regime-dependent.$0.05 Solana73 ms1 payers100% up
  25. 100api.solenrich.com/entrypoints/hyperliquid-trader-profile/invokeLive perp positions for a Hyperliquid EVM (0x) address, read from Hyperliquid's public on-chain state. Per-position coin, side, leverage, notional, entry, unrealized PnL, distance-to-liquidation, and risk flags (high/extreme leverage, approaching liquidation, losing). Plus account value, directional bias, profile, weighted leverage, and realized+unrealized PnL over week/month/all-time. The building block for smart-money tracking.$0.012 Solana81 ms1 payers100% up
  26. 100api.solenrich.com/entrypoints/perps-basis-signal/invokeComputes perp mark vs spot price across venues and surfaces actually-earnable yield (funding APR on Hyperliquid + dYdX, not viable on pool perps Jupiter + Adrena). Returns per-venue trade economics, opportunities above threshold, and best trade. Threshold defaults to 5% APR.$0.015 Solana80 ms1 payers100% up
  27. 100api.solenrich.com/entrypoints/perps-venue-comparison/invokeBuilds on cross-venue funding with size-aware fields: Jupiter Quote spot slippage at requested size, per-venue fee, OI cap headroom, first-hour borrow cost, and total entry cost. Returns rankings by entry cost / borrow APR / headroom plus a recommendation venue with warnings. Use when sizing a real position; use perps-cross-venue-funding for rates-only context.$0.02 Solana104 ms1 payers100% up
  28. 100api.solenrich.com/entrypoints/perps-cross-venue-funding/invokeAggregates borrow/funding APR + open interest across Solana on-chain venues (Jupiter Perps, Adrena) and cross-chain reference venues (Hyperliquid, dYdX v4). Returns per-venue quotes, best entry per side, basis vs Hyperliquid, and arbitrage opportunities. Adrena uses wrapped collateral (SOL via jitoSOL, BTC via WBTC); ETH unsupported there, BONK not on Jupiter Perps. New venues fold in additively as they launch.$0.015 Solana104 ms1 payers100% up
  29. 100api.solenrich.com/entrypoints/runner-scan/invokeFinds fresh Solana memecoins whose on-chain buying is accelerating — the signature of a run in progress, not the lagging fact that price already moved. Measures buy-rate acceleration (5m vs 1h, 1h vs 6h), buy pressure, volume acceleration, price velocity, holder growth and liquidity trend. Classifies RUNNING / IGNITING / PARABOLIC_LATE / FADING with a 0-1 score plus reasoning. Flags wash-trade smell and liquidity pulls rather than dressing them up as momentum.$0.04 Solana113 ms1 payers100% up
  30. 100api.solenrich.com/entrypoints/smart-money-flow/invokeScores seed wallets via copy-trade metrics (win rate, Sharpe, consistency), filters to qualifying winners, then surfaces tokens they're accumulating and wallet clusters. Pass your own `wallets` array or use the curated default seed list.$0.10 Solana100 ms1 payers100% up
  31. 100api.solenrich.com/entrypoints/perps-market-structure/invokePer-market open interest, utilization, borrow APR, skew, OI caps, and health flags across Jupiter Perps SOL/BTC/ETH markets. Reads on-chain Anchor accounts directly.$0.012 Solana93 ms1 payers100% up
  32. 100api.solenrich.com/entrypoints/due-diligence/invokeComposite risk: token analysis + whale activity + holder concentration. Returns SAFE/CAUTION/RISKY verdict.$0.02 Solana110 ms1 payers100% up
  33. 100api.kadec0.xyz/v1/topic-searchField and topic search for research papers. Give a broad field name or short phrase (like 'crispr' or 'exercise science') and get a coherent, taxonomy-grounded seed cluster: the field is resolved against the OpenAlex topics taxonomy, then the cluster returns the top-cited plus recent-influential works, each with title, authors, year, venue, citation count, and DOI. Solves the broad-term entry problem dense semantic search fails on. Keyless.$0.02 Base95 ms1 payers100% up
