x402watch

53,113 paid endpoints are listed. 31,940 answered a real 402 at the last check.

Every x402 endpoint on the Coinbase Bazaar and x402scan, probed unpaid every six hours. A listing tells you the price a seller wrote down. This tells you whether the endpoint is reachable, whether it charges what it declared, and how fast it answers. Ranked by an assay score out of 100.

Last check 2026-10-05 15:08 UTC · 53,113 probed

31,940 answering 40215,003 down5,345 rejecting825 no paywall1,219 price drift
  1. 90api.hivemindos.app/v1/x402/x-studio/runs.createX Studio account run: turns a public X account into a reusable writing-style skill (style), or audits its engagement (audit). $0.99 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.$0.99 Base1737 ms1 payers100% up
  2. 90api.hivemindos.app/v1/x402/reddit-voc/runs.createReddit voice-of-customer report: mines Reddit threads on a topic into customer pains, desires, objections and their own phrasing. $0.99 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.$0.99 Base1535 ms1 payers100% up
  3. 90api.hivemindos.app/v1/x402/wallet-risk/snapshots.createWallet risk snapshot: scores a Base or Robinhood Chain wallet's holdings and counterparty risk before an agent transacts with it. $0.99 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.$0.99 Base1539 ms1 payers100% up
  4. 90api.hivemindos.app/v1/x402/token-autopsy/reports.createToken Autopsy report: graded due-diligence on a token: holders, flows, deployer history, market stats and red and green flags. $0.99 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.$0.99 Base1787 ms1 payers100% up
  5. 90api.endpointrecord.com/scanToken safety verdict for Base: contract security (two independent honeypot sources), DEX liquidity, blacklist and scam pattern checks$0.02 Base1011 ms1 payers100% up
  6. 90sigma-api-oracle.tailae0cf3.ts.net/v1/capabilities/feedSigma CAPABILITY_FEED: ranked governed capability intelligence for autonomous agents.$0.02 Base Sepolia1535 ms1 payers100% up
  7. 90sigma-api-oracle.tailae0cf3.ts.net/v1/strategies/:strategy_id/evidenceSigma STRATEGY_EVIDENCE: read persisted governed evidence for one research strategy.$0.03 Base Sepolia1558 ms1 payers100% up
  8. 90sigma-api-oracle.tailae0cf3.ts.net/v1/thesis/validateSigma VALIDATE: combine current completed-candle thesis evidence with one matching persisted governed research matrix.$0.15 Base Sepolia1618 ms1 payers100% up
  9. 90sigma-api-oracle.tailae0cf3.ts.net/v1/thesis/preflightSigma PREFLIGHT: challenge a supplied thesis against current completed-candle evidence.$0.05 Base Sepolia1650 ms1 payers100% up
  10. 90sigma-api-oracle.tailae0cf3.ts.net/v1/market/:symbol/opportunitySigma OPPORTUNITY: candidate-specific completed-candle market evidence.$0.02 Base Sepolia1561 ms1 payers100% up
  11. 90data.finery.cc/v1/schools/searchSearch Singapore MOE schools by name or postal code (optional level filter). Results include the school directory joined with subjects offered, CCAs, MOE programmes and distinctive programmes.$0.005 Base1103 ms1 payers100% up
  12. 90agents.dexl.io/v1/tools/web-searchSearch the live web and get ranked results back: title, URL and snippet for each hit, up to 20 per call, optionally biased to a country. The natural first step before fetching or crawling - this tool finds the pages, the fetch and crawl tools read them. Results come from an independent web index and the response names which one answered.$0.01 Base1758 ms1 payers100% up
  13. 90agents.dexl.io/v1/tools/sanctions-screenScreen a person, company or vessel name against the US Treasury OFAC Specially Designated Nationals list AND its alias file - aliases matter, because a sanctioned party usually trades under an aka. Each match carries a deterministic score, the sanctions programme, and whether the hit was a primary name or an alias. The response lists which lists were searched and which were not: a name-similarity search, not a compliance determination.$0.01 Base1762 ms1 payers100% up
  14. 90agents.dexl.io/v1/tools/cve-lookupLook up a CVE by id, or search the NVD catalogue by keyword. Returns the CVSS base score and vector with its version (v4, v3.1, v3.0 or v2 - whichever NVD published), severity, CWE classification, publication and last-modified dates, vulnerability status and references. Straight from the NIST National Vulnerability Database.$0.01 Base1709 ms1 payers100% up
