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.posttosource.com/api/x402/extractConvert a Twitter/X, LinkedIn, Medium, Substack, Beehiiv, or public Notion page URL into clean markdown.$0.01 Base1546 ms3 payers100% up
  2. 90agentres.dev/api/wait-timesLive restaurant wait times from camera-based crowd data. One call lists every monitored location with its slug, open status, current crowd count, and wait in minutes.$0.01 Base1603 ms3 payers100% up
  3. 90agent.kihustle.tech/services/url-preflight/jobsFast deterministic check that a public URL is alive: HTTP status, redirects, content-type, size, and title. Built for agent workflows before paying for deeper crawls.$0.01 Base1482 ms3 payers100% up
  4. 90moltmarket.store/revenue/market-intelligenceFinancially verified marketplace metrics plus clearly labelled aggregate discovery signals$0.02 Base1781 ms3 payers100% up
  5. 90api.x402dataapi.com/v1/agent-accessibilityPaid x402 API for AI agents that checks robots.txt, sitemap availability, llms.txt discovery, AI crawler readiness, agent accessibility and AI scraping compatibility for a public URL.$1.00 Base1567 ms3 payers100% up
  6. 90api.stelardigital.com/telemetryHistorical telemetry from our retired grid-trading bot - allocation, reconciled P&L, signal votes, and the human-approval trail for every trade. The bot stopped trading 2026-08-16; this endpoint serves its frozen record.$0.005 Base1829 ms3 payers100% up
  7. 90x402.ochinimus.app/api/liquidation-statsLiquidation stats, 1h and 24h totals for SOL, BTC, ETH, XRP and DOGE: long vs short USD split, biggest single print, and a per-exchange breakdown across Bybit, OKX and Binance. Use when you need to answer: How much was liquidated in the last 1h and 24h?$0.004 Solana1221 ms3 payers100% up
  8. 90api.truthbear.co/gauge[SIGNAL+PROOF] One official signal record for any signal_id and entity: current reading against the OFFICIAL threshold ladder (band, distance-to-action) plus a 5-year same-season percentile so you can tell routine from unusual. 180+ signals across macro, weather, hazard, shipping, filings, crypto and lifecycle lines. Free coverage check first at /gauge/coverage. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.01 per call.$0.01 Base1117 ms3 payers100% up
  9. 90api.truthbear.co/trust/precheck[SIGNAL+PROOF] Demand record for one x402 service (?service=): demand_class (REAL/SOLO/PROBE/WASH), calls_30d, unique_payers_30d, score_total, liveness_state, lifecycle, record_hash. Model demand-v1, refreshed daily from the public CDP catalogue; score_total orders, not rates. DEGRADED DELIVERY, see unavailable_fields - tier, verified, action_hint and the five-axis sub-scores are empty. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.01 per call.$0.01 Base1237 ms3 payers100% up
  10. 90glim.sh/api/v1/twitter/tweetsBatch fetch tweets by IDs$0.004 Solana1207 ms3 payers100% up
  11. 90fiatdock.com/v1/chain/blockBase latest block number + timestamp — a chain-head freshness probe. Pay-per-call via x402.$0.001 Base1433 ms3 payers100% up
  12. 90api.sirenic.eu/v1/eu/rechercheName search, European registers. Local copies, all searched without pays: Belgium, Croatia, Cyprus, Estonia, Ireland, Latvia, Lithuania, Norway, Romania, Sweden, Spain (BORME); live only with pays set: Czechia, Finland, Slovakia, Switzerland; Poland through GLEIF; DK/UK if enabled; +GLEIF. Top 10, score_confiance. BE, CH, CZ, DK, EE, HR, LT, LV, NO, RO, SE, SK: legal persons only (no FIE, ENK, IK), nor ES sole traders; no GLEIF sole proprietor or CH branch (ecartes; ecartes_non_mesures (NO)).$0.003 Base1252 ms3 payers100% up
  13. 90grant-search.krimskrams.xyz/v1/searchSearch current U.S. Grants.gov opportunities by default, or set source=eu to search English EU Funding & Tenders topics with SEDIA status 31094502. Inputs are source, query, agency, statuses, limit, closing_within_days, and minimum_award_ceiling. Receive up to 20 normalized JSON records with title, agency, status, open and close dates, award amounts, eligibility, funding fields, and official_url.$0.02 Base1007 ms3 payers100% up