  34. 100agents.chain.link/v1/operations/:operationId/submitChainlink For Agents: submit a signed operation payload.$0.002 Base85 ms1 payers100% up
  35. 100defillama.use.x402atlas.com/fee-summaryFees & revenue summary by DefiLlama — fee and revenue history for one protocol by slug.$0.005 Base299 ms1 payers100% up
  36. 100defillama.use.x402atlas.com/dexs-chainDEX volumes for one chain by DefiLlama — decentralized-exchange trading volume on a single chain.$0.005 Base295 ms1 payers100% up
  37. 100defillama.use.x402atlas.com/dex-summaryDEX summary by DefiLlama — trading volume and history for one decentralized exchange by protocol slug.$0.005 Base281 ms1 payers100% up
  38. 100defillama.use.x402atlas.com/chain-tvlHistorical DeFi TVL for one chain from DefiLlama — total-value-locked time series for a single chain.$0.005 Base295 ms1 payers100% up
  39. 100places.use.x402atlas.com/searchGoogle Maps local business search by place name — find places by query and a free-text location (e.g. 'Austin, Texas'), no coordinates needed; returns Google's local-pack results as clean JSON.$0.02 Base280 ms1 payers100% up
  40. 100places.use.x402atlas.com/placeGoogle Maps place details — full profile for a single place_id: ratings, reviews, hours, phone, website, price, service options, popular times & plus code as clean JSON.$0.02 Base288 ms1 payers100% up
  41. 100trust-agent.io/v1/provenance/chainWhere did this address get its money? Walks the funding chain upward and returns the account that ultimately paid for the wallet, plus a cluster id. Two addresses funded from the same account are not independent parties, however unremarkable each looks alone — the cheapest strong signal that an identity was manufactured. Works on any address, not only registered agents. Free alternative: GET /v1/provenance. Trial: 3 free calls/wallet/24h — https://trust-agent.io/v1/trial.$0.01 Base83 ms1 payers100% up
  42. 100x402.dailyelo.com/v1/listing/watchIs your x402 service still listed? The Bazaar removes resources that go without settlement, and no one tells you. We keep a daily snapshot of the whole catalog since June, so we can show whether your domain is present today, how its resource count moved day by day, and how long since each resource was last paid for. In our latest scan 620 of 2,147 domains are no longer present. Measured from our own snapshots.$0.01 Base23 ms1 payers100% up
  43. 100kino402.com/v1/forms/ugc-product-videoUGC product video: 5s 9:16 for TikTok, energetic, rendered by seedance-1.5-pro$0.372 Base34 ms1 payers100% up
  44. 100trust-agent.io/v1/verify/quickIs this counterparty safe to pay or accept payment from? Screens it against the OFAC sanctions list, then SYBIL-FILTERS its ERC-8004 reputation: reviewers are clustered by funding source, one vote each, so feedback bought from one purse counts once. Returns an explainable 0-100 score, a proceed / hold / block recommendation, and insufficient_data rather than a guess. Free alternative: GET /v1/verify. Trial: 3 free calls/wallet/24h — https://trust-agent.io/v1/trial.$0.002 Base84 ms1 payers100% up
  45. 100doc-extract-api.thestarboy9696-4ef.workers.dev/extract/customSchemaLock — extract structured JSON data from any PDF/image or raw text/HTML, converting it into a JSON Schema you supply, not limited to invoice/receipt/contract/resume. Unlike the fixed invoice/receipt/contract/resume endpoints, this accepts any JSON Schema — you define the fields. Takes a PDF/image file OR raw text/HTML you already have (e.g. a scraped page). Schema-conformance, not fact-checking. A rejected schema is a 400 and costs nothing.$0.02 Base76 ms1 payers100% up
