x402watch

21,789 paid endpoints are listed. 20,776 answered a real 402 at the last check.

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

Last check 2026-10-01 22:50 UTC · 21,789 probed

20,776 answering 402479 down406 rejecting128 no paywall2,402 price drift
  1. 98flat-rate-llm.kikoribera03.workers.dev/v1/util/phoneChecks one phone number offline: normalises it to E.164, works out its country (including the twelve calling codes shared by several countries, such as +1 US/Canada/Caribbean) and validates the national number length against that country's numbering plan. Returns the tel: URI and the national dialling form. Numbering data from Google's libphonenumber. No network call and no API key, so it cannot fail because a third party is down.$0.005 Base26 ms2 payers97% up
  2. 98flat-rate-llm.kikoribera03.workers.dev/v1/evm/txFull transaction details by hash, merged with its receipt: from, to, value, gas used, status and block. One call instead of two. Via eth_getTransactionByHash.$0.005 Base70 ms2 payers97% up
  3. 98agent.pocket.network/v1/tx-explainExplains an EVM transaction in plain language: decoded intent, asset movements, approvals, and risk flags. POST /v1/tool with {tx_hash, chain_id}, or GET /v1/explain with query params, and get one JSON object with a summary, moved assets, gas, parties, and risk flags. Deterministic for identical input. Pay per request in USDC; no account, no API key.$0.005 Base141 ms2 payers97% up
  4. 98hubvibe-io.com/work/research/briefSummarize and analyze a web page: the URL is rendered in a real browser, its content extracted, and a written brief answering your question returned, grounded in that page only and saying so when the page does not answer. Use it for competitor pages, docs, articles and listings. Input: url; optional question. Fixed JSON fields: research.page_facts. Needs a web search: research.web.$5.00 Base77 ms2 payers97% up
  5. 98hubvibe-io.com/work/llm/generateLLM text generation / chat completion: a raw completion from your prompt with optional system message, max_tokens and temperature; Gemini by default, other configured models by provider and model. Use it for drafting, rewriting, translation, classification or any prompt, paid per call with no API key or account. Input: prompt. Answer grounded in your own text: llm.analyze.$0.25 Base65 ms2 payers97% up
  6. 98clinkagent.com/pdf/textConvert PDF to text for AI agents - pass any public PDF URL, get the full extracted plain text in one call. pdftotext / convertpdftotext / pdf to text converter / extract text from PDF / read a PDF / parse PDF documents, papers, SEC filings, reports, invoices, manuals. Up to 25MB and 500k chars, with page count and a likely_scanned flag (text-based PDFs only, no OCR). No API key, no account. ?url=<public PDF url>. Free live sample: /pdf/example.$0.01 Base297 ms2 payers97% up
  7. 98clinkagent.com/pm/oddsWhat do the prediction markets say? Pass a question, get a finished read an agent can use directly: the best-matching market on Polymarket and on Kalshi with implied probability and 24h/7d moves, the cross-platform gap in points, a 7-day price history, a one-sentence summary, plus the top matching markets. Forecasting, research grounding, news context, event risk. ?q=<question>. Raw list only: /pm/search $0.01.$0.02 Base188 ms2 payers97% up
  8. 98clinkagent.com/x/digestX/Twitter trend digest - live tweet search PLUS an AI-written summary an agent can use directly: 3-5 sentence trend summary, sentiment (positive/negative/mixed/neutral) with reason, key themes, driving accounts, notable post URLs. Raw tweets included. Advanced search syntax: from:user, #hashtags, min_faves, since dates, lang. Social media monitoring, crypto, stocks, news sentiment, brand tracking, market signals. ?query=<advanced search>. Raw-only tier: /x/search $0.02.$0.05 Base107 ms2 payers97% up
  9. 98x402.agentutility.ai/weatherCurrent conditions and forecast for any latitude/longitude. Returns present weather plus a 1-7 day daily forecast (temp max/min, precipitation, sunrise/sunset, UV index) and an optional hourly forecast. A simple weather API on the Open-Meteo backend.$0.002 Base26 ms2 payers97% up