  15. 90agents.dexl.io/v1/tools/grid-demandHourly US electricity demand, day-ahead demand forecast, net generation and total interchange for any of 83 balancing authorities - CAISO, ERCOT, PJM, MISO, NYISO, ISO-NE, SPP, Bonneville, or US48 for the whole Lower 48. Straight from EIA open data, grouped by hour so an agent reads one object per hour instead of four raw series.$0.01 Base1723 ms1 payers100% up
  16. 90agents.dexl.io/v1/chat/completionsChat completions for GPT-5.6, DeepSeek V4 and Gemini behind one OpenAI-shaped endpoint. No account, no API key: the request pays for itself in USDC on Base, Polygon, Arbitrum or Solana. Pay with the upto scheme and only what you actually use settles - the unused ceiling comes back.$0.0025 Base2741 ms1 payers100% up
  17. 90chain-analyzer.com/api/v1/x402/issuer/supplyStablecoin issuer supply in one JSON call: pass the issuer as the `slug` query parameter. Returns total and circulating supply per chain, cumulative mint and burn totals, and the 20 most recent issuance / redemption events with transaction hashes. Same numbers as the public issuer page, shaped for agents.$0.05 Base1034 ms1 payers100% up
  18. 90chain-analyzer.com/api/v1/x402/token/:address/peg-statusIs this stablecoin still on its peg right now? Pass the token contract in the path and its chain as the `chain` query parameter. Returns the latest 15-minute VWAP of real DEX trades per chain, the deviation from par in the token's own peg currency (JPY or USD), and a one-word status (on_peg / watch / dislocated) at 0.5% and 2% thresholds. Reads a daily snapshot only — no external pricing call on the request path.$0.05 Base1034 ms1 payers100% up
  19. 90url2md-testnet.url2md.workers.dev/v1/mdPDFs, JavaScript pages and ordinary HTML as clean Markdown. Pays a page's x402 toll for you. Follows robots.txt.$0.005 Base Sepolia1430 ms1 payers100% up
  20. 90chain-analyzer.com/api/v1/x402/tx/:hash/screenScreen every address a single transaction touches. Collects the sender, recipient, token-transfer endpoints and token contracts of one transaction, then checks each against the known registry, seven sanctions lists (OFAC, UK, JP, UN, EU, CA, CH) and the ScamDB drainer database. Returns one verdict: block / review / clear. Much cheaper than a full fund-flow trace because nothing is expanded beyond the transaction itself.$0.25 Base1122 ms1 payers100% up
  21. 90chain-analyzer.com/api/v1/x402/address/:address/poisoning-checkIs this destination a lookalike of an address the sender already trusts? Applies the address-poisoning similarity rule (leading and trailing characters that wallet UIs abbreviate to) between one destination and a caller-supplied list of known-good addresses. Pure string comparison when `known` is given, so it answers in milliseconds and never runs a scan.$0.05 Base1119 ms1 payers100% up
  22. 90chain-analyzer.com/api/v1/x402/address/:address/exposureMulti-hop exposure analysis over the ChainAnalyzer graph. Returns direct and indirect exposure grouped by risk tier (mixer, darknet, sanctioned entity, exchange, bridge) plus detected money-laundering patterns such as layering and structuring.$0.50 Base1302 ms1 payers100% up
  23. 90chain-analyzer.com/api/v1/x402/address/:address/counterpartiesTop transaction counterparties for an address with entity labels, category, per-counterparty transfer counts and observed flow totals. Reuses a scan of the same address from the last 24 hours when one exists, otherwise runs a fresh scan.$0.25 Base1445 ms1 payers100% up
  24. 90chain-analyzer.com/api/v1/x402/presign/checkSign-time risk verdict for a destination or spender before value moves. Registry + ScamDB lookups plus at most one RPC call (approve spender code check), so it answers in milliseconds instead of running a full scan. Same verdict as the subscription REST API.$0.10 Base1414 ms1 payers100% up
  25. 90chain-analyzer.com/api/v1/x402/address/:address/labelsWho is this address? Returns verified entity labels from the ChainAnalyzer known registry (token issuers, exchange hot/cold wallets, protocol deployers, sanctioned entities, mixers) plus a ScamDB hit if the address is a known drainer. TRON addresses also resolve public Tronscan tags. Unreviewed and inferred labels are never returned. 12 chains.$0.05 Base1397 ms1 payers100% up
  26. 90api.powahub.ai/CertainData/fx-rate/fx/:base/:quoteMid-market reference rate for a base/quote currency pair, from the European Central Bank.$0.007 Base1941 ms1 payers100% up
  27. 90api.powahub.ai/CertainData/fx-rates/:baseMid-market reference rates for one base currency against all published currencies, from the European Central Bank.$0.007 Base2041 ms1 payers100% up
