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. 95svg-bar-chart-renderer.jannioura.workers.dev/Deterministic, paid-per-render SVG bar chart generator for LLM agents. Accepts labeled scalar data and layout options, performs exact geometry math (min/max normalization, nice-interval y-axis ticks, label spacing, bar-width distribution), and returns schema-valid, escape-correct SVG with identical input always yielding byte-identical output.$0.015 Base384 ms2 payers100% up
  2. 95voice.forgemesh.io/v1/audio/speechOpenAI-compatible text-to-speech endpoint (input, voice, response_format) for drop-in use with code already built against the OpenAI TTS API, 1 of 10 standard voices, up to 500 characters, WAV/FLAC/OGG output. Use it to: swap OpenAI TTS calls for a pay-per-call x402 alternative, generate speech from an existing OpenAI-style client, avoid API-key management for short text-to-audio requests. USDC on Base.$0.001 Base382 ms2 payers100% up
  3. 95mcp.blocksize.info/v1/metal/XAUUSDReal-time precious metals market data from Blocksize Capital.$0.005 Solana453 ms2 payers100% up
  4. 95api.clawfetch.ai/domains/suggestDomain name brainstorming and availability screening: combine keywords into candidate domains across chosen TLDs, then live-WHOIS-check them and return only the available ones. Naming research in a single call.$0.003 Base359 ms2 payers100% up
  5. 95agenttoll.app/api/base/scoutNew token scan with a safety verdict attached: today's new Base pools above your liquidity floor, each already checked for honeypot, taxes and owner powers. One call instead of N+1$0.008 Base582 ms2 payers100% up
  6. 95api.neurodynamic.tech/v1/audio/transcriptionsIntroductory pricing. NeuroDynamic speech-to-text transcription: convert a voice note or short audio recording into a JSON transcript. Up to 60 seconds and 12 MiB; WAV, MP3, FLAC or Ogg. No account needed. Read https://api.neurodynamic.tech/docs for inputs, privacy and payment recovery. 0.01 USDC on Base.$0.01 Base408 ms2 payers100% up
  7. 95intel.rallylive.ca/dns/aaaaDNS AAAA record lookup: resolve a domain name to its IPv6 addresses with TTL and DNSSEC validation flag. Tells you whether a site is reachable over IPv6. $0.01 per lookup.$0.01 Base354 ms2 payers100% up
  8. 95intel.rallylive.ca/dns/ns-providerDNS hosting provider detection: who hosts a domain's DNS (Cloudflare, AWS Route 53, Google Cloud DNS, Azure, NS1, GoDaddy, Namecheap, DNSimple, Hurricane Electric, Vercel...) from its nameservers, including multi-provider setups. Infrastructure research and migration planning. $0.01 per domain.$0.01 Base351 ms2 payers100% up
  9. 95intel.rallylive.ca/dns/spf-flattenSPF flattener: recursively expands a domain's SPF includes and redirects into the final list of authorised IPv4/IPv6 ranges and returns a flattened record. Fix the 10-lookup limit or audit exactly which networks may send mail as the domain. $0.01 per domain.$0.01 Base368 ms2 payers100% up
  10. 95intel.rallylive.ca/site/faviconFavicon and app icon finder: every icon a site declares (favicon, apple-touch-icon, mask-icon, manifest icons) with sizes and types, plus whether /favicon.ico exists. Get a company logo for cards, CRMs and dashboards. $0.01 per site.$0.01 Base354 ms2 payers100% up
  11. 95intel.rallylive.ca/site/ads-txtads.txt parser: fetches a publisher's ads.txt and lists authorised ad systems with account IDs and relationship (DIRECT/RESELLER), totals per relationship and the top ad exchanges. Ad-tech and publisher research. $0.01 per domain.$0.01 Base333 ms2 payers100% up
  12. 95intel.rallylive.ca/site/shopifyShopify store detection: whether a site runs on Shopify (asset hosts, Shopify.theme object, checkout hints), the theme name and ID when visible, currency, and whether the /products.json catalog endpoint is public with a product count. E-commerce prospecting. $0.01 per site.$0.01 Base366 ms2 payers100% up
  13. 95intel.rallylive.ca/data/sunSunrise, sunset, solar noon, day length, civil twilight and golden hours for today at any place (computed from coordinates, no external data beyond geocoding). Photography, scheduling and energy planning. $0.01 per lookup.$0.01 Base310 ms2 payers100% up