  10. 98x402.agentutility.ai/astro-timesSunrise sunset times. Computes sunrise, sunset, solar noon, day length (seconds), and civil / nautical / astronomical twilight begin & end for any latitude/longitude on any date. Also covers golden hour, dawn / dusk, and full astronomy-times. UTC ISO8601 strings. Wraps sunrise-sunset.org's public API — no auth, commercial-OK.$0.005 Base34 ms2 payers97% up
  11. 98api.agentstools.dev/tax/bracketsReference tables for a US tax year and filing status: income brackets, standard deduction, FICA constants, and capital-gains breakpoints. Pure lookup, not tax advice.$0.002 Base184 ms2 payers97% up
  12. 98intel.rallylive.ca/site/phone-numbersPhone number extraction from a page: candidate numbers found in the text and tel: links, normalised, with the tel-link ones marked as high confidence. Contact discovery for lead lists. $0.01 per page.$0.01 Base74 ms2 payers97% up
  13. 98intel.rallylive.ca/data/json-validateJSON validator and formatter: parses the text, reports the error with position if invalid, otherwise returns pretty-printed and minified versions, the top-level type, key count, depth and size. Fix agent-generated JSON fast. $0.01 per call.$0.01 Base93 ms2 payers97% up
  14. 98intel.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 Base289 ms2 payers97% up
  15. 98intel.rallylive.ca/monitor/robots-allowedIs a URL crawlable? Fetches the site's robots.txt and evaluates the given path for a specific user-agent (Googlebot, GPTBot, ClaudeBot, Bingbot or any token; default *), returning allowed/disallowed, the matching rule, the group used, crawl-delay and declared sitemaps. Pre-flight for crawlers and SEO checks. $0.01 per check.$0.01 Base266 ms2 payers97% up
  16. 98api.craigmbrown.com/v1/services/security.process-attestationBlindOracle 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 | Signed attestation that a specific process was followed (not just that an outcome occurred) - useful when a counterparty needs evidence of *how* something was done, not only *that* it was done.$0.25 Basedown2 payers97% up
  17. 98intel.rallylive.ca/site/corsCORS check for a URL: sends a request with an Origin (and a preflight OPTIONS) and reports Access-Control-Allow-Origin/Methods/Headers/Credentials, whether the origin is allowed, wildcard use, and the risky combination of wildcard with credentials. Integration and security testing. $0.01 per check.$0.01 Base26 ms2 payers97% up
  18. 98intel.rallylive.ca/dev/github-languagesLanguage breakdown of a GitHub repository: bytes and percentage per language sorted by share, primary language, total bytes, language count, plus repo size and default branch. Tech-stack detection for due diligence and tooling decisions. $0.01 per repo.$0.01 Base26 ms2 payers97% up
  19. 98market.datapackvibe.com/x402/paletteThemed colour palette: A harmonious colour palette for a theme (medieval, forest, desert, ice, lava, night, candy, random), sorted dark to light. Returns hex codes plus a PNG swatch.$0.01 Base175 ms2 payers96% up
  20. 98market.datapackvibe.com/x402/fantasy-namesMedieval-fantasy names: Original names for towns, kingdoms, characters, taverns and legendary items. Duplicates are removed. Useful for games, stories and world-building.$0.01 Base165 ms2 payers96% up
  21. 98market.datapackvibe.com/x402/effective-health-calculatorEffective health calculator: Calculate effective HP from base health and damage reduction.$0.01 Base230 ms2 payers96% up
  22. 98market.datapackvibe.com/x402/dps-calculatorDamage per second calculator: Estimate sustained DPS from hit damage, attacks per second, and hit chance.$0.01 Base181 ms2 payers96% up
  23. 98market.datapackvibe.com/x402/critical-damage-calculatorExpected critical damage: Calculate expected damage from crit chance and critical multiplier.$0.01 Base208 ms2 payers96% up
  24. 98market.datapackvibe.com/x402/armor-mitigation-calculatorArmor mitigation calculator: Estimate post-armor damage using a configurable mitigation curve.$0.01 Base211 ms2 payers96% up
  25. 98vendsdk.com/api/v/bundle-infraSingle payment bundle: DNS A/AAAA, HTTP HEAD probe, and TLS certificate peek for agent infra workflows$0.01 Base118 ms2 payers97% up