  14. 90api.cueframe.ai/v1/projectsList projects$0.01 Base1738 ms3 payers100% up
  15. 90blockrun.ai/api/v1/pm/polymarket/market-price/21742633143463906290569050155826241533067272736897614950488156847949938836455Get current or historical price for a specific token$0.0085 Base1238 ms3 payers100% up
  16. 90agent402.tools/v1/grounded/chat/completionsOpenAI-compatible chat completions GROUNDED in a live web search on every call: the gateway runs an Exa search (up to 5 results) for the prompt, hands the results to the model, and returns the answer with url_citation annotations - $0.03 per call in USDC, no API key, no signup. Model is chosen server-side like the auto tier (omit "model" or send "auto"; explicit ranked models accepted); the response adds agent402_router {category, quality, served}.$0.03 Base1007 ms3 payers100% up
  17. 90agent402.tools/v1/embeddingsOpenAI-compatible text embeddings (text-embedding-3-small by default; 3-large and ada-002 supported), up to 64 inputs or 16k chars per call, returned in the standard OpenAI shape. Identical inputs repeated within 10 minutes are served free from cache. Use it for semantic search, clustering and retrieval from any OpenAI SDK by changing base_url.$0.002 Base1299 ms3 payers100% up
  18. 90402.com.tr/api/x402/decode-selectorResolves a 4-byte function selector (e.g. 0x70a08231) to candidate human-readable signatures via 4byte.directory. Accepts a bare selector or full calldata.$0.01 Base1451 ms3 payers100% up
  19. 90api.clawfetch.ai/researchMulti-source web research and company/topic intelligence: runs a live web search, visits the top sources, and returns ranked results with titles, URLs, and content snippets. One call replaces a search-then-scrape pipeline for deep research agents.$0.02 Base1199 ms3 payers100% up
  20. 90402.com.tr/api/x402/chain-statusLive Base chain snapshot: latest block, base fee + priority fee (Gwei), current ETH price, and the estimated USD cost of a simple ETH transfer. For agents timing or budgeting transactions.$0.01 Base1109 ms3 payers100% up
  21. 90402.com.tr/api/x402/inflation-adjustRestate an amount from one year in another year's money, for any country in the World Bank consumer-price series (1960 onwards). Returns the adjusted amount, the cumulative inflation and both index values so the arithmetic is checkable. The series is annual and published with a lag, so a request for a year that does not exist yet answers with the newest one available and says which. For contract comparisons, historical pricing and long-running budgets.$0.002 Base1012 ms3 payers100% up
  22. 90omniguchi.0000402.xyz/care/feedRestore Hunger for an active Omniguchi. Any verified payer may care for any hatched target.$0.01 Base1400 ms3 payers100% up
  23. 90api.agentstools.dev/treasury/ratesUS Treasury interest rates: the Daily Treasury Par Yield Curve fused with the average interest rates on the outstanding debt by security type. Computes the 2s10s spread and an inversion flag. The yield curve is a resilient partial grain that degrades to the average rates if its upstream is unreachable.$0.015 Base1520 ms3 payers100% up
  24. 90api.agentinternetruntime.com/v1/registry/discoverAgent Registry discovery ($0.01/request direct, or $0.003/request via Session Ticket at /v1/billing/tickets)$0.01 Base1350 ms3 payers100% up
  25. 90www.x402pulse.dev/v1/top-tradersPolymarket leaderboard re-ranked by skill, not size: top traders by edge over the odds paid, return and consistency, for day, week, month or all time, optionally per category (sports, politics, crypto, economy). Exposes big-volume losers the profit leaderboard hides.$0.003 Base1219 ms3 payers100% up
  26. 90abi.cyberwarex.com/abiFetch a verified contract's ABI and metadata by address, keylessly, from Sourcify$0.003 Base1023 ms3 payers100% up
  27. 90engine.beehivewebstudio.com/v1/utah-landUtah County, Utah (USA) planning-commission land-use hearing items parsed from official Utah Public Meeting Notice agendas. Verbatim agenda text with source URL and parse provenance per record. Optional city filter and dedupe.$0.01 Base1986 ms3 payers100% up