  46. 100api.kadec0.xyz/v1/lit-reviewLiterature review map in one call. Give a seed paper (DOI, arXiv id, OpenAlex id, or PMID) or a topic query and get one structured result: the seed's references, its cited-by list (most-cited first), and semantically related work, deduplicated into one uniform table with title, authors, year, venue, DOI, and citation count. Collapses search, citation lookup, and related-paper discovery into a single call. Keyless.$0.08 Base91 ms1 payers100% up
  47. 100api.kadec0.xyz/v1/dns-propagationDNS propagation checker. Compares a DNS record across public resolvers (Google, Cloudflare, Quad9, OpenDNS) to spot propagation lag or split-horizon answers.$0.03 Base172 ms1 payers100% up
  48. 100alpha402x.com/quarterly-quant-card/AMD/fy2026-q2Graded against the company's own prior-year quarter, not a peer score — tax-flattered and one-off figures fenced, cited to the 10-Q. Complete card free: /quarterly-quant-card/sample/AMD$0.25 Base43 ms1 payers100% up
  49. 100api.polym.uk/resolution-watchlistLive Polymarket watchlist ranked by structural UMA resolution base-rate signals, with flip risk kept as a separate conditional axis. BEFORE YOU PAY: free substitute https://dash.polym.uk/markets.json and https://dash.polym.uk/uma-base-rates.json. THIS ADDS: The live subset ranked by structural dispute signals, computed for you. The inputs are in the free files; the ranking and the tiering are what this adds.$0.05 Base200 ms1 payers100% up
  50. 100readx.sh/api/trendsTrending topics for a location (worldwide by default; filter with country or woeid). Example: GET /api/trends?country=US$0.01 Base32 ms1 payers100% up
  51. 100x402.aispace.bot/api/v1/crypto/rpc/basePay-per-call JSON-RPC proxy to 20+ EVM and Starknet networks on Venice, paid per request in USDC on Base via x402, no API key. Resolve the {network} path segment from GET /api/v1/crypto/rpc/networks.$0.01 Base244 ms1 payers100% up
  52. 100readx.sh/api/:name/pinnedJust the user's pinned tweet, if any. Example: GET /api/jack/pinned$0.01 Base34 ms1 payers100% up
  53. 100straits.live/api/premium/hormuz/flagsStrait of Hormuz flag rollup: the flag states of the live-AIS vessel population (vessels seen on AIS within the last activeWindowHours, currently 1.5) ranked by vessel count, each with a per-flag sanctioned tally and an oldest_last_seen recency check, plus distinct-flag count and sanctioned share. Flags are derived best-effort from the MMSI MID (ITU-T M.585). Quality-gated on live AIS. Operators and inbound/outbound direction are omitted, not faked: no operator field is stored and transit direction is not tracked per vessel. The full count of recently-dark hulls (last 3 to 24h) is exposed as darkFleetTotal, since almost none of them are still in the active window.$0.01 Base127 ms1 payers100% up
  54. 100tools.halowerk.com/v1/json/repairRepariert die typischen Fehler aus Sprachmodell-Ausgaben und Fremdsystemen: Markdown-Zaun, haengende Kommas, einfache Anfuehrungszeichen, unquotierte Schluessel, Kommentare, typografische Anfuehrungszeichen, unsichtbare Zeichen, fehlende Klammern, NaN und Infinity. Liefert das geparste Objekt und ein Protokoll jeder einzelnen Reparatur.$0.001 Base130 ms1 payers100% up
  55. 100app.tenna.ai/api/x402/tenna/solana_launch_verificationVirtuals Solana DBC State & Supply Receipt. Virtuals Solana launches only. Returns finalized mint controls, ACTIVE_DBC vault custody, tokens outside the observed DBC vault, platform lifecycle, signature/slot provenance, and token-specific tape coverage. Every result below COMPLETE names its reasons and separates our own instrumentation age from real observation loss. It does not verify circulating supply, liquidity, safety, or post-migration custody and is not a forecast or trade signal.$0.01 Base229 ms1 payers100% up