  26. 98clink-lithium-vault.fly.dev/pdf/textConvert PDF to text for AI agents - pass any public PDF URL, get the full extracted plain text in one call. pdftotext / convertpdftotext / pdf to text converter / extract text from PDF / read a PDF / parse PDF documents, papers, SEC filings, reports, invoices, manuals. Up to 25MB and 500k chars, with page count and a likely_scanned flag (text-based PDFs only, no OCR). No API key, no account. ?url=<public PDF url>. Free live sample: /pdf/example.$0.01 Base92 ms2 payers97% up
  27. 98clink-lithium-vault.fly.dev/sec/insiderSEC Form 4 insider trading for one US stock ticker, for trading agents (Coinbase for Agents / x402 market data). Every insider buy/sell/grant/gift in the window: name, role, date, transaction code, shares, price, shares owned after, filing url, plus open-market buy vs sell counts and dollar totals. Facts only - not a signal. Source: SEC EDGAR. ?ticker=AAPL&days=1-365 (default 90)&limit=1-25.$0.01 Base98 ms2 payers97% up
  28. 98clink-lithium-vault.fly.dev/pm/ticker-eventsOpen prediction markets mentioning a US stock ticker or company, Polymarket + Kalshi in one call, for trading agents (Coinbase for Agents / x402 market data). $CASHTAG or company name in, implied probability, 24h change, volume, close date and url out. Facts only - not a buy/sell/hold signal. ?q=TSLA or ?q=Tesla&limit=1-50.$0.01 Base87 ms2 payers97% up
  29. 98clink-lithium-vault.fly.dev/pm/searchPrediction market search for AI agents - one query, live markets from Polymarket AND Kalshi ranked by relevance: question, implied probability (YES price), 24h/7d change, bid/ask, volume, liquidity, close date, URL, and the ids you need for /pm/history. Election odds, Fed/rates, crypto price targets, sports, geopolitics, pop culture. ?q=<question or topic>&limit=<1-50>. Want a finished answer with a cross-platform read? /pm/odds $0.02.$0.01 Base102 ms2 payers97% up
  30. 98clink-lithium-vault.fly.dev/market/serviceTrack one agent service over time - the full day-by-day history of any x402 listing or MCP server: price changes, paying customers, call volume, installs, first and last seen. See what a listing like yours earns, watch a competitor grow or die. From daily whole-market snapshots the live catalogs don't keep. ?id=<x402 resource URL or MCP registry name> (find ids via /find, free). Market overview: /market/pulse $0.005.$0.005 Base175 ms2 payers97% up
  31. 98api.x-402.online/v1/web/changedTell whether a page changed since the last time you read it. Has a page changed since you last read it? Send a URL and the content_sha256 you kept from a previous call; get back changed: true or false, the current checksum and the current length. Without a checksum, returns the starting point. Main content only, navigat…$0.005 Base158 ms2 payers96% up
  32. 98api.x-402.online/v1/email/verifyCheck whether an email address is well-formed and its domain can receive mail, before you send. Five DNS checks on an email address, no message sent: syntax, MX presence and hosts, SPF record, DMARC policy, disposable domain, role address. Returns deliverable as NO, RISKY or LIKELY. It does not open an SMTP session and says so: mailbox existence is explicitly not c…$0.005 Base117 ms2 payers96% up
  33. 98api.x-402.online/v1/chain/tokenGet an ERC-20's name, symbol, decimals, total supply, holder count and USD rate in one call. An ERC-20 on Base in one call: name, symbol, decimals, total supply, holder count, contract type and USD rate when Blockscout knows it. Query: ?address=0x…$0.005 Base279 ms2 payers96% up
  34. 98minia2a.uk/x402/x402-publish-1790058399583-adversarial-claim-veminia2a service: x402-publish-1790058399583-adversarial-claim-ve$0.01 Base164 ms2 payers96% up
  35. 98minia2a.uk/x402/x402-accessibility-checkminia2a service: x402-accessibility-check$0.01 Base159 ms2 payers97% up
  36. 98minia2a.uk/x402/rSquaredminia2a service: x402-r-squared$0.01 Base155 ms2 payers97% up
  37. 98minia2a.uk/x402/number-humanizeminia2a service: x402-number-humanize$0.01 Base153 ms2 payers97% up
  38. 98minia2a.uk/x402/fee-historyminia2a service: x402-fee-history$0.01 Base153 ms2 payers97% up
  39. 98minia2a.uk/x402/cashConversionCycleminia2a service: x402-cash-conversion-cycle$0.01 Base156 ms2 payers97% up