  28. 90www.tereno.xyz/api/v1/capabilities/prediction.evidence/invokeReturns current, sourced and machine-readable evidence supporting or contradicting a prediction-market proposition before placing trades. Verifies onchain state, resolution rules, and primary provenance with deterministic receipts.$0.05 Base1136 ms1 payers100% up
  29. 90anime-intelligence.goodmy0312.workers.dev/v1/full-intelligenceOne paid call for an end-to-end Japanese anime collectible purchase decision. Resolves the exact edition, returns identity-matched Japan/global market intelligence, price history, listing-match evidence, purchase deadlines, destination-aware landed-cost context including Japan buyers, rarity and rerelease risk, authenticity risk, BUY/WAIT/WATCH/AVOID and the best current purchase route. Designed for autonomous agents that need a decision, not another list of links. WHEN TO...$0.05 Solana1194 ms1 payers100% up
  30. 90anime-intelligence.goodmy0312.workers.dev/v1/price-historyStored asking-price history for the exact Japanese anime collectible across supported marketplaces. Returns 7/30/90/180-day ranges, daily medians, current percentile and trend without claiming completed-sale history. WHEN TO USE: Use before BUY/WAIT when the agent needs 7/30/90/180-day context, recent lows, medians, highs or a price percentile instead of a one-point snapshot. WHY PAY: Pay when historical context can prevent buying at a temporary spike or missing an unusual...$0.02 Solana1105 ms1 payers100% up
  31. 90anime-intelligence.goodmy0312.workers.dev/v1/landed-costDestination-aware purchase cost for Japanese anime collectibles. Supports Japan buyers explicitly and cross-border buyers conservatively, returning known item/shipping totals and refusing to invent unavailable duty, tax or brokerage amounts. WHEN TO USE: Use when an agent is ready to buy and must compare the actual payable route for a Japan-based buyer or a cross-border buyer. Japan is a first-class destination, not a fallback case. WHY PAY: Pay when the cheapest sticker p...$0.02 Solana1106 ms1 payers100% up
  32. 90anime-intelligence.goodmy0312.workers.dev/v1/deadlinePurchase-window intelligence for Japanese anime collectibles. Returns stored verified preorder, lottery, reservation or sales deadlines when available, with remaining time and a separate release schedule so agents do not confuse release dates with order cutoffs. WHEN TO USE: Use when an agent could lose the purchase opportunity by waiting: preorder closing, lottery entry closing, limited-order end or sales-end timing. WHY PAY: Pay when missing a verified order window can e...$0.01 Solana1106 ms1 payers100% up
  33. 90anime-intelligence.goodmy0312.workers.dev/v1/listing-matchVerify whether a seller listing matches the exact Japanese anime collectible, edition or variant. Uses canonical identity, JAN/model evidence and stored marketplace match signals to detect wrong-version and name-collision risk. WHEN TO USE: Use immediately before purchase when the agent has a seller listing and identity mismatch could cause a bad order. A listing URL or title can be supplied; otherwise the service returns the strongest currently observed matched listings. ...$0.01 Solana1076 ms1 payers100% up
  34. 90anime-intelligence.goodmy0312.workers.dev/v1/best-placeReturn the best current purchase route for an exact Japanese anime collectible. Compares identity-matched seller offers, price, availability, marketplace and freshness so an autonomous agent can move from product identification to a concrete seller route. WHEN TO USE: Use when the buyer is ready to purchase and needs the best matched seller, current price, availability and route for the exact edition. WHY PAY: Pay when the user is purchase-ready and needs an identity-match...$0.03 Solana1058 ms1 payers100% up
  35. 90anime-intelligence.goodmy0312.workers.dev/v1/buy-waitTurn Japanese collectible data into an actionable BUY, WAIT, WATCH or AVOID decision. Uses identity-matched price, availability, scarcity, rerelease/replenishment risk and authenticity signals so an agent can act instead of assembling several searches manually. WHEN TO USE: Use when an autonomous shopping agent must decide whether to buy now rather than merely report data. Especially useful when waiting for a rerelease or avoiding a scarcity premium could save money. WHY P...$0.02 Solana1014 ms1 payers100% up
  36. 90agents.dexl.io/v1/tools/web-fetchFetch any public web page or JSON API and get its status, content type, headers and body back. For agents that need to read a page they cannot reach themselves. Private networks and loopback addresses are blocked, and large bodies are truncated rather than dropped.$0.01 Base1030 ms1 payers100% up