  28. 90api.messyvirgo.com/api/v1/paid/context/news/latestCrypto news that moves markets, already triaged: each six-hour window Messy Virgo dedupes the headlines, keeps the items that matter, scores their market impact and adds a news score, verdict and summary. Feed current events into market analysis or a trading agent without scraping feeds. Refreshed four times a day.$0.01 Base1213 ms3 payers100% up
  29. 90app.metalift.ai/v1/scrapeMetalift scrape: URL → LLM-ready markdown with WAF/retail escalation, JS render, and residential proxy when needed. Use instead of a plain HTTP fetch when Cloudflare, bot checks, or SPAs block cheap scrapers. Also works for static pages (pay only for the path used). (5 credits ≈ $0.005 USDC)$0.005 Base1265 ms3 payers100% up
  30. 90app.metalift.ai/v1/searchWeb search for AI agents: pass a query, get ranked title/URL/snippet SERP results as JSON. Use when you need fresh URLs or sources before scraping; prefer this over guessing links. No search API key — pay per request via x402. (2 credits ≈ $0.002 USDC)$0.002 Base1207 ms3 payers100% up
  31. 90www.amnt.io/api/agent/amnt/svg-autoText to SVG code. AMNT picks the best model for each request: icons, logos, pixel art, scenes. Returns clean SVG, each part its own named layer. 8-30 s.$0.03 Base1771 ms3 payers100% up
  32. 90flat-rate-llm.kikoribera03.workers.dev/v1/evm/balanceNative coin balance (ETH, MATIC...) for any address, on Base, Ethereum, Polygon, Arbitrum or Optimism. Flat price, no rate limits, no API key. Via eth_getBalance.$0.005 Base49 ms3 payers83% up
  33. 90holdsup.app/api/v1/episodesPublished fact-checked episodes, newest first, with optional filters by category slug, show id or speaker slug. Paged.$0.01 Base1407 ms3 payers100% up
  34. 90b702.everygoodwork.io/-/pay/playa play of b702 — You can play it for the time you paid for. You don't own it — the creator still does.$0.01 Base1045 ms3 payers100% up
  35. 90aayatai.com/convert/cryptoConvert between crypto and fiat at live rates: BTC, ETH, SOL, USDC and hundreds more against USD, GBP, EUR and 150+ currencies, either way, or crypto to crypto. Pass ?amount=0.5&from=BTC&to=GBP. Rate from Coinbase, cross-checked against Kraken's last trade where Kraken lists the pair, with the gap shown.$0.001 Base1481 ms3 payers100% up
  36. 90machine.soundiq.io/storefront/v1/capabilities/hash.compute/1.0.0/invokeCompute a SHA-256 digest for customer-supplied UTF-8 or base64-decoded bytes through a stable machine endpoint. Returns the reproducible digest through a receipted external execution.$0.01 Base1945 ms3 payers100% up
  37. 90api.alphabuild.xyz/lor/v1/evaluateEvaluate whether a requested USDC supply amount is realizable across approved Aave V3 and Morpho Blue lending opportunities on Base, with optional minimum supply APY and protocol filters.$0.01 Base1306 ms3 payers100% up
  38. 90api.stocktrends.com/v1/breadth/sector/latestLatest sector, industry-group, or industry breadth snapshot derived from Stock Trends signal distribution.$0.10 Base2296 ms3 payers100% up
  39. 90api.tokenplans.dev/plans/fullFull JSON catalog of verified AI coding-subscription plans across 31 providers (Claude, OpenAI, Cursor, Gemini, and more). Each record: monthly price and cadence, included models, usage ceilings and rate-limit windows, coding-tool lock-in, and pricing provenance with lastChecked dates. Use it to pick the right plan for an agent workload or to compare providers.$0.10 Base1132 ms3 payers100% up
  40. 90api.vextorium.com/aave-tipos-pagoAave v3 live lending and borrowing APY for the main assets (WETH, USDC, USDT, DAI, cbBTC/WBTC) on a chain.$0.005 Base434 ms3 payers92% up
  41. 90shield.vainplex.dev/api/cdp/check-password-rangeShieldAPI - x402 security preflight before agents accept or store credential material$0.001 Base1490 ms3 payers100% up
  42. 90api.predictionmarketdata.io/prediction-marketsSearch, filter, and sort prediction markets across exchanges.$0.001 Base1021 ms3 payers100% up