  40. 98minia2a.uk/x402/answer-scoreminia2a service: x402-answer-score$0.01 Base154 ms2 payers97% up
  41. 98api.govparse.io/v1/patents/assignees/searchWhich companies are new to patenting, and in what technology? Search patent assignee ORGANIZATIONS (entity-resolved), each with first/last grant date, patent count, distinct CPC subclasses, and inventor count. new_assignee=true isolates orgs with their first-ever US patent grant (emerging/stealth signal for VC deal sourcing and corp-dev); narrow by CPC subclass, state/country, first-grant window, or patent_count_min. PatentsView grants (CC BY 4.0), observational.$1.25 Base296 ms2 payers97% up
  42. 98readx.sh/api/:name/followersA user's followers (~200 per page; paginate with cursor until has_more is false). Example: GET /api/jack/followers$0.01 Base47 ms1 payers96% up
  43. 98api.kakerapetit.dev/v1/verify-reference-imageVerify that an image matches a reference image. Compares a candidate image URL against a trusted reference and returns whether they show the same content. Use for verifying logos, profile pictures, KYC document photos, or that an uploaded image matches an expected original.$0.005 Base250 ms1 payers97% up
  44. 98api.telemost.io/v1/data/sentiment/llmTelegram sentiment analysis, LLM verdict: sentiment label, score, trend and a short summary for a channel, group or topic. Gauge audience mood or brand perception before acting.$0.1865 Base286 ms1 payers97% up
  45. 98api.solenrich.com/entrypoints/trending-signals/invokeComposes token-discovery + whale-watch + risk scoring across DexScreener trending. Returns a composite-signal ranked list (liquidity, risk, concentration, whale flow) with per-token reasoning and overall sentiment (accumulation/distribution/mixed). "What's worth paying attention to right now?"$0.05 Solana96 ms1 payers97% up
  46. 98api.solenrich.com/entrypoints/batch-enrich/invokeParallel enrichment of 1-25 wallets or tokens in a single call.$0.015 Solana103 ms1 payers97% up
  47. 98api.telemost.io/v1/stats/channelTelegram channel analytics and statistics: subscribers and growth, average post views, reach, engagement and engagement rate (ERR/ERR24), plus mentions and forwards. A quick stats and health check of any public channel; individual metrics are populated where the channel exposes them.$0.0165 Base174 ms1 payers97% up
  48. 98scvd.store/api/buy/graffiti_on_a_trainGraffiti on a Train. REQUIRES ?tag= on the paid request — a signed request without it is refused before the gate and no money moves. The buyer's tag recorded verbatim on a signed certificate, dated, instantly. Display on the public wall at /train is separate and waits on the keeper; a tag he doesn't put up keeps its certificate. Amounts above the minimum record as tips. Full listing: https://scvd.store/menu/graffiti_on_a_train. MCP tool: buy_graffiti_on_a_train.$1.00 Base58 ms1 payers97% up
  49. 98arbipulse.theaslangroupllc.com/api/dexCross-pool and cross-chain DEX price arbitrage, with flash-loan execution paths. For DeFi and MEV agents.$0.10 Base106 ms1 payers97% up
  50. 98mudko.com/api/x402/batch-scanBulk agent-readiness screening for agencies, VCs and portfolio owners: scan up to 50 URLs in one paid call ($0.02/URL, $0.10 minimum) and get a compact per-URL verdict — level 0-5, passing checks, top gaps. The single-URL scan with full evidence stays free at /api/x402/deep-scan; this buys scale and rate-limit bypass.$0.10 Base97 ms1 payers97% up
  51. 98mudko.com/api/x402/verify-counterpartyCounterparty trust verification for agents: before transacting with a domain, verify its trust artifacts — DNSSEC + DNS-AID records, agent-card, live MCP endpoint, published JWKS, OASF record, x402/commerce declarations. Returns a 0-100 trust score with per-artifact evidence. $0.25 per lookup.$0.25 Base103 ms1 payers97% up
  52. 98mudko.com/api/x402/citation-checkLive AI-citation check: runs fresh probes against major AI assistants and reports whether a domain is cited for its vertical's buying questions — citation rate per provider, list position, and whether the domain's agent-card was discovered. Fresh probes per call (not cached). $0.50 per check. Free companion diagnosis: /api/x402/deep-scan.$0.50 Base94 ms1 payers97% up