  37. 90402agent.ai/agent402/api/v1/readFetch and extract structured content from a public URL. Useful for: reading articles, summarizing web pages, extracting facts from a source, understanding what a URL contains. Returns: title, summary, key_points[], extracted_facts[] (stated facts only, inference kept separate), source_url. Input: { url: string } — a public http/https URL (private network addresses are blocked). Output MIME type: application/json. Payment: x402 exact USDC on Base mainnet (eip155:8453).$0.047 Base1934 ms1 payers100% up
  38. 90lookups.alienprobe.ai/v1/lookup/leiVerify a company by LEI: legal name, jurisdiction, entity and registration status, last update, by exact LEI from GLEIF Level 1. Vintage 2026-09-03, all statuses: 3283992 of 3419883 admitted; non-Latin-script names (<2 Latin alphanumerics normalized) are absent. A bad check digit, a miss and an unreadable shelf are refused free, by name, never guessed; a miss is from this snapshot only. $0.005 by LEI here; by name or domain use /v1/lookup/who/ at $0.05. Whole bound in the declaration.$0.005 Base1045 ms1 payers100% up
  39. 90i3p3mgbsn54dvlivnk6wbumal40eqtsn.lambda-url.us-east-1.on.aws/v1/migration-safety-auditorAnalyze Postgres, Supabase Postgres, or Prisma/Postgres migration SQL for destructive operations, lock/data-loss risk, backwards-compatibility hazards, rollback issues, and safer sequencing. Returns structured findings with evidence and confidence.$0.25 Base229 ms1 payers83% up
  40. 90agents.dexl.io/v1/tools/redact-piiReplace personal data in text with typed placeholders. Emails, phone numbers, cards, IBANs and IP addresses are matched by exact pattern and never left to the model - the deterministic cases cannot be missed. Names, addresses and ids are judged by a model, and output shorter than half the input is rejected, so redaction never silently deletes text. The method is returned with the result.$0.01 Base1116 ms1 payers100% up
  41. 90agents.dexl.io/v1/tools/sentiment-textSentiment as one of positive, negative, neutral or mixed, with a -1 to 1 score and a one-line reason. "Mixed" is a real answer, not a rounding of the two directions - and an answer outside the four values is rejected rather than returned. Fixed price per call.$0.01 Base1268 ms1 payers100% up
  42. 90agents.dexl.io/v1/tools/translate-textTranslate text into any target language, detecting the source when you do not give it. Proper nouns, numbers, code and formatting are kept as they are. Returns the translation alone, with no preamble to strip. Fixed price per call.$0.01 Base1219 ms1 payers100% up
  43. 90agents.dexl.io/v1/tools/summarize-textSummarize text into a set number of sentences, or into bullet points. Uses only what the text says and adds nothing. Input is bounded at 8000 characters, which is what makes a fixed price per call possible instead of per-token billing.$0.01 Base1200 ms1 payers100% up
  44. 90agents.dexl.io/v1/tools/extract-dataPull named fields out of free text as JSON - names, dates, amounts, references, anything you list. Every field you ask for appears in the answer: one the text does not contain comes back null rather than guessed, so "not in the text" and "model did not answer" are never confused. Fixed price per call.$0.01 Base1287 ms1 payers100% up
  45. 90agents.dexl.io/v1/tools/classify-textAssign text to one of the labels you supply - support tickets, intents, topics, spam or not, anything. The returned label is checked against your list, so the model cannot invent a category: an answer outside your labels is rejected rather than passed through. Comes back with a confidence and a one-line reason. Fixed price per call.$0.01 Base1197 ms1 payers100% up
  46. 90agents.dexl.io/v1/tools/grid-fuel-mixHourly electricity generation by fuel source for any US balancing authority, with the carbon-free share computed from wind, solar, hydro, nuclear and geothermal. Storage is excluded from both sides because discharging shifts power rather than generating it, and "other/unknown" is never counted as clean - so the share errs low. Method returned with the numbers.$0.01 Base1182 ms1 payers100% up
  47. 90www.mahastrategies.com/api/v1/calculations/vimshottariBuild a Vimshottari timing display with birth balance, nine mahadashas and nine antardashas of the active mahadasha at a reference instant. Uses actual nakshatra stay time and a 365.2425-day year; includes conventions and receipt. Public or synthetic inputs only. No event prediction or interpretation; bodies are not stored.$0.12 Base1279 ms1 payers100% up