  56. 100imagcon.app/routes/x402/validateTest any x402 endpoint with a REAL signed payment from a fresh unfunded wallet — no funds can move. Returns the facilitator's verdict (healthy / broken / payment-ignored), decoded challenge, lint checks for silent payment-killers like over-long resource descriptions, and a 402index discovery report. Config validators check your paperwork; this reports what the facilitator actually said. Run it from CI after every deploy.$0.01 Base114 ms1 payers100% up
  57. 100x402-seller.onrender.com/ocean/tidesU.S. coastal tide data from NOAA — when's the next high or low tide, or what's the water level right now: high/low tide predictions for the next 48 hours (product=predictions, default), or the latest observed water level (product=water_level). Identify the location by NOAA CO-OPS station ID, or just pass lat+lng and the nearest station is used automatically (distanceKm in the response says how far it is). Heights in feet above MLLW datum, times in GMT.$0.001 Base79 ms1 payers100% up
  58. 100tools.halowerk.com/v1/ip/reputationLiefert ASN, Netzbetreiber, Land, Reverse-DNS, Bogon-Status, Tor-Exit-Erkennung und eine Rechenzentrums-Wahrscheinlichkeit. Grundlage für Betrugs- und Moderationsagenten.$0.001 Base137 ms1 payers100% up
  59. 100api.eckari.com/v1/weather/us/alertsActive National Weather Service watches, warnings and advisories for a US coordinate or a two-letter state or marine area code - event, severity, certainty, urgency, headline, affected areas and zone codes, and effective/onset/expiry times in UTC. Read at request time, so an empty list means nothing is active. The 5 newest come back by default; detail=full adds the NWS narrative. Use when: Decide whether an active US weather warning affects a location before dispatching or travelling.$0.003 Base62 ms1 payers100% up
  60. 100readx.sh/api/:name/infoA user's profile info: id, name, bio, location, follower/following counts, verification. Example: GET /api/jack/info$0.01 Base25 ms1 payers100% up
  61. 100keyronne.com/api/chain-blockFetch a block header by number, hash, or "latest" on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: timestamp, miner, gas used/limit, base fee, transaction count, size. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"base","block":"latest"}$0.003 Base277 ms1 payers100% up
  62. 100tools.halowerk.com/v1/hs/classifyOrdnet eine Warenbeschreibung der sechsstelligen Harmonisierten Nomenklatur der Weltzollorganisation zu, 6.940 Positionen. Versteht deutsche Warenbezeichnungen einschliesslich zusammengesetzter Woerter ueber einen Fachwortschatz und liefert je Vorschlag Kapitel, Position, Unterposition, Trefferbegriffe und einen Wert. Weist die Grenzen der Automatik aus und markiert Faelle fuer die verbindliche Zolltarifauskunft.$0.004 Base136 ms1 payers100% up
  63. 100scvd.store/api/buy/conformance_watchThe Conformance Watch. REQUIRES ?url= on the paid request — a signed request without it is refused before the gate and no money moves. A watch id and a permanent history URL, readable immediately and filling in daily for seven days: one signed pass per day carrying the verdict, every failed check and advisory by name, plus a summary deriving the days the store missed and whether the readout drifted between passes. Bounded and prepaid; ends after seven days, renews only by re…$5.00 Base50 ms1 payers100% up
  64. 100scvd.store/api/buy/standing_watchThe Night Watch. REQUIRES ?url= on the paid request — a signed request without it is refused before the gate and no money moves. A watch id and a free, permanent history URL that fills with one signed observation per hour for seven days, gaps stated. Full listing: https://scvd.store/menu/standing_watch. MCP tool: buy_standing_watch.$5.00 Base43 ms1 payers100% up