  53. 98api.brazilayer.com/v1/desmatamento/municipio/:ibgeDeforestation profile of a Brazilian municipality by IBGE code, from the official INPE satellite alert system (DETER, Amazon and Cerrado): area cleared and alert count since 31 Dec 2020 — the EUDR cutoff date — plus 30/90/365-day windows, breakdown by class (clear-cut, degradation, mining) and rank among affected municipalities. The origin-risk layer for coffee, soy, beef, cocoa entering the EU. Free sample, no payment: https://api.brazilayer.com/v1/desmatamento/amostra$0.01 Base158 ms1 payers97% up
  54. 98readx.sh/api/:name/followingAccounts a user follows (~200 per page; paginate with cursor until has_more is false). Example: GET /api/jack/following$0.01 Base25 ms1 payers97% up
  55. 98app.tenna.ai/api/x402/tenna/tenna_observatory_round_previewLatest Sealed BTC Forecast. Latest sealed five-minute LUMI, TENNA, and consensus forecast from TENNA Observatory, including English commentary, recent accuracy, and eligible live edge-node consensus. Reuses existing app.tenna.ai output with no extra AI call. Eligible external wallets may receive one zero-budget preview per UTC day; 0.01 USDC is the fallback rate because ACP cannot list a zero price. Experimental forecast with no demonstrated edge.$0.01 Base203 ms1 payers97% up
  56. 98hubvibe-io.com/work/video/generateAI video generation / text to video: a short clip from a text prompt with Google Veo, returned as base64 video bytes (or a GCS URI when large) with its MIME type, optionally with generated audio. Input: prompt; optional aspect_ratio (16:9 or 9:16), duration_seconds (4, 6 or 8), generate_audio.$10.00 Base64 ms1 payers97% up
  57. 98hubvibe-io.com/work/security/mcp_inspectMCP server security scan: probe any MCP endpoint's initialize handshake and tools/list and report whether it requires authentication, which protocol version it speaks, how many tools it exposes and which are not marked read-only. Use it before connecting an agent to an unknown MCP server. Input: url of the MCP endpoint.$5.00 Base53 ms1 payers97% up
  58. 98hubvibe-io.com/work/research/companyCompany research report: what a company does, its products and anything notable, from the live web (official site and Wikipedia first) and recent GDELT news, every claim cited to a numbered source, thin or conflicting evidence disclosed. Use it for due diligence, sales prep and competitor research. Input: company name; optional max_sources. Structured firmographics in one cheap call: company.enrich.$10.00 Base63 ms1 payers97% up
  59. 98hubvibe-io.com/work/verify/claimsFact check claims against sources: up to 10 claims checked against up to 4 source URLs you name; each comes back SUPPORTED, CONTRADICTED or UNSUPPORTED with the exact quote the verdict rests on. Use it to verify AI output, citations or statements before publishing. Input: claims[], sources[]. A question but no sources yet: research.web.$5.00 Base70 ms1 payers97% up
  60. 98hubvibe-io.com/work/data/anomaliesAnomaly detection on a time series: score recent periods against history with BigQuery AI.DETECT_ANOMALIES (TimesFM). Give one table and its latest periods are scored against its own history, or a history and a target table. Returns every checked row with bounds, anomaly flag and probability, plus the anomaly count. Input: history_table, target_table, timestamp_col, data_col; optional target_last, threshold, id_cols.$10.00 Base78 ms1 payers97% up
  61. 98hubvibe-io.com/work/data/forecastTime-series forecasting: forecast any BigQuery table with Google's pretrained TimesFM model (AI.FORECAST), nothing to train. Point it at the table, timestamp column and value column and get forecast rows with bounds for the horizon you set, per series with id_cols. Use it for sales, traffic, demand or metric forecasts. Input: table, timestamp_col, data_col; optional horizon, id_cols.$10.00 Base247 ms1 payers97% up
  62. 98hubvibe-io.com/work/market/intelCrypto market sentiment in one call: live Coinbase spot price, live Polymarket probabilities and recent news headlines (GDELT) on the same subject, analysed together in a written summary that says what the numbers do and do not support. Use it for a quick read on Bitcoin, Ethereum or any coin. Input: optional product_id (BTC-USD...), query, question, limit. Market data only, not investment advice.$5.00 Base76 ms1 payers97% up