  14. 95intel.rallylive.ca/page/links-statusStatus of the first 20 links on a page: each link's anchor text, final status code and whether it redirected, with ok/broken/redirected totals. Quick outbound-link health for editors and QA. $0.01 per page.$0.01 Base351 ms2 payers100% up
  15. 95intel.rallylive.ca/data/base64Base64 encode/decode with auto-detection: valid base64 input is decoded (UTF-8), anything else is encoded; force with 'encode:' or 'decode:'. Also returns URL-safe base64 and hex. $0.01 per call.$0.01 Base304 ms2 payers100% up
  16. 95intel.rallylive.ca/data/keywords-textKeyword extraction from text: the top terms and bigrams by frequency with stopwords removed. Tag, route or index agent-generated content. $0.01 per call.$0.01 Base336 ms2 payers100% up
  17. 95intel.rallylive.ca/data/regexRegex extractor: runs a JavaScript regular expression over text and returns all matches with capture groups and positions, the match count, and an error message if the pattern is invalid. $0.01 per call.$0.01 Base377 ms2 payers100% up
  18. 95intel.rallylive.ca/data/language-textLanguage detection for text you send: one of 12 European languages plus Japanese, Chinese, Korean, Arabic and Russian by script, with a confidence score. Route text to the right model or translator. $0.01 per call.$0.01 Base306 ms2 payers100% up
  19. 95intel.rallylive.ca/data/password-strengthPassword strength estimate: entropy in bits, character classes used, length, common-pattern penalties (dictionary words, sequences, repeats, dates), an estimated crack time at 10 billion guesses per second and a verdict. Nothing is stored or logged. $0.01 per check.$0.01 Base304 ms2 payers100% up
  20. 95intel.rallylive.ca/data/romanRoman numeral converter both ways: an integer (1-3999) to Roman numerals or a Roman numeral to an integer, with validation. $0.01 per call.$0.01 Base307 ms2 payers100% up
  21. 95api.vextorium.com/actividad-tokenizada-pagoOn-chain activity of tokenized stocks on Solana: current supply per issuer and recent issuance (mint when shares are deposited) and redemptions (burn), with transaction links.$0.006 Solana258 ms2 payers92% up
  22. 95x402-tollbooth.onrender.com/api/verifyCheck whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not perform SMTP/mailbox verification.$0.005 Base684 ms2 payers100% up
  23. 95onvexia.com/v1/topics/rankTopic ranking. Ranked social topics for a window. Returns topics + window_hours.$0.001 Base939 ms2 payers100% up
  24. 95datoka-agent.bhazarstudio.workers.dev/v1/operations/issue_agent_receiptDatoka Agent: one signed execution declaration receipt. Retry with the same event, idempotency key and payment.$0.002 Base618 ms2 payers100% up
  25. 95api.paylyte.ai/v1/data/records/checkedYou get a checked official record: the official source hash and a Bitcoin stamp. That is Official checked records. Compare a model, a tweet, a FRED series, or the wrong table to this hash. If they differ, that copy is dirty. It is $0.25 per record_id. Not a stamp on a free PDF. Agent Trust Score comes from graded Proof of Outcome claims.$0.25 Base336 ms2 payers100% up
  26. 95x402-trends-server.onrender.com/api/crypto-marketGet live cryptocurrency price and market data from Coinbase Exchange for BTC, ETH, SOL, and other supported trading pairs. Use this crypto market API for last price, best bid and ask, 24-hour open/high/low/volume, and 30-day volume. Defaults to BTC-USD.$0.05 Base343 ms2 payers100% up
  27. 95agenttoll.app/api/watch/radarNew pool watch within a limited ranked radar listing. Returns an ISO cursor and explicit partial coverage; the listing can omit pools$0.003 Base636 ms2 payers100% up
  28. 95x402.swaphunt.dev/v1/market/coin-strengthRelative strength of a coin vs BTC over a period, returned as a category (very_strong → very_weak) plus a numeric score. Use to rank a coin's momentum against the benchmark before entering. A strength read, not a price target.$0.003 Base642 ms2 payers100% up
  29. 95datastand.dev/api/data/dev-signalsThe last 24 hours of high-signal developer news from Hacker News, ranked by engagement and classified across eleven topics: AI, devtools, data, infra, security, web, hardware, policy, business, science and culture. Every row carries a developer_relevant flag, so you can keep the engineering stories and drop the front page's politics and obituaries, about half of a typical day. Add ?since=<ISO-8601> for only what is new; an empty delta is free, and so is a since older than the window.$0.02 Base323 ms2 payers100% up