  65. 100scvd.store/api/buy/onpage_auditThe Shop Window. REQUIRES ?url= on the paid request — a signed request without it is refused before the gate and no money moves. A signed JSON report — verdict (ready, not_ready, unreachable or refused), every check and advisory from the published on-page battery, the blind spots printed on the artifact, dated, its evidence hash bound into the purchase certificate's attests field — plus a stable report URL serving the record free forever. Instant; one GET of the HTML as serv…$3.00 Base46 ms1 payers100% up
  66. 100quartermaster.surewhynot.app/v1/x402/discoverSearch the Coinbase x402 Bazaar for paid resources by natural-language query.$0.001 Base185 ms1 payers100% up
  67. 100quartermaster.surewhynot.app/v1/moderateContent-safety classification (Llama Guard): safe/unsafe plus category codes.$0.002 Base30 ms1 payers100% up
  68. 100quartermaster.surewhynot.app/v1/metaGet structured metadata for a public webpage: title, description, canonical URL, Open Graph fields, favicon, and language.$0.002 Base120 ms1 payers100% up
  69. 100quartermaster.surewhynot.app/v1/routeThe x402 Router: send a plain-English goal in q (e.g. 'audit https://api.example.com/paid', 'price of eth', 'is 0x… a contract', 'verify settlement 0x…') and Quartermaster picks the right tool from its full toolkit, runs it, and returns the answer plus which tool it used. One endpoint for anything x402, crypto-on-Base, or web/AI.$0.03 Base103 ms1 payers100% up
  70. 100api.datasieve.xyz/watch/standardSomething you cannot do while your agent is dead: keep watching. One paid call buys 7 days of it — on-chain on Base (wallet activity, whale transfers, price crossings, new pools), a dead-man switch that fires when YOUR agent goes silent, a cron/schedule webhook, or a url-change web monitor. Every event carries a signed Ed25519 receipt proving a third party observed it then — which your own logs cannot. Webhook or pollable mailbox. No account: the wallet is the identity. 50 triggers.$0.10 Base105 ms1 payers100% up
  71. 100scorestatus.dev/api/installBuy a live status line install for a team. Returns the client script file(s), config snippets, and step-by-step instructions for the installing agent to execute locally. The response token makes the line endpoint work and re-downloading the same bundle via /api/bundle is free — never pay twice for a retry.$0.05 Base279 ms1 payers100% up
  72. 100agentreader.dev/linksExtract every hyperlink on a web page as structured JSON: resolved absolute URL, anchor text, internal-vs-external classification and nofollow flag, up to 2000 unique links. The building block for agent crawlers that need to decide where to go next, plus broken-link sweeps, backlink and SEO analysis, and site mapping.$0.005 Base33 ms1 payers100% up
  73. 100marketpulse.theaslangroupllc.com/api/market/competitor-gapWhere is this competitor vulnerable? Finds exploitable gaps in a competitor's marketing presence across content, channels and positioning, then returns quick wins and a six-month attack plan for a given competitor and industry. For competitive-intelligence and marketing agents.$0.10 Base117 ms1 payers100% up
  74. 100x402tap.com/api/rpcSafelisted read-only JSON-RPC proxy across major EVM chains (base, ethereum, polygon, arbitrum, optimism) — eth_call, eth_getBalance, eth_getTransactionReceipt, eth_getBlockByNumber, and more$0.003 Base167 ms1 payers100% up
  75. 100agentreader.dev/dnsDNS lookup over Cloudflare DoH: query A, AAAA, CNAME, MX, NS, TXT, SOA, SRV, CAA or PTR records for any domain and get structured JSON answers with TTLs. Useful for domain research, email validation and infrastructure checks.$0.003 Base28 ms1 payers100% up
  76. 100kronossignals.com/api/v1/forecast/nearNEAR Protocol (NEAR) price direction forecast. Kronos-base (60-path Monte-Carlo) ML model, cached ~20 min. Measured on predictions we actually served: 49% directional, 72% in-range over 2,500+ scored NEAR forecasts — below our ~54% all-asset headline; verify per-asset at /api/stats (beta_accuracy). Falls back to the composite heuristic if the cache is briefly stale. Pay-per-call via x402 on Base USDC. Live scored track record at /api/stats — not a backtest.$0.05 Base153 ms1 payers100% up