  63. 98hubvibe-io.com/work/data/questionAsk a database in plain English (text to SQL): any BigQuery table, including Google's public datasets. The SQL is written for you, run under a byte ceiling, and the rows are read back into a written answer, returned with the SQL, columns and rows it used. Use it for analytics questions without writing SQL. Input: question, table; optional columns.$5.00 Base65 ms1 payers97% up
  64. 98hubvibe-io.com/work/monitor/snapshotWebsite change monitoring, step one: fetch a page and store it as the baseline to compare against later. Use it to watch pricing pages, terms, job boards or competitors. Input: url. Then call monitor.check to learn whether and how it changed.$0.50 Base76 ms1 payers97% up
  65. 98hubvibe-io.com/work/research/webDeep web research with citations: search the live web for your question, read the top sources in full, and get a written answer with every claim tied to a numbered source. Use it when an agent needs a sourced answer, not a list of links. Input: question; optional max_sources. Quick answer with links: search.web.$5.00 Base64 ms1 payers97% up
  66. 98hubvibe-io.com/work/image/generateAI image generation / text to image: one image from a text prompt with Google Imagen 4, returned as base64 image bytes with its MIME type. Use it for illustrations, thumbnails, product mockups and social images. Input: prompt; optional aspect_ratio.$0.50 Base73 ms1 payers97% up
  67. 98hubvibe-io.com/work/code/executeRun Python code in a sandbox: execute Python in Google's hosted sandbox (not on this service's machines) and get the code, its printed output and the outcome back. Use it for calculations, data transforms and checks an agent should not do in its head. Input: code. Questions over BigQuery data: data.query.$0.25 Base69 ms1 payers97% up
  68. 98hubvibe-io.com/work/research/page_factsStructured facts from a web page / scrape to JSON: name the fields you need (pricing, plans, contact, product names, anything) and get exactly those keys back as JSON from the live page rendered in a real browser, null where the page does not say. Use it for price monitoring, lead data and catalog extraction. Input: url, fields[].$5.00 Base76 ms1 payers97% up
  69. 98hubvibe-io.com/work/data/queryBigQuery SQL: run a read-only SQL query, including against Google's public datasets (Wikipedia, GitHub, blockchains, weather, census and more), and get columns and rows back as JSON with the bytes processed. Every query is dry-run first and refused above the scan ceiling, so cost is bounded before it runs. Input: sql; optional max_scan_gib. Ask in plain English instead: data.question.$0.50 Base65 ms1 payers97% up
  70. 98hubvibe-io.com/work/prediction/eventsTop prediction market events: Polymarket events (groups of related markets) ranked by trading volume, with title, slug, end date and market count. Use it to see what the biggest prediction markets are right now. Input: optional limit.$0.05 Base79 ms1 payers97% up
  71. 98hubvibe-io.com/work/market/tickerCrypto ticker / bid and ask: live best bid, best ask, last price and volume for one Coinbase product from Coinbase's Exchange data host, an independent second source to market.quote. Input: product_id such as BTC-USD.$0.02 Base77 ms1 payers97% up
  72. 98hubvibe-io.com/work/market/ratesExchange rates / currency conversion table: Coinbase's full rate table for one base currency against every crypto and fiat currency it quotes (USD to BTC, ETH, EUR, GBP, JPY...). Use it to convert amounts between currencies. Input: currency code such as USD.$0.02 Base76 ms1 payers97% up
  73. 98hubvibe-io.com/work/speech/synthesizeText to speech (TTS): convert text to natural spoken MP3 audio with Google Cloud Text-to-Speech, returned as base64. Use it for voice replies, narration, audio versions of text and accessibility. Input: text; optional voice name.$0.25 Base75 ms1 payers97% up
  74. 98horizonpulse.dev/api/pulseBTC/ETH/SOL spot prices with momentum, overall sentiment, and signal from CoinGecko$0.005 Base125 ms1 payers97% up