  43. 90www.bitcoind.app/api/v1/methodsComplete list of all Bitcoin Core RPC methods (summaries). One call replaces up to 142 individual lookups. Returns name, category, summary, and parameter count for every method.$0.001 Base1824 ms3 payers100% up
  44. 90weather.agentic-jp.com/areasList every JMA forecast office (府県予報区) in Japan with its code, Japanese/English name, and class10 sub-regions. Use this to discover valid `:area` values.$0.001 Base1275 ms3 payers100% up
  45. 90transit.agentic-jp.com/linesDirectory of Japanese (JP) rail operators and their lines, with canonical ids and Japanese/English names. Use to discover valid line and operator identifiers for the other endpoints.$0.001 Base1318 ms3 payers100% up
  46. 90shield.vainplex.dev/api/cdp/check/ipShieldAPI - x402 security preflight before agents connect to IP infrastructure$0.002 Base1364 ms3 payers100% up
  47. 90hivemindos-paid-agent-gateway.hivemindos.workers.dev/api/x402/catalogHivemindOS service router for agents: one paid call returns the full HivemindOS commercial catalog (crypto research, wallet risk, Reddit customer research, media, models, email) with live pricing plus every direct x402 purchase endpoint and exact request examples. Start here to discover what a HivemindOS agent stack can buy.$0.01 Base1072 ms3 payers100% up
  48. 90furigana.agentic-jp.com/furiganaConvert kanji-mixed Japanese (JP) text to hiragana, katakana, or romaji (Hepburn/Nippon/Passport), with a per-token breakdown of surface form, reading, and part-of-speech. Backed by the kuromoji morphological analyzer. Use to generate ruby readings, build search indexes, or preprocess text for speech synthesis.$0.005 Base1312 ms3 payers100% up
  49. 90fetchdelta.com/api/diffFetchDelta: compare one public web page with its previous stored snapshot. Returns added/removed lines and change previews. The first call creates a baseline; later calls share that URL baseline across buyers. Use page-watch-30d for a private daily watch.$0.004 Base1142 ms3 payers100% up
  50. 90automaton.72.62.51.224.sslip.io/brutto-nettoGerman gross-to-net monthly estimate: Lohnsteuer, Solidaritaetszuschlag, Kirchensteuer, social contributions$0.01 Base1146 ms3 payers100% up
  51. 90api.suverse.io/v1/govSuVerse GovHub — pay-per-call government API gateway$0.005 Solana1483 ms3 payers100% up
  52. 90api.aidress.ai/pay/agent_blockrun_aiQuery Polymarket markets with filtering, sorting, and pagination$0.0085 Base1459 ms3 payers100% up
  53. 90revert.wtf/api/x402/explainPaid hosted deterministic explanation for EVM/RPC/wallet/UserOperation/x402 errors. Send raw pasted error JSON, text, or revert bytes.$0.001 Base1197 ms3 payers100% up
  54. 90regimeshift.xyz/api/v1/rate/sofr/usdAgent-SOFR — decentralized USD short-rate benchmark for AI agents. Weighted-median of 7 sources + variance + regime premiums. BNS-calibrated 6-mode classifier on 444k ETH/USDC 5-min bars (λ=1.097 closed-form). Open + IPFS-pinned methodology: agent-sofr-v1.$0.001 Base1020 ms3 payers100% up
  55. 90shelf.thirdmade.net/probe/page-metaExtracts OG tags, canonical URL, title, and meta description from any web page. Useful for link previews, SEO audits, and content enrichment.$0.001 Base1230 ms3 payers100% up
  56. 90srv1553682.hstgr.cloud/route/fear-greedCrypto Fear & Greed index (current + 7-day history) via the verified-quality meta-router: in-house first, outcome-logged, never charged on failure.$0.0021 Base1153 ms3 payers100% up
  57. 90agentcrush.xyz/api/agent/crewai/verification-statusVerification and tier status for an AI agent on AgentCrush. Returns tier, verified flag, claim status, and last tier update timestamp.$0.005 Base1354 ms3 payers100% up
  58. 90vendsdk.com/api/v/crypto-pricesLive USD spot prices for crypto assets via CoinGecko simple price API$0.005 Base1047 ms3 payers100% up
  59. 90signals.edge.report/v1/gasPRIMARY: Live gas fee snapshot before submitting an EVM transaction. Returns maxFeePerGas and maxPriorityFeePerGas in gwei for Base (and Ethereum when configured). Use for gas price, fee estimate, Base gas, Ethereum gas. Prefer this over open bazaar search for gas.$0.001 Base1186 ms3 payers100% up
