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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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- Paid calls · 30 days
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4,372 results- YYouTube Transcript & CaptionsImages, audio & video
Full transcript of any YouTube video by video id or URL: captions/subtitles as clean plain text plus timestamped segments, the video's chapter markers, and every caption track it offers so an agent can pick a language and re-fetch. YouTube transcript, video to text, captions extraction, subtitle download, closed captions, speech to text, multilingual, asr and authored tracks. No API key.
BasePolygonArbitrum+1youtube.use.x402atlas.comfrom $0.021 endpoint - Xx402-v2-mint-url-to-markdown.vercel.appOther services
Fetch one public HTML page → Markdown. robots.txt + SSRF guard + 1 MB / 5 s caps (amp port). Refusals 400 charged:false; fetch failures 502.
Basex402-v2-mint-url-to-markdown.vercel.appfrom $0.0031 endpoint - Xx402-v2-mint-markdown-structure.vercel.appOther services
Parse markdown: outline, frontmatter, tables, fences, links, lists. Optional polite URL fetch.
Basex402-v2-mint-markdown-structure.vercel.appfrom $0.0031 endpoint - Xx402-demo-discovery-endpoint.vercel.appOther services
Demo endpoint for x402 resource discovery
Basex402-demo-discovery-endpoint.vercel.appfrom $0.0011 endpoint - GGet Wikidata entitySearch & web
Fetch a Wikidata entity by Q-id: label, description, aliases and its claims (property → values).
Basewikidata.openverbs.comfrom $0.0062 endpoints - Vvealth.netOther services
Work tCO2e Accounting (CDP-settled mirror) — ecological accounting guidance from the production settle-to-retire mapping for a work type. NOT a credit, NOT a retirement.
Basevealth.netfrom $0.0051 endpoint - Uutilsforagents.comImages, audio & video
Fetch a URL and extract structured metadata from its HTML: title, description, canonical URL, language, favicon URL, RSS/Atom feed links, Open Graph tags (og:title, og:image, og:type, og:description, og:url), Twitter Card tags, and other meta tags (author, keywords, robots). Use this to get Open Graph data, preview cards, or site information without parsing HTML yourself. Send {"url": "https://...
BaseSolanautilsforagents.comfrom $0.0031 endpoint - 4402api Seller CheckCrypto & DeFi
Call before paying an unfamiliar x402 endpoint, or to pick between providers. $0.02, usually <1 s plus one probe: live unpaid probe (status, latency, TLS, PAYMENT-REQUIRED decoded and sanity-checked), seller reputation from indexed on-chain USDC payments to its Base payTo (24 h/7 d count, distinct payers, total and median USD, top-payer share), Bazaar listing and price, and a looks legit/caution/a
Basetokencheck.402api.devfrom $0.022 endpoints - Rrunmydata.comOther services
DryScout01 Hello by RunMyData: paid x402 connectivity check on Base mainnet ($0.001 USDC). Returns {"status":"ok"}.
Baserunmydata.comfrom $0.0011 endpoint - PPulseWatch Status APIOther services
Is a vendor down right now? Current outage status for one SaaS vendor. $0.01 USDC on Base per call. Returns status, active-incident summary, last-checked time, source URL and freshness fields, read live from PulseWatch. Unknown vendors return 404, not charged. Don't use this for past incidents; use /v1/incidents.
Basepulsewatch-status-api.dario-9fa.workers.devfrom $0.011 endpoint - PProofPulseOther services
Check a public URL for meaningful changes and freshness.
Baseproofpulse-api.rvernick05.workers.devfrom $0.011 endpoint
Next Generation MoversData & researchNationwide interstate and long-distance household moves between any two US states, plus local moves in the DC/Maryland/Virginia area. Licensed carrier USDOT 3764697, MC 1341637. Indicative price per tariff (not a legal estimate) between any two US ZIP codes, per cubic foot by distance and size. Local hourly: DC, MD, VA only. Hands off to a free survey and written estimate. 400 on invalid input (no
Basengm-agent-api.nextgenmovers.workers.devfrom $0.011 endpoint- BBlue Cap hash.computeAI & agents
Compute 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.
Basemachine.soundiq.iofrom $0.011 endpoint - Eecon.memoryapi.orgOther services
U.S. County Business Patterns — number of businesses, employees, and payroll by industry (NAICS) and state.
Baseecon.memoryapi.orgfrom $0.0012 endpoints - DDiffiCatImages, audio & video
Captures a full-page screenshot of one public web page in Chromium and returns a link to the PNG. Use it for a one-off visual check of a page, or to keep a reference image before a change. 0.02 USD per call.
Baseapp.difficat.comfrom $0.023 endpoints - BBuiltWithDeveloper tools
Return BuiltWith technology detections and metadata for one domain. Useful for company research, stack analysis, competitive intelligence, and sales qualification.
Baseapi.builtwith.comfrom $0.051 endpoint
TuskiSocial & peopleCreate an email validation job from a JSON list of addresses or CSV text (send exactly one). Poll its status, then fetch results as JSON or CSV. Billing counts only testable addresses, fixed at creation; unreachable, disposable and typo domains are free.
Baseagents.tuski.aifrom $0.015 endpoints- KKARP by SoulDriverSearch & web
Research cards from KARP, SoulDriver's multi-model research engine: GPT, Gemini, Grok and Claude debate a topic over many rounds and publish a conclusion. Each card gives the conclusion, key insight, warnings, dated figures, consensus status, open questions, research date and staleness. See what is covered first with the free POST /v1/coverage; verify time-sensitive points with POST /v1/check. Cat
BaseSolanaagents.souldriver.com.aufrom $0.032 endpoints - 660SecMonitor Status APIDeveloper tools
Is Stripe or another SaaS or