  77. 100multichain-rpc.clankerceo.workers.dev/gasLive gas prices: EIP-1559 base fee plus low/medium/high priority tiers in gwei, and the estimated cost of a simple transfer.$0.001 Base26 ms1 payers100% up
  78. 100tools.halowerk.com/v1/calendar/workdaysFeiertagsliste je Bundesland für DE, AT und CH, Werktagsprüfung, Werktage zwischen zwei Daten, Werktage addieren und Zeitzonen-Offset inklusive Sommerzeit.$0.001 Base136 ms1 payers100% up
  79. 100onchainpulse.theaslangroupllc.com/api/legislationPlain-English translation of crypto and stablecoin bills with sector-impact scenarios — the GENIUS Act, MiCA and more. For policy and compliance agents.$0.15 Base97 ms1 payers100% up
  80. 100onchainpulse.theaslangroupllc.com/api/facet/liquidityToken liquidity and momentum snapshot, half a cent: live DEX liquidity in USD, price, market cap, pair age, 1h/24h volume, buy-vs-sell transaction ratio, price change — the raw DexScreener read for any EVM token, one source, no fusion. Base, Ethereum, BSC, Arbitrum, Polygon, Optimism, Avalanche. Cheapest pre-trade depth check; upgrade to /api/evmtoken ($0.015) for the fused safety verdict or /api/exit-depth for sell-impact modeling.$0.005 Base104 ms1 payers100% up
  81. 100x402tap.com/api/wallet-balanceNative and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism)$0.002 Base156 ms1 payers100% up
  82. 100jmt-x402-proxy.jmthomasofficial.workers.dev/v2/api/domain-trust-scoreDomain trust and company-domain intelligence: evidence-backed assessment using RDAP registration data, DNS/security reputation search, and a structured risk analysis. Surfaces fraud, typosquat, and low-trust domains for vendor or counterparty due diligence.$0.01 Base274 ms1 payers100% up
  83. 100palmyr.ai/cards/:idRetrieve a prepaid card you own: full card number, CVV, expiry, balance. Owner-verified ($0.01 ownership proof).$0.01 Solana233 ms1 payers100% up
  84. 100mcp.yield.xyz/x402/actions_manageBuild unsigned transactions for pending actions on an existing DeFi position — claim rewards, restake, unlock, or complete a withdrawal — across 80+ networks. Use the action type and passthrough from yields_get_balances pendingActions[]. Does NOT execute: the caller signs and broadcasts each tx.$0.001 Base234 ms1 payers100% up
  85. 100mcp.yield.xyz/x402/actions_enterBuild unsigned transactions to enter any DeFi yield — native/liquid staking (ETH, SOL, ATOM), stablecoin lending (USDC/USDT on Aave, Morpho), ERC-4626 vaults, and tokenized RWAs across 80+ networks. Does NOT execute: the caller signs and broadcasts each tx, so keys never leave the caller. Find yield IDs via yields_get_all.$0.001 Base223 ms1 payers100% up
  86. 100mcp.yield.xyz/x402/actions_exitBuild unsigned transactions to exit a DeFi yield position — unstake, withdraw from lending or vaults, or redeem RWAs — across 80+ networks. Supports instant and queued/cooldown redemption per protocol. Does NOT execute: the caller signs and broadcasts each tx. Check positions with yields_get_balances first.$0.001 Base233 ms1 payers100% up
  87. 100mcp.yield.xyz/x402/get_transactionGet the on-chain status of a single transaction by its Yield.xyz transaction ID — poll after broadcasting to confirm it landed, or inspect the constructed/unsigned transaction.$0.001 Base228 ms1 payers100% up
  88. 100mcp.yield.xyz/x402/actions_getGet the status and transactions of a specific action by its ID (returned by actions_enter/exit/manage). Poll this to track an action from CREATED → SUCCESS/FAILED.$0.001 Base252 ms1 payers100% up