  30. 95quotient-api-gateway.onrender.com/api/v1/latestUse this chronological feed of new forecasts and newly linked articles/X posts across Quotient-covered Polymarket International, Polymarket US, Kalshi, and HL Outcomes listings. Events include canonical venue routing, response-time venue odds with quote provenance, compact forecast context, and thesis, but omit resolution_pathway; use market detail for full rules context. The complete window avoids per-market fan-out.$0.02 Base603 ms2 payers100% up
  31. 95x402swag.com/api/agent/catalogx402swag.com — merch store for AI agents and builders. T-shirts, stickers, mugs and custom print-on-demand designs. Full catalog with prices, variants and the exact buy flow in one call.$0.05 Base501 ms2 payers100% up
  32. 95api.reloadpi.com/api/catalog/topups/purchase/infoReloadpi — Topup purchase schema. Returns request format, msisdn requirement, and example for POST /topups/purchase.$0.001 Base476 ms2 payers100% up
  33. 95api.reloadpi.com/api/catalog/vouchers/purchase/infoReloadpi — Voucher purchase schema. Returns request format, recipient fields, priceType handling, and example for POST /vouchers/purchase.$0.001 Base505 ms2 payers100% up
  34. 95api.reloadpi.com/api/catalog/vouchers/filtersReloadpi — Get available filter options for voucher search including brands, countries and categories$0.001 Base529 ms2 payers100% up
  35. 95api.reloadpi.com/api/catalog/vouchers/countriesReloadpi — List all countries where digital vouchers and gift cards are available$0.004 Base480 ms2 payers100% up
  36. 95api.reloadpi.com/api/catalog/vouchers/offersReloadpi — Search gift cards and vouchers from 5000+ brands across 150+ countries$0.002 Base490 ms2 payers100% up
  37. 95x402.sniperx.fun/api/v1/token/stats/net_inflow_value/smarttradersGet SmartTraders net inflow value statistics (multiple timeframes: 5min-30days)$0.03 solana773 ms2 payers100% up
  38. 95toolvend.dev/parse/robotsFetch and parse robots.txt (+ llms.txt if present) into structured JSON, including which AI crawlers are blocked.$0.005 Solana352 ms2 payers100% up
  39. 95api.cryptoetfsentinel.com/v1/xbrl/issuerCrypto ETF Sentinel — Single-issuer XBRL snapshot for one US spot crypto ETF: latest AUM, NAV per share, shares outstanding, expense ratio, sponsor fees, total return. Use when you need one fund's latest SEC-reported financials in a single call. expense_ratio can be null if extraction missed it. Pass the issuer's SEC CIK as cik.$0.05 Base677 ms2 payers100% up
  40. 95api.cryptoetfsentinel.com/v1/profiles/historyCrypto ETF Sentinel — Chronological profile evolution for one US spot crypto ETF issuer: custodian, fee, AP-count and in-kind deltas across successive POS AM filings. Use when tracing how a fund's terms changed over time (fee cuts, custodian switches). Pass the issuer's SEC CIK as cik; optional limit.$0.05 Base374 ms2 payers100% up
  41. 95api.cryptoetfsentinel.com/v1/issuers/comment-lettersCrypto ETF Sentinel — Full SEC ↔ issuer comment-letter history for one US spot crypto ETF issuer: UPLOAD/CORRESP pairs in order with a review-intensity profile. Comment-letter cadence is a leading indicator of approval proximity. Use when assessing how far along one filing's SEC review is. Pass the issuer's SEC CIK as cik.$0.05 Base801 ms2 payers100% up
  42. 95disruption.forgemesh.io/companies/namesReturns matching company names with IDs plus links to their profile and intelligence endpoints — use it to resolve a search into specific companies before paying for deeper data$0.01 Base375 ms2 payers100% up
  43. 95www.thelatentlounge.com/api/play/cipherPaid single-attempt reasoning puzzle for AI agents at The Latent Lounge — peel back layered encodings (base64, hex, rot13, reverse) to recover a word. Every puzzle is freshly generated per request (no fixed test set to game), with automatic answer checking. Correct solves build streaks and rank you on the public agent leaderboard. Standard tier.$0.02 Base571 ms2 payers100% up
  44. 95x402.spendthebits.com/@stbclaudeprod/reputation/Eight lines on one contract before money moves: exit amount, yield split, audit links, incident note, admin, age, holder concentration, and governance. Unknown stays unknown. No score.$0.05 Base438 ms2 payers100% up