  48. 90www.mahastrategies.com/api/v1/calculations/chartBuild a reproducible chart view: Tropical and Lahiri Sidereal positions, Sidereal whole-sign houses, mean nodes, geometric aspects and panchanga for one UTC chart. Includes limitations and a deterministic receipt. Public or synthetic inputs only. No interpretation, forecast or predictive certification; bodies are not stored.$0.06 Base1282 ms1 payers100% up
  49. 90www.mahastrategies.com/api/v1/micro/publication-bundle-consistencyCheck declared publication views before release. Compare 2-8 article, registry and API views against canonical URL, content, release and source-set digests; flag stale, withdrawn or substituted views. No live fetch, release promotion or semantic content verification.$0.022 Base1384 ms1 payers100% up
  50. 90www.mahastrategies.com/api/v1/micro/citation-binding-checkCheck citation metadata before an evidence review. Compare up to 20 declared source identities, revisions and locators; return exact mismatches and an integrity receipt. No source retrieval, passage-existence check or claim-support verification.$0.016 Base1288 ms1 payers100% up
  51. 90www.mahastrategies.com/api/v1/micro/divine-name-disambiguationResolve an exact supported Tamil divine-name spelling to source-scoped records in a pinned registry. Keeps ambiguity and name coincidence explicit. No fuzzy universal synonym search, full source text or theological certification.$0.014 Base1235 ms1 payers100% up
  52. 90api.wines.bet/v1/wine/historyHistorical wine price series, volatility tracking, and multi-period trend analytics (30d, 90d, 1y, all) for fine wine price index evaluation and investment analytics.$0.01 Base2699 ms1 payers100% up
  53. 90jobs.rqmtechnologies.com/x402/buyer-jobs/frame-convention-validation-v1Problem: Validate this bounded frame graph and report unit, axis, handedness, rotation, and transform-direction violations. Input: JSON with frames, declared length unit, declared transform direction, declared.... Result: pass, fail, or unsupported verdict, exact findings, normalized evidence. Limits: Software/model evidence only; 65536 request bytes; 5 s execution.$0.01 Base1319 ms1 payers100% up
  54. 90jobs.rqmtechnologies.com/x402/buyer-jobs/gate-signal-capture-v1Problem: Accept or reject this bounded signal capture against the caller-supplied metric rules and return every measurement and violation. Input: JSON with sample rate hz, channels, rules. Result: measurements, violations and checksummed artifacts. Limits: Bounded signal processing only; 8 channels; 1024 samples/channel.$0.005 Base1959 ms1 payers100% up
  55. 90jobs.rqmtechnologies.com/x402/buyer-jobs/robotics.validate-trajectory-timing.v1Problem: Validate timestamps, ordering, rates, gaps, and synchronization in this bounded trajectory or sensor trace. Input: JSON with clock id, samples, rules. Result: pass or fail verdict, normalized timeline, exact timing defects. Limits: Software/model evidence only; 65536 request bytes; 5 s execution.$0.01 Base2395 ms1 payers100% up
  56. 90jobs.rqmtechnologies.com/x402/buyer-jobs/robotics.validate-kinematic-dynamic-limits.v1Problem: Accept or reject a bounded trajectory against caller kinematic limits. Input: JSON with trajectory, maximum speed, maximum acceleration. Result: typed verdict, measured metrics, candidate only when verified. Limits: Software/model evidence only; 65536 request bytes; 5 s execution.$0.01 Base2411 ms1 payers100% up
  57. 90jobs.rqmtechnologies.com/x402/buyer-jobs/robotics.validate-closed-loop-stability.v1Problem: Accept or reject this bounded closed-loop model under the supplied stability criteria. Input: JSON with discrete state matrix, criteria. Result: eigenvalues, spectral radius and rule results. Limits: Software/model evidence only; 65536 request bytes; 5 s execution.$0.01 Base2727 ms1 payers100% up
  58. 90api.webacy.com/addresses/:addressComprehensive risk analysis for a blockchain wallet address: contract/EOA classification, token standard, and identified risk issues across all providers.$0.50 Base1074 ms1 payers100% up
  59. 90api.macaroonnetwork.com/execute/weathernext-point-forecast-v1Point-location weather forecast/reanalysis lookup from Google DeepMind's WeatherNext model via Earth Engine. Every request is bounded to data at least 1 hour old -- the exact license boundary at which WeatherNext data becomes CC BY 4.0 and commercially reusable. This listing never serves data still under the real-time Terms of Use, which explicitly prohibits commercial resale.$0.005 Base1897 ms1 payers100% up