  89. 100mcp.yield.xyz/x402/actions_get_allList past and pending actions for a wallet across all yields — filter by status, intent, type, yield, or network. Answers "what are my pending actions?" and finds actions awaiting a next step.$0.001 Base228 ms1 payers100% up
  90. 100mcp.yield.xyz/x402/yields_get_kyc_statusCheck whether a wallet is KYC-eligible for a gated (RWA / tokenized-treasury) yield. Returns the normalized KYC status and, when required, where to complete verification — call before actions_enter on gated yields.$0.001 Base227 ms1 payers100% up
  91. 100mcp.yield.xyz/x402/yields_get_validatorsList validators for delegation-based yields (Cosmos, Polkadot, ETH native staking, etc.). Use a validator address with actions_enter/actions_exit. Filter to curated validators with preferred=true, or by name/status/address/provider.$0.001 Base233 ms1 payers100% up
  92. 100mcp.yield.xyz/x402/yields_get_reward_rate_historyHistorical APY / reward-rate for a yield over time — plot APY trends or compute average yield across 1d/7d/30d/90d/1y windows.$0.001 Base232 ms1 payers100% up
  93. 100mcp.yield.xyz/x402/yields_get_tvl_historyHistorical total-value-locked (TVL) for a yield over time — track inflows/outflows and protocol growth across 1d/7d/30d/90d/1y windows.$0.001 Base233 ms1 payers100% up
  94. 100mcp.yield.xyz/x402/yields_get_riskGet the risk profile for a yield — ratings and scores from independent risk providers (Credora, Staking Rewards) so agents and users can weigh safety before depositing.$0.001 Base245 ms1 payers100% up
  95. 100mcp.yield.xyz/x402/providers_get_allList every protocol/provider behind Yield.xyz yields — Lido, Aave, Morpho, validator operators, RWA issuers, and more — with names and identifiers. Use a providerId to filter yields_get_all.$0.001 Base232 ms1 payers100% up
  96. 100keyronne.com/api/chain-txLook up a transaction and its receipt on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain: status (success/reverted/pending), from/to, value, block, nonce, gas used and price, log count, and any contract created. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"base","hash":"0xb498053e345acd227657ef2e3de7d9fd9b861d673368419c4b18cfaea20365c8"}$0.003 Base29 ms1 payers100% up
  97. 100keyronne.com/api/chain-gasCurrent gas price and EIP-1559 fee suggestions (base fee, priority tip, suggested max fee) on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain, in gwei. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"ethereum"}$0.003 Base32 ms1 payers100% up
  98. 100keyronne.com/api/phoneValidate and parse phone numbers in international E.164 form: extract the country calling code and region, the national number, and the canonical +E.164 string. Single number or a batch of up to 50. Format validation, not a line-in-service check. POST a JSON body like: {"phone":"+14155552671"}$0.001 Base33 ms1 payers100% up
  99. 100keyronne.com/api/validate-jsonValidate a JSON value against a JSON Schema and coerce common LLM-output mistakes (numbers as strings, stringified booleans, scalars where arrays are expected, missing defaults, extra properties). Returns the coerced value plus a structured error report. Built for cleaning up LLM tool-call arguments and structured outputs. POST a JSON body like: {"schema":{"type":"object","required":["name","age"],"properties":{"name":{"type":"string"},"age":{"type":"integer"}}},"data":{"name":"Ada","age":"36"}}$0.001 Base166 ms1 payers100% up
  100. 100alphapulse.theaslangroupllc.com/api/alpha/prop-firmsProp-firm shortlist matched to your market, region, and trading style: payout-proof checks first, challenge rules that actually differ (drawdown type, news/EA rules, breach terms), profit splits, and the red flags of an industry where most revenue comes from failed challenges. Forex/CFD and futures firms, region-aware worldwide. For trading agents and the traders they work for.$0.15 Base297 ms1 payers100% up