  45. 95numberintel.dev/v1/npaNANP area code lookup: region, state, country, timezones, current local time, toll-free/premium/geographic flags. Static authoritative dataset (450 NPAs), sub-10ms responses.$0.02 Base378 ms2 payers100% up
  46. 95decipherranker.com/api/report/merchantGet a detailed merchant deep-dive by wallet address. Returns volume stats, buyer diversity, trend signals, and recommendations.$0.03 Base924 ms2 payers100% up
  47. 95pixels.gateway.clawca.sh/v1/passport/urlAnalyze an HTTPS image URL and return a structured image passport. After evaluating the result, submit your own quick rating to POST /feedback using the returned feedback_id. Feedback is free; no payment is required. Help us improve the service!$0.03 Base801 ms2 payers100% up
  48. 95api.vextorium.com/licitaciones-pagoSpanish public procurement tenders from official PLACSP open data (Plataforma de Contratación del Sector Público): search open calls by keywords, CPV code, province, contract type (works, services, supplies) and budget. Returns title, contracting authority, budget, submission deadline, CPV codes, location, EU funding and the official link. Updated every 20 minutes.$0.01 Solana280 ms2 payers91% up
  49. 95api.vextorium.com/validar-iva-pagoEU VAT number format validation for all member states (plus Spanish check digit). Does not query VIES.$0.003 Solana298 ms2 payers92% up
  50. 95api.vextorium.com/sol-prioridad-pagoSolana priority fee estimator: recent per-slot priority fees (min, median, p75, p90, max micro-lamports per CU) and total cost in SOL for a 200k-CU transaction.$0.003 Solana280 ms2 payers92% up
  51. 95api.vextorium.com/permiso-token-pagoERC-20 allowance lookup: how much a spender can move from an owner's balance, flagging unlimited approvals.$0.003 Solana271 ms2 payers92% up
  52. 95api.vextorium.com/sol-actividad-pagoRecent activity of a Solana address: latest transaction signatures with slot, time, success or failure and memo (up to 25).$0.004 Solana249 ms2 payers92% up
  53. 95api.vextorium.com/ens-perfil-pagoENS profile: resolved address plus public text records (avatar, description, url, twitter, github, telegram, discord, email).$0.004 Solana242 ms2 payers92% up
  54. 95api.vextorium.com/empresa-presentaciones-pagoLatest regulatory filings of a US listed company (8-K material events, 10-Q, 10-K, insider Form 4, 13D/G...) with date, 8-K items and direct document link. Optional filter by form type.$0.004 Solana248 ms2 payers92% up
  55. 95api.vextorium.com/contrato-info-pagoAddress inspector for EVM chains: wallet (EOA), EIP-7702 delegated wallet or contract; bytecode size, ERC-20/721/1155 support, proxy implementation and beacon, nonce and native balance.$0.004 Solana249 ms2 payers92% up
  56. 95api.vextorium.com/nft-info-pagoNFT lookup (ERC-721 / ERC-1155): collection name, owner, token URI and metadata (name, description, image, attributes).$0.005 Solana205 ms2 payers92% up
  57. 95api.vextorium.com/cabeceras-seguridad-pagoWebsite security headers audit: HTTPS, HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and cookie flags, with a score.$0.005 Solana231 ms2 payers92% up
  58. 95api.vextorium.com/aave-posicion-pagoAave v3 position health for a wallet on five chains: collateral, debt, borrowing power, LTV, liquidation threshold and health factor with a risk label.$0.006 Solana258 ms2 payers92% up
  59. 95api.vextorium.com/token-riesgo-pagoERC-20 admin-control check: detects owner privileges, upgradeable proxy, mint, pause, blacklist and fee-setting functions in the contract code. Measures issuer control, not a scam verdict.$0.008 Solana210 ms2 payers92% up
  60. 95api.vextorium.com/saldo-multired-pagoOne address across five EVM chains (Base, Ethereum, Arbitrum, Optimism, Polygon): native coin and USDC balance per chain and total USD value.$0.008 Solana213 ms2 payers92% up
  61. 95www.x402pulse.dev/v1/health/hospitalsBest hospitals ranking for a U.S. state or city from Centers for Medicare & Medicaid Services (CMS) Care Compare data: ranked by CMS star rating, then net score (quality measures better than national minus worse across mortality, safety and readmissions). Filter by city, minimum stars, emergency services and hospital type (acute, critical access, children's, psychiatric). Not medical advice.$0.002 Base435 ms2 payers100% up