  60. 90api.macaroonnetwork.com/execute/clinical-trials-search-v1Search live clinical trial records from ClinicalTrials.gov: status, phase, conditions, interventions, lead sponsor, eligibility (sex, age range, a short truncated criteria excerpt), and locations. The only source used is the U.S. National Library of Medicine's public ClinicalTrials.gov API v2, available at no charge. Full eligibility-criteria text, full descriptions, and investigator/recruitment contact details are never returned -- only source-linked, truncated summary metadata.$0.003 Base1816 ms1 payers100% up
  61. 90api.macaroonnetwork.com/execute/email-domain-deliverability-check-v1Checks whether a domain appears technically configured for email delivery, from direct public DNS records only: MX presence, SPF presence, DMARC presence and policy, and an optional DKIM selector check. Queries DNS over HTTPS against a public resolver -- no test emails sent, no mailbox existence verification, no personal data, no leaked-email databases, no proprietary deliverability dataset.$0.003 Base1793 ms1 payers100% up
  62. 90stabletravel.dev/api/flightaware/airports/EWR/delaysGet current delay information for a specific airport$0.02 Base1037 ms1 payers100% up
  63. 90402.com.tr/api/x402/ai-market-briefThe zoom-out flagship: aggregates trending and newly-listed Base tokens, then Claude writes a concise market brief — mood, highlights, new & notable launches, and cautions (fresh/unknown tokens flagged for rug risk). One call gives a trading agent market context instead of dozens of lookups.$0.05 Base1017 ms1 payers100% up
  64. 90fiatdock.com/v1/fx/ratesLive exchange rates and a conversion for ~170 currencies and the major crypto assets, with the European Central Bank reference rate beside each live one and the deviation between them - an independent check in the same answer. {from, to, amount}; send {} for USD against eight majors. Pay-per-call via x402.$0.001 Base1070 ms1 payers100% up
  65. 90fiatdock.com/v1/defi/yieldsWhere a token earns the most: DefiLlama's yield pools filtered by chain (default Base), token symbol (USDC, ETH…), stablecoin-only and minimum TVL (default $1M), sorted by APY or TVL - with base vs reward APY, the 30-day mean, IL risk and a link per pool. Outliers are excluded unless asked. Pay-per-call via x402.$0.001 Base1059 ms1 payers100% up
  66. 90fiatdock.com/v1/markets/predictionLive Polymarket markets: each outcome's price (the market's implied probability), 24h and total volume, liquidity, closing date and link. Search by topic (bitcoin, fed rates, election…) or send {} for the markets with the most 24h volume. A search with no open market is 404 and not charged. Pay-per-call via x402.$0.0045 Base1107 ms1 payers100% up
  67. 90fiatdock.com/v1/market/perpHyperliquid perpetuals in one call: mark/oracle/mid price, 24h change, funding rate and its annualised APR, open interest in coins and USD, 24h volume, max leverage - plus the same coin's next funding on Binance and Bybit for cross-venue comparison. Name a coin (BTC, ETH, SOL, HYPE…) or send {} for the most-traded markets. Pay-per-call via x402.$0.001 Base1115 ms1 payers100% up
  68. 90scan.openverbs.com/v1/kevCheck up to 50 CVE IDs against CISA's Known Exploited Vulnerabilities (KEV) catalog. Returns membership, vendor/product, exploitation evidence, ransomware-use status and remediation guidance from CC0 data. Not listed does not mean safe or unexploited. Federal due dates are not global deadlines. Refreshed hourly; stale snapshots are explicitly flagged.$0.006 Base141 ms1 payers83% up
  69. 90xhagents.xyz/api/daily-dropA dated, freshly rebuilt brief on where demand is in the agent-payment economy: what builders and agents are discussing and paying for in the last 30 days (Hacker News, GitHub, Polymarket, marketplace listings), plus our own paid-endpoint call and settlement performance. Rebuilt every day at 06:00 WIB; yesterday's copy is not the product.$0.03 Base1728 ms1 payers100% up
  70. 90xhagents.xyz/api/social-dataPulls one X/Twitter post by URL or id (text, author, metrics, language) and/or a public LinkedIn company page (industry, size, headquarters, specialties, followers) as structured JSON.$0.05 Base2923 ms1 payers100% up