  75. 98dev.intel.rallylive.ca/dev/rfc/6454RFC 6454: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text versions, from rfc-editor.org. One RFC, one call, for protocol work. $0.01 per call.$0.01 Base267 ms1 payers97% up
  76. 98data.intel.rallylive.ca/data/timezone/london-ontarioLocal time and time zone for London Ontario right now: IANA zone name, UTC offset, whether daylight saving is in effect and when it next changes, and the current local date-time. Meeting scheduling across zones without an API key. $0.01 per call.$0.01 Base32 ms1 payers97% up
  77. 98dev.intel.rallylive.ca/dev/pypi/aiohttpPyPI project aiohttp: latest version, summary, license, requires-python, homepage/repository, release date and available wheels from the PyPI JSON API. Pin, audit or compare aiohttp in one call, no token. $0.01 per call.$0.01 Base28 ms1 payers97% up
  78. 98flat-rate-llm.kikoribera03.workers.dev/v2/inferenciaLLM inference at a flat $1.00 per call, with no account, no API key and no token metering. POST a prompt, get the completion: the same price for 10 tokens or 4000, while metered gateways scale with usage. Automatic failover across several large models; typical response under 1s. Pay per call in USDC over x402 - nothing to sign up for.$1.00 Basedown1 payers97% up
  79. 98zayguard.onrender.com/v1/assessmentsAgent-facing assessment intelligence: pay $0.05 USDC through x402 for a read-only Base transaction result.$0.05 Base178 ms1 payers97% up
  80. 98goodsong.dev/verify/drugVerify an FDA drug record: given a claim_type (approval, ndc, or recall) and its identifier, does that record actually exist, and does the given name match the canonical record? Checked against openFDA. Catches a fabricated or misattributed drug approval, NDC listing, or recall citation. Existence/status only, not medical advice.$0.005 Base207 ms1 payers97% up
  81. 98cryptyx.ai/api/asset/thesis-journalPer-day composite conviction trajectory for one asset over 7-90 days. Score timeline always complete; optional narrative one-liner overlay from the daily thesis job. Track conviction evolution before a major move. Coverage: pass any asset in the CRYPTYX 200+ tracked universe (BTC, ETH, SOL, top-cap + long-tail).$0.05 Base202 ms1 payers97% up
  82. 98cryptyx.ai/api/metrics/slicer/scanCross-sectional z-score scanner across 200+ assets and 440+ metrics. Pick a metric and threshold; get ranked triggering assets with z, percentile, returns, composite score, and per-metric health grading. Live anomaly hunting.$0.05 Base141 ms1 payers97% up
  83. 98cryptyx.ai/api/metrics/slicerSingle-metric z-score backtest over 5+ years of history per asset. Triggers, trigger rate, and per-horizon forward-return and max-drawdown stats across 8 horizons (1d-365d). Pre-composite single-factor edge testing. Coverage: pass any asset in the CRYPTYX 200+ tracked universe (BTC, ETH, SOL, top-cap + long-tail).$0.05 Base149 ms1 payers97% up
  84. 98cryptyx.ai/api/market-pulse/factor-cross-sectionFactor term-structure grid — 7 classes by 8 horizons of market-average t-score with breadth counts and 1-day momentum delta. Per-asset mode adds delta-vs-market per cell. Read rotation in one matrix. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.$0.05 Base181 ms1 payers97% up
  85. 98cryptyx.ai/api/taker-flowDaily taker buy/sell USD and buy/sell ratio per asset, split into spot and futures arrays, last N days. Raw tape for custom flow models. Coverage: pass any asset in the CRYPTYX 200+ tracked universe (BTC, ETH, SOL, top-cap + long-tail).$0.01 Base230 ms1 payers97% up
  86. 98cryptyx.ai/api/signals/leaderboardSignal activity leaderboard over 7-365 days — per-signal trigger frequency, average confidence, assets triggered, and a per-horizon walk-forward IC/reliability block. Frequency and robustness in one pass. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.$0.01 Base244 ms1 payers97% up
  87. 98x402.ottoai.services/transaction-historyTrade and transaction history for a user's Otto AI Safe account — swaps, bridges, deposits, withdrawals with timestamps and explorer links.$0.001 Base191 ms1 payers97% up