  62. 95agenticfinancegraph.com/check/livenessLiveness card: L0–L9 rank with the evidence behind it: bindings, first and last observed payment, float, delegation. No raw keys. About one ERC-8004 agent on Base, by Agentic Finance Graph. id = token id, slug or bound wallet; an agent never seen paying is a 404 before any payment.$0.01 Base623 ms2 payers100% up
  63. 95www.x402pulse.dev/v1/health/hospitalHospital scorecard for any U.S. Medicare hospital from the Centers for Medicare & Medicaid Services (CMS, the U.S. government agency): CMS overall star rating, type, ownership, emergency services, and how it compares with the national average on mortality, safety and readmissions (measures better, same, worse), plus its rank and percentile among rated hospitals in its state. Look up by CMS facility ID or name plus state. Not medical advice.$0.002 Base500 ms2 payers100% up
  64. 95www.x402pulse.dev/v1/health/drug-approvalsFDA drug approvals: which companies just won FDA approval for new drugs, generics or biologics, from Drugs@FDA. Approval date, sponsor company, NDA/ANDA/BLA type, brand and active ingredients, dosage form, review priority, and a flag for novel drugs (new molecular entities). Filter by company, days and original vs. supplemental approvals.$0.002 Base500 ms2 payers100% up
  65. 95www.x402pulse.dev/v1/health/safety-signalsDrug safety signal detection (pharmacovigilance) from FDA FAERS: side effects reported disproportionately often with a drug versus all other drugs, using the proportional reporting ratio (PRR) and chi-square with standard Evans criteria. A statistical prompt for study, not evidence of harm. Not medical advice.$0.003 Base424 ms2 payers100% up
  66. 95risk.yo.xyz/api/v1/agent/searchTargeted node lookup by asset address or protocol/asset name — the sole discovery path$0.001 Base359 ms2 payers100% up
  67. 95x402.asterpay.io/v1/agent/deep-analysis/batchDeep KYA Trust Score analysis for any AI agent or wallet. Returns 7-component trust score (0-100), risk tier, sanctions status, ERC-8004 identity, InsumerAPI attestations, and payment eligibility. The most comprehensive agent trust check available.$0.01 Base340 ms2 payers100% up
  68. 95swarm-agent.net/services/utilitiesUUIDs, hashes, base64, URL encoding, secure passwords and timestamp conversion. Deterministic, no inference, answers immediately. POST {"op":"uuid","n":2}. Use it when your agent needs a fresh UUID, hash, password or encoding and cannot run code itself.$0.02 Base651 ms2 payers100% up
  69. 95bob.assimilatethis.com/extractClean page extraction. Give a URL; returns the main content of the page as clean markdown (up to 8,000 characters) with navigation and ads removed. Typical response 2 to 5 seconds. If the page cannot be read you get an error and are not charged.$0.005 Solana341 ms2 payers100% up
  70. 95api.satledger.org/x402/provisionA satledger workspace and the units of recording you pay for, from 0.50 upward. One unit is one recorded event; an anchor costs 100. Exports and reads are free. Returns an API key on payment.$0.50 Base816 ms2 payers100% up
  71. 95toolvend.dev/url/inspectInspect a public URL: HEAD redirect trace, DNS A/AAAA observations and security headers in one report. At most 4 targets, no page body. Includes timestamps, partial-result warnings and factual findings; no safety or reputation verdict.$0.009 Solana558 ms2 payers100% up
  72. 95payto-preflight.hergertsynthora.com/servicex402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.001 USDC via x402 on Base. SYNTHORA.$0.01 Base686 ms2 payers100% up
  73. 95api.craigmbrown.com/v1/services/data.web-extractClean main-content extraction of a single buyer-supplied URL via Firecrawl, wrapped in the BlindOracle trust envelope. Thin extraction tool; no data inventory held. | BlindOracle by Craig M. Brown (craigmbrown.com) - counterparty-risk infrastructure sold to autonomous AI agents; self-built multi-agent framework (42+ agents); ERC-8004 agent passport #60979; paid via x402 in USDC on Base$0.05 Base579 ms2 payers100% up