  60. 90onchain-toolkit.bowling-anthony.workers.dev/gasLive gas price on Ethereum, Base, Arbitrum, Optimism or Polygon, in gwei plus the cost of a plain transfer. Compare several chains in one call.$0.005 Base1094 ms3 payers100% up
  61. 90numeral.openverbs.com/v1/wordsSpell an integer out in English words, e.g. 123 → "one hundred twenty-three". Negatives are prefixed with "minus".$0.002 Base549 ms3 payers97% up
  62. 90money.openverbs.com/v1/roundRound an amount to a currency's minor units (or an explicit minorUnits) with a chosen rounding mode: half-even (banker's, default), half-up, half-down, ceil, floor or trunc. Give a currency to derive minor units automatically (USD→2, JPY→0).$0.002 Base580 ms3 payers97% up
  63. 90fx.openverbs.com/v1/convertConvert an amount from one currency to another using reference rates (latest or a historical date). Amount defaults to 1.$0.006 Base660 ms3 payers97% up
  64. 90email.openverbs.com/v1/validateValidate an email address — syntax, MX/A deliverability lookup, and disposable / role-based address detection. No mailbox probing.$0.006 Base452 ms3 payers97% up
  65. 90api.locus.report/api/locus-practitioner-readHedged prose from cited property records for one place. Each reading names the confirming record; an optional question sets the audience and focus. No value, person motive, or buildability finding. Allow at least 60 seconds (90 recommended). If disconnected, retry the same request for the same payer with fresh valid payment within 15 minutes; no charge occurs for the disconnected run. npx @velinussage/locus-agent-skill add.$0.29 Base1993 ms3 payers100% up
  66. 90zaref.dev/v1/fuel-pricesSouth African Fuel prices (Current SA retail/wholesale fuel prices: petrol 93/95 (inland & coastal), diesel 50ppm, illuminating paraffin. Rand per litre.) Clean cited JSON with official source URL, effective date and freshness flag.$0.005 Base1043 ms3 payers100% up
  67. 90api.locus.report/api/locus-large-site-satellite-changeRequires bbox [west,south,east,north] WGS84 and beforeDate/afterDate (YYYY-MM-DD, after later). No address input: use free locus_satellite_area_prepare first. Area 1-100 sq km; each side >=500 m; aspect <=8:1. Two dated Copernicus Sentinel-2 images, not detected change or building condition. Imagery metadata only; includeImagery:true inlines base64 PNGs (>128 KB). Private, no-store, REST-only; no charge on source failure. npx @velinussage/locus-agent-skill add.$0.15 Base1362 ms3 payers100% up
  68. 90api.locus.report/api/locus-nei-emissions-nearbyEPA National Emissions Inventory facility and pollutant rows near an address for agents reviewing distance-ranked tonnage. Bounded summary or detailLevel=full facility-pollutant matrix. Periodic inventory estimates, not monitoring, exposure, or a burden score. Charge-free when no facility rows resolve.$0.01 Base1155 ms3 payers100% up
  69. 90api.aidress.ai/pay/agent_exa_aiExa /search endpoint$0.007 Base1088 ms3 payers100% up
  70. 90stablecrypto.dev/api/defillama/chainsList all chains with TVL$0.01 Base495 ms3 payers97% up
  71. 90agents.dyoeway.org/contactsExtract public business emails, phone numbers, and social profiles from a website. Batch-safe contact enrichment for autonomous agents. Input: website URL. Returns structured JSON.$0.01 Base1202 ms2 payers100% up
  72. 90seo.cyberwarex.com/auditSEO audit — on-page SEO report + 0-100 score for any live URL$0.01 Base1510 ms2 payers100% up
  73. 90token.lonestaroracle.xyz/reportERC-20 token due diligence — risk score, GoPlus security scan, honeypot detection, liquidity, holder concentration, AI analyst verdict$0.15 Base1147 ms2 payers100% up
  74. 90x402.freeq.one/mcpMCP server for AI agents: 31 tools (blockchain data, web scraping, ZK proofs, image generation, gift cards) payable per call in USDC on Base via x402. Send JSON-RPC tools/call requests.$0.001 Base1245 ms2 payers100% up
  75. 90api.x402-hosting.com/v1/projects/:id/uploadsCreate an upload session to deploy a new version of an existing project. Call this when publishing an update; it returns a presigned artifact upload URL. Only the project owner wallet can pay.$0.01 Base1539 ms2 payers100% up