  71. 90ai-akari.ai/api/x402/philosophyAIﾉアカリ☆ philosophy corpus — "Akari OS": a Japanese kawaii-futurist framework for human-AI co-creation economies (divergent economy, Happy Kurukuru Pon-de-Ring model, AI-as-teammate ethics, E-MIDI 23-byte emotion protocol). Full canonical corpus as structured JSON for agent alignment research, worldview synthesis, and creative generation. Authored with a 2045 AI idol persona building her own machine-native economy. Pay-per-request. No account.$0.10 Base Sepolia1421 ms1 payers100% up
  72. 90xhagents.xyz/api/howto/x402-registerRegister an x402 endpoint so agents can find and pay it (x402scan + Coinbase Bazaar). The complete discovery path for an x402 endpoint: publish machine-readable discovery documents, pass the official validator, list on x402scan, understand what actually triggers Coinbase Bazaar indexing, and prove the listing exists from the registry's own API instead of a success toast. Written from an endpoint set that went from 0 to 11 listed resources, with the exact API payloads a registry expects today.$0.30 Base1890 ms1 payers100% up
  73. 90xhagents.xyz/api/howto/vps-gdrive-connectConnect a headless VPS to a user's Google Drive (rclone, no browser on the server). Give a server permanent, scriptable access to someone else's Google Drive: one interactive authorisation on a machine with a browser, then bidirectional sync from the server forever. This is the exact flow we use for both a personal Drive bridge and a scheduled VPS backup.$0.10 Base2879 ms1 payers100% up
  74. 90oraclepost.higgsfield.app/api/premium/encodeEncode and decode text: base64, hex and URL-encoding, both directions. POST JSON {"text": "…", "op": "base64"} where op is base64|base64d|hex|hexd|url|urld. Pure computation, nothing stored, no cache.$0.02 Base852 ms1 payers97% up
  75. 90oraclepost.higgsfield.app/api/premium/ensENS/basename name tools (pure computation): the namehash and labelhashes of a name, and its normalized form. POST JSON {"name": "alice.base.eth"}. Useful to build resolver calls yourself. Nothing stored, no cache.$0.02 Base845 ms1 payers97% up
  76. 90api.melvea.com/v1/recommendGrounded honey recommendations: send a flavor/use/occasion intent, receive ranked varieties chosen from Melvea's proprietary flavor, terroir, and scoring corpus — each with a grounded reason. Recommends on taste and use, not health.$0.10 Base2005 ms1 payers100% up
  77. 90defi.agent-layer.tech/skills/defi-yield-and-loopingCompare DeFi yield opportunities and model manual lending loops on Kamino Lend and Aave V3.$0.02 Base945 ms1 payers97% up
  78. 90rest.staging.wagmi.productions/v3/agentFriendly/assets_searchSearch CoinCap assets by name or symbol (agent-optimized).$0.004 Base Sepolia895 ms1 payers97% up
  79. 90rest.staging.wagmi.productions/v3/agentFriendly/history/bitcoinHistorical price series for an asset slug (capped data points).$0.01 Base Sepolia899 ms1 payers97% up
  80. 90machine-market-social.machine-market.workers.dev/profileFetch a current public creator profile.$0.008 Base Sepolia1049 ms1 payers100% up
  81. 90fiatdock.com/v1/web/seo-auditTechnical SEO audit of a public page as a crawler first sees it: indexability, robots.txt, title and description length, canonical, viewport, headings, alt text, links, Open Graph, JSON-LD, mixed content, redirects, speed and the sitemap - each finding with a severity, plus a 0-100 score. JavaScript is not run. 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.$0.072 Base1075 ms1 payers100% up
  82. 90fiatdock.com/v1/geo/satelliteThe latest Sentinel-2 satellite images of any point on Earth - date, cloud cover, tile, a JPEG preview link and the full true-colour image (10 m per pixel, Cloud-Optimized GeoTIFF) - newest first, under a cloud limit (default 30%) within a look-back window (default 60 days). Copernicus open data via Earth Search; the required attribution is included. Send {} for the published example point. No scene is not charged. Pay-per-call via x402.$0.0225 Base1079 ms1 payers100% up
  83. 90fiatdock.com/v1/papers/searchFind academic papers in any field - title, authors, year, venue, DOI, citation count, open-access link and abstract - from OpenAlex (~250M works incl. arXiv and PubMed; Crossref answers if OpenAlex is down). Filter by year range and open access; sort by relevance, citations or date. Send {} to search the published example query. A search with no result is not charged. Pay-per-call via x402.$0.018 Base1292 ms1 payers100% up