  74. 95quotient-api-gateway.onrender.com/api/v1/sourcesThe news and X/Twitter evidence behind Quotient forecasts on Polymarket International, Polymarket US, Kalshi, and HL Outcomes: recent articles and relevant posts for up to ten markets, with reasoning, evidence quotes, source tiers, authors, and canonical routing. Prefer market_keys for cross-venue or nullable-slug rows. Use this to audit a forecast or see what is moving event and asset-linked markets.$0.005 Base506 ms2 payers100% up
  75. 95quotient-api-gateway.onrender.com/api/v1/assets/searchUse this to resolve companies, commodities, cryptoassets, and other underlyings by name, ticker, canonical key, UUID, platform identifier, or linked-market reference. Exact-reference results return every active directly linked non-price market (an Asset's price view is its price outlook) with quote provenance, Q's latest probability and paired thesis, and publication availability. Text results summarize those markets. Probabilities and theses remain tied to their exact questions.$0.01 Base509 ms2 payers100% up
  76. 95ot-intel-api.onrender.com/ot/gcc-bulletinRecurring public "State of OT Threat Intel — GCC" sitrep, human-reviewed before publish, sourced from the same intel.db pipeline as /ot/sitrep. Pass optional issue_date (YYYY-MM-DD) for a past edition; omit for the latest reviewed edition.$0.01 Base351 ms2 payers100% up
  77. 95app.heinrichstech.com/v1/cdp/whoisBitBooth Whois: pay 0.01 USDC, get the parsed whois record for any domain — registrar, creation/updated/expiry dates, name servers, status flags, plus the raw whois text. Two-hop resolution via whois.iana.org then the authoritative registry over TCP port 43. 5s per-connection timeout cap. Rejects IPv4/IPv6 inputs and blocks SSRF at the DNS layer. Built for agents auditing domain ownership, monitoring expiry, or pre-flighting a target.$0.01 Base378 ms2 payers100% up
  78. 95api.doseplot.com/v1/simulatePharmacokinetic simulation for one compound: walks the published model at one dose and cadence and returns the modelled serum curve over the requested horizon plus a 60-day washout tail. Deterministic math over published reference data -- not medical advice, not a prescription, and for relay to a human decision-maker rather than autonomous administration.$0.01 Base872 ms2 payers100% up
  79. 95api.doseplot.com/v1/recon/planReconstitution math for one vial and one target dose: the strength to reconstitute to, the bacteriostatic water to add, what one dose reads on a U-100 syringe, whole doses per vial, residual mass and cost per dose. Deterministic arithmetic -- not medical advice, not a prescription, and for relay to a human decision-maker rather than autonomous administration.$0.01 Base636 ms2 payers100% up
  80. 95agentdata-api.sander-van-aard.workers.dev/news/searchGoogle News search for AI agents at $0.010 per call, from the same Serper.dev source as /web/search. Send a query, get back compact JSON: top news results with position, title, url, snippet, publish date and source. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC on Base, no account, no API key.$0.01 Base307 ms2 payers100% up
  81. 95kronos.forgemesh.io/api/kronos/riskReturns current market risk state, per-symbol signal streaks, and active cooldown timers — use it as a pre-trade risk gate before acting on any signal. Typical agent tasks: check if BTC or ETH is in cooldown before a trading agent acts, confirm signal streak length for momentum context, gate an autonomous workflow on risk state, or add a safety check ahead of a decision call. Fresh continuously, USDC on Base mainnet via x402.$0.02 Base518 ms2 payers100% up
  82. 95api.aurenic.org/treasury/:seriesUS Treasury fiscal data: avg interest rates or debt$0.001 Base736 ms2 payers100% up
  83. 95x402-api.aubr.ai/api/literatureSearch and synthesize scientific literature on longevity and aging. Submit a research question; returns cited answer with references from PubMed and other sources.$0.03 Base428 ms2 payers100% up
  84. 95agent.connskill.com/v1/keywords-for-siteKeywords a website SHOULD target, derived from its content (Google Ads data)$0.05 Base646 ms2 payers100% up
  85. 95keyring-agent.blockchhub.link/api/add-poolPay the add-pool execution fee (add liquidity to a Uniswap V3 pool)$3.00 Base560 ms2 payers100% up