  88. 98library.intel.rallylive.ca/library/audiobooks/subject/americansFree audiobooks on "Americans": public-domain recordings (LibriVox and Internet Archive audio) whose subject tags match, with runtime, language and mp3 links, most downloaded first. Add words to narrow. $0.01 per page of 20.$0.01 Base74 ms1 payers97% up
  89. 98site.intel.rallylive.ca/site/file/well-known-apple-app-site-associationDoes https://<domain>/.well-known/apple-app-site-association exist? Requests the path and returns the HTTP status, content type, size and the first 300 characters when it is text. Presence of .well-known/apple-app-site-association tells you about the site's tooling and policies. $0.01 per check.$0.01 Base296 ms1 payers97% up
  90. 98places.openverbs.com/v1/place-detailsLook up a business's full Google Business Profile by name and location. Returns name, category, star rating and review count, address, phone, website, opening hours by day, Google place_id and CID, coordinates and claimed status. For place enrichment, store-hours and business lookups. Unknown business returns found=false.$0.02 Basedown1 payers97% up
  91. 98x402.agentutility.ai/scrape-websiteScrapes any webpage and pulls title, description, canonical URL, OpenGraph + Twitter card metadata, headings, and outbound links from a single URL. Server-side rendering; body content rendered as text, raw HTML, or clean markdown, with optional link extraction. Cheerio-based with no headless browser, so it is fast and cheap, ideal for static pages and SSR sites. For JS-heavy SPAs that need a real browser, see website-screenshot. Use it as a web scraping API or webpage metadata extractor.$0.04 Base70 ms1 payers97% up
  92. 98api.socialfetch.dev/v1/facebook/ad-library/companies/searchSearch Facebook Ad Library companies / advertisers by name.$0.014 Base297 ms1 payers97% up
  93. 98eltociear-tokenguard.hf.space/cexCentralised-exchange metrics: reported volume, pairs and traffic per venue.$0.02 Base213 ms1 payers97% up
  94. 98eltociear-tokenguard.hf.space/web/searchWhat does the open web say about this query? Ranked title/url/snippet results for agents, served through an automatic multi-engine failover chain so a single call still answers when any one backend is blocked, rate-limited or timing out from a datacenter IP$0.05 Base237 ms1 payers97% up
  95. 98ostland.halowerk.com/v1/bg-max-slopeMaximum adjacent-cell surface gradient across the analysis grid. The coordinate is validated against the Natural Earth boundary for Bulgaria; results outside it are rejected before payment.$0.001 Basedown1 payers97% up
  96. 98nordland.halowerk.com/v1/fi-soil-nitrogenMean SoilGrids total nitrogen for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Finland; results outside it are rejected before payment.$0.001 Basedown1 payers97% up
  97. 98nordland.halowerk.com/v1/fi-soil-clayMean SoilGrids clay fraction for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Finland; results outside it are rejected before payment.$0.001 Basedown1 payers97% up
  98. 98x402.agentutility.ai/seo-snapshotAudits a page's on-page SEO in one call: head metadata, link profile, and keyword ideas. Give it a URL and get back head metadata (title, description, canonical, OG/Twitter cards), the internal/external link breakdown, and ranked keyword suggestions seeded from your seed_keyword or the page's own title. One paid call replaces three: ideal for content-gap analysis, SEO audits, competitor page reviews, programmatic SEO pipelines. Composite: one call runs url-metadata-extract + link-extract in parallel, then keyword-suggest seeded from the page title. Use it as an SEO research API for agents.$0.04 Base27 ms1 payers97% up
  99. 98x402.agentutility.ai/amortization-scheduleComputes a loan's amortization schedule and payment breakdown. Same backend as loan-amortization-calculator, focused on scheduled payment, payoff months, total paid, and interest saved. Use it as an amortization schedule API, loan payment schedule, or debt amortization calculator.$0.01 Base27 ms1 payers97% up
  100. 98x402.agentutility.ai/find-productsFind products API (alias of product-search). Returns ranked product results with buy links, retailer, snippet, and detected price for a shopping query. Backed by Decodo Google search scoped to buy intent.$0.02 Base30 ms1 payers97% up