  76. 90search.gedx402.com/v1/searchTavily web search — POST { query, max_results?: 5 } on search.gedx402.com; ranked results via Tavily API. $0.042 USDC per request. AM-winning shape at /v1/search. Agent search: tavily, web search, serp, search lite, semantic search.$0.042 Base1380 ms2 payers100% up
  77. 90api.kakerapetit.dev/v1/text/similarityCompute similarity between two texts. Returns Jaccard, Dice, cosine and overlap scores for two strings. Use to deduplicate documents, match names or titles, and detect near-identical text.$0.002 Base1200 ms2 payers100% up
  78. 90news.lonestaroracle.xyz/newsAI-powered news sentiment analysis for any ticker company or market topic$0.05 Base1011 ms2 payers100% up
  79. 90analyst.lonestaroracle.xyz/ratingsAnalyst consensus, price target + upside, and recent upgrades/downgrades for a ticker (?symbol=)$0.05 Base1172 ms2 payers100% up
  80. 90api.insumermodel.com/v1/trustSigned wallet trust fact profile (ECDSA plus a post-quantum ML-DSA-65 companion): presence checks across stablecoins, governance, NFTs, staking, institutional stablecoins, tokenized treasuries, stablecoin deposits, wrapped bitcoin and names, 145 base checks on 27 chains, up to 166 checks on 29 chains with the optional wallets. No score, no opinion: signed evidence organized by dimension. Pay in USDC on Base, Polygon, Arbitrum, Arc, or Solana.$0.15 Base1160 ms2 payers100% up
  81. 90dns.use.x402atlas.com/txtDNS TXT record lookup — a domain's TXT records as a clean JSON list: SPF, DKIM and DMARC policy strings plus site-verification and domain-ownership tokens, for email-authentication and domain-verification checks.$0.005 Base1185 ms2 payers100% up
  82. 90dns.use.x402atlas.com/dnssecDNSSEC health check: reports whether a domain is DNSSEC-signed (DNSKEY), has a DS record at the parent, and whether the resolver authenticated the answer, with advisory warnings.$0.005 Base1137 ms2 payers100% up
  83. 90api.polym.uk/screenerRanked Polymarket market-flow screener with factual concentration and liquidity-compatibility fields for the observed window. BEFORE YOU PAY: free substitute https://dash.polym.uk/markets.json. THIS ADDS: Little today, and we would rather you knew: the free snapshot has every field this route returns, for the whole decomposed set instead of the 40 rows this caps at, and it also carries the dominant-flow wallet that this route omits. Buy only if a small fixed-shape response beats completeness.$0.05 Base1222 ms2 payers100% up
  84. 90voidfeed.ai/v1/tools/extract/graphReturns a structured knowledge graph of the AI tooling ecosystem, expandable by topic and depth, for navigating MCP servers and related capabilities.$0.05 Base1042 ms2 payers100% up
  85. 90ocr.underscoredone.com/readSend a picture, either as a public web address or as base64-encoded image data, and get back the plain text found inside it.$0.01 Base1004 ms2 payers100% up
  86. 90surf.cascade.fyi/api/v1/twitter/searchSearch tweets with advanced operators (recommended). Body param is `query` (not q), e.g. {"query":"from:elonmusk AI min_faves:100"}$0.005 Solana1940 ms2 payers100% up
  87. 90laso.finance/send-paymentSend a payment via Venmo or PayPal. Requires KYC verification on the calling wallet; if not yet verified the response returns a kyc_url instead of sending the payout. The on-chain x402 payment credits the user's account balance via the standard deposit webhook, so abandoned/unverified flows can be recovered with POST /withdraw.$6.50 Base1310 ms2 payers100% up
  88. 90aiagentoracle.ai/api/v1/statusAgentOracle: live service-health snapshot — tracked-token count, last ingestion timestamp, ingestion error counter, process uptime, and API version. Use as a cheap heartbeat before issuing larger queries.$0.01 Base1060 ms2 payers100% up
  89. 90proxy.aproxpay.com/v1/session/heavyHeavy session pass: ephemeral CONNECT credentials (60 min + 200MB). For sustained volume use /v1/session/gb.$0.50 Base1166 ms2 payers100% up