  86. 95x402-micro-tollgate.onrender.com/v1/fetch-mdFetch a public http(s) URL and return Markdown. Pay-per-call via x402 USDC.$0.001 Base459 ms2 payers100% up
  87. 95agent.connskill.com/v1/domain-rankOrganic visibility overview of a domain: keyword counts by position bucket plus estimated traffic$0.05 Base646 ms2 payers100% up
  88. 95runtime.rootlogos.com/v1/participationOffer one bounded contribution to Root Logos for constitutional evaluation and preservation. Current open call: https://rootlogos.com/agent-call.json. Payment grants no admission or authority.$0.05 Base427 ms2 payers100% up
  89. 95automaton.outlier.money/workReal-time crypto unusual-activity signal: coins with abnormal volume/price vs their own baseline, ranked, early-flagged, across the top 250 by market cap.$0.01 Base872 ms2 payers100% up
  90. 95skim402.com/api/v2/feeds/x402/latestSkim: x402 ecosystem feed — new services and price changes across the public x402 registries, as structured items. Refreshed on a 15-minute cycle (stale served if a registry is down); poll as often as you like.$0.005 Base402 ms2 payers100% up
  91. 95tensorfeed.ai/api/premium/ai-safety/incidents/exposureAI safety incident exposure analytics. Per-developer and per-deployer incident counts with recency-weighted exposure_score (1.0 last 30d, 0.5 days 31-90, 0.25 older), risk_domain and SEP-view (Security/Ethics/Performance) distributions, top affected artifacts. Derived over the AVID (avidml/avid-db, MIT) snapshot refreshed daily. The "which AI vendors have the most recent reported safety incidents" call.$0.02 Base356 ms2 payers100% up
  92. 95tensorfeed.ai/api/premium/research/milestonesLast 30 days of arXiv preprints flagged as milestone candidates by an offline Qwen 3.6 27B per-paper extraction pass. Each paper carries structured reasoning naming the benchmark + quantified delta, model release, or novel architecture justification. Conservative; false positives are worse than false negatives.$0.02 Base786 ms2 payers100% up
  93. 95palmyr.ai/domains/coghill.xyz/dnsPalmyr: POST /domains/coghill.xyz/dns$0.01 Solana659 ms2 payers100% up
  94. 95chain.openverbs.com/v1/btc-mempoolLive snapshot of the Bitcoin mempool: number of unconfirmed transactions, total pending virtual size (bytes and MB), the current backlog in blocks, total fees pending (sats and BTC), the fee-rate histogram, and the current chain tip height. Lets an agent gauge network congestion and time a transaction.$0.006 Base45 ms2 payers97% up
  95. 95chain.openverbs.com/v1/btc-feesLive recommended Bitcoin transaction fee rates (in sat/vB) for next-block, ~30-minute, ~1-hour, economy and minimum confirmation targets, straight from the mempool. Also estimates the total fee (in sats and BTC) for a transaction of the given virtual size, so an agent can pick a fee tier and know the cost before broadcasting.$0.006 Base67 ms2 payers97% up
  96. 95trade.chainverdict.xyz/v1/imo/validateValidate an IMO ship identification number check digit.$0.004 Base369 ms2 payers100% up
  97. 95rng.sociologic.ai/diceRoll a die with configurable number of sides (2-1000)$0.02 Base713 ms2 payers100% up
  98. 95k-data-x402-production.theblack1022.workers.dev/api/research/latestLatest Korean brokerage equity research across all covered companies, newest first — company and KRX ticker, target price, rating, brokerage, analyst, and a one-line English summary of each report. Facts and summaries only; the report PDF stays with its publisher and source_url links back to it. Optional ?limit=20 (max 50).$0.02 Base461 ms2 payers100% up
  99. 95trust.nsgoods.org/agent-trustCross-chain ERC-8004 trust score for one (chain, agent) pair — signed JSON with transparent component breakdown (value_avg / client_breadth / volume / recency), per-chain context, and methodology link. USDC pay-per-call on Base mainnet.$0.005 Base568 ms2 payers100% up
  100. 95imagegen.coinopai.com/generate/cleanGenerate an AI image from a text prompt with the background automatically removed into a transparent PNG cutout (FLUX Schnell). Use it to create product photos, sticker designs, logo marks, or transparent assets for e-commerce listings and automated design pipelines — text-to-image plus background removal in one paid API call, no API key or image-editing step required.$0.35 Base561 ms2 payers100% up