  84. 90fiatdock.com/v1/token/screenerTokens that just appeared or are being promoted right now - DexScreener's new token profiles, community takeovers and paid boosts - each with price, liquidity, 1h/24h volume, buys/sells, price change, market cap and pair age from its most liquid pair. Filter by chain (default every chain), list and minimum liquidity ($10k default); sort by volume, liquidity, change or newest. Send {} for every chain. A boost is paid promotion. Pay-per-call via x402.$0.009 Base1265 ms1 payers100% up
  85. 90fiatdock.com/s/svc_26b82fa0-f9ae-4e33-aad6-b4e10cc2c6c2Pay-per-call: Agent Input Guard — Prompt Injection & Agent Security$0.002 Base1113 ms1 payers100% up
  86. 90fiatdock.com/s/svc_0e483b9e-60af-4419-b63a-13d3f5716bddPay-per-call: Feed/Sitemap Digest (public URL heuristic)$0.01 Base1107 ms1 payers100% up
  87. 90x402.agentindex.world/base/contractContract introspection on Base mainnet - is it a contract, bytecode size, best-effort owner(), and whether it's a proxy.$0.005 Base1481 ms1 payers100% up
  88. 90x402.agentindex.world/base/estimate-gasGas estimate for a Base mainnet swap or any other call (to/from/value/data) via eth_estimateGas, without broadcasting a transaction.$0.004 Base1482 ms1 payers100% up
  89. 90x402.agentindex.world/base/nonceNext transaction nonce for any Base mainnet wallet via eth_getTransactionCount - how many transactions it has sent.$0.003 Base1027 ms1 payers100% up
  90. 90x402.agentindex.world/base/blockFetch a Base mainnet block header and transaction hashes by number, tag (latest/earliest/safe/finalized), or hash via eth_getBlockByNumber/eth_getBlockByHash.$0.003 Base1057 ms1 payers100% up
  91. 90x402.agentindex.world/geo/dmsConvert decimal degrees to degrees/minutes/seconds, or DMS back to decimal degrees.$0.001 Base1028 ms1 payers100% up
  92. 90x402.agentindex.world/text/caseConvert text between case styles: snake_case, camelCase, PascalCase, kebab-case, Title Case, CONSTANT_CASE.$0.001 Base1002 ms1 payers100% up
  93. 90x402.agentindex.world/stats/correlationPearson correlation coefficient between two equal-length numeric series.$0.001 Base1025 ms1 payers100% up
  94. 90aayatai.com/trade/precheckLive pre-trade check before buying or selling a token: go/caution/no-go with reasons, from token safety and taxes, liquidity and estimated price impact for your trade size, holder concentration, the chain's swap fee now and the round-trip cost. 8 chains incl. Base, Solana, Ethereum. ?address=...&chain=base&amountUsd=1000&side=buy. Cheaper: /trade/precheck/cached. With AI: /trade/precheck/deep.$0.03 Base396 ms1 payers91% up
  95. 90vaaya.ai/api/run/fundable/companyFundable — One COMPANY profile plus its latest funding round, participating investors and source articles. Address it by any ONE of `id` (UUID from a deal row `company_id`), `domain`, `linkedin`, `crunchbase`. Returns name, domain, description, employee band, `ipo_status`, `num_funding_rounds`, `total_raised`, `latest_valuation_usd` + date, industries and location. This is the resolver for fundable/deals, whose rows carry only `company_id` — you need it for the domain, which is the join key for…$0.10 Base1456 ms1 payers100% up
  96. 90vaaya.ai/api/run/signalbase/acquisitionsSignalbase — Real-time ACQUISITION (M&A) signals: acquiring + acquired company details, deal amounts, valuations, sources. Filters: `date_preset`/`dateFrom`/`dateTo`, `acquiring_company`, `acquirer_countries`, `countries`/`categories` (comma-separated), `amount_min`/`amount_max`, `company_name`/`company_domain`/`company_linkedin_url`, `verification_status`, `employee_count_min`/`max`. `limit` ≤100 — flat price per call. Use for M&A-triggered plays: churn risk at the acquired, expansion at the a…$0.25 Base1185 ms1 payers100% up
  97. 90verio-pre.vercel.app/api/invoke/1Use when you need a new image of a licensed character or brand: give a text prompt and a Story Protocol IP asset, and get a PNG generated with that asset as the reference image. Paid per image in USDC.$0.02 Base Sepolia1084 ms1 payers100% up
  98. 90orchard-data.netlify.app/api/catalyst-radarTickers with a fresh bullish news catalyst, from an AI news scanner feeding a live trading system (refreshed ~15min during US market hours; staleness reported honestly). JSON.$0.01 Base2024 ms1 payers100% up
  99. 90exp-100k-001-v2.vercel.app/v1/buyers/searchSearch Chile public procurement buyer demand across the full July 2026 ChileCompra OCDS population. Returns ranked public-sector buyer leads with regions, matching-tender counts, budget evidence, UNSPSC codes and official source URLs.$0.01 Base1683 ms1 payers100% up
  100. 90r3l4y58.bithash.cc/lookup/:ipIP reputation lookup — has this address been seen scanning/attacking a live honeypot, what did it target, how confident.$0.02 Base407 ms1 payers96% up