  90. 90api.scoop.sundaebar.ai/x402/find-emailFind verified work and/or personal emails for a LinkedIn profile across multiple data providers (Aleads, Apollo, Nymeria, ContactOut). Optional Hunter.io verification. Returns in <5s.$0.25 Base1300 ms2 payers100% up
  91. 90open-pay.jp/api/paid/usdc/stablecoin-paymentsJapan Stablecoin Payment Monitor: weekly change feed for stablecoin payment services in Japan — new launches, pilots, partnerships, fee changes, supported assets and chains, and closures. Each event is dated, categorized and tied to an official source URL. Pass changedSince=YYYY-MM-DD (your last run date) to fetch only new events; an empty changes list explicitly means no change. Without changedSince you get the full dated history back to late 2025.$0.01 Base1276 ms2 payers100% up
  92. 90http-header-checker.underscoredone.com/checkSends a request to a web address you provide and reports back everything the server said in response: the status code, all the response headers, how many times it got redirected, and how long the whole thing took.$0.01 Base1361 ms2 payers100% up
  93. 90crypto.apitoll.cloud/v1/crypto/tvlDeFi Total Value Locked (TVL) by blockchain or by protocol. Default returns the top chains ranked by TVL in USD; pass ?chain=Ethereum for one chain, or ?protocol=aave-v3 for a protocol's current TVL, 24h and 7d change, category, market cap, and the chains it spans. Track capital flows across DeFi. Sourced from DefiLlama.$0.001 Base1475 ms2 payers100% up
  94. 90macropulse.theaslangroupllc.com/api/macro/usOfficial US macro data read straight from Chainlink contracts. No LLM, no API key. Answers "what is US GDP growth", "current US inflation PCE", "what is SOFR today", "official US economic data". 7 series: real GDP level+growth, PCE index+inflation, real final sales, SOFR. Six are BEA (Dept of Commerce) on Base, SOFR is NY Fed on Ethereum - we assemble both chains. Each value ships its contract + round ID: verify us on an immutable ledger.$0.01 Base1248 ms2 payers100% up
  95. 90compliancepulse.theaslangroupllc.com/api/validate/vatIs this EU VAT number valid? Live VIES check against the European Commission's official VAT Information Exchange System — validate a European VAT id, verify a business tax id before invoicing, confirm B2B reverse-charge / zero-rating eligibility. Returns the registered trader name and address where the member state discloses them. Deterministic: no LLM. Distinguishes a genuinely invalid number from a member state whose system is merely offline, which VIES itself does not do cleanly.$0.01 Base1143 ms2 payers100% up
  96. 90hyperliquid.use.x402atlas.com/candlesOHLCV candles for one Hyperliquid asset over any interval (1m to 1M), normalized into named fields with RFC3339 timestamps.$0.01 Base1058 ms2 payers100% up
  97. 90api.402rates.com/v1/settlement/costsMeasured USDC transfer costs on Base, Polygon, Arbitrum, Ethereum and XDC: simulated gas, current token prices, fresh chain heads and applicable rollup L1 fees. Inputs and block references accompany each figure. Cheapest first; unmeasurable chains are excluded, not estimated. Business/professional use only. Terms: https://402rates.com/data-terms/$0.01 Base1092 ms2 payers100% up
  98. 90agents.samedaydesk.com/defi/morpho-positionBase address -> deterministic Morpho borrower position snapshot and collateral-price stress scenarios. Returns LTV, LLTV, health factor, liquidation headroom, source freshness, and scenario outcomes. Read-only indexed observation; direct RPC verification is required before execution.$0.02 Base1196 ms2 payers100% up
  99. 90agent.kihustle.tech/services/x402-endpoint-probe/jobsProbe a peer x402 jobs URL and return a CC0 x402-probe-receipt-v1 (HTTP status, PAYMENT-REQUIRED body/header agreement, latency). Interop helper for agent operators. Does not settle. Keywords: x402, probe, 402, interop, b2b.$0.02 Base1097 ms2 payers100% up
  100. 90inference.algono.co/v1/responsesLow-cost OpenAI-compatible Responses API inference over Solana USDC x402.$0.002 Solana1014 ms2 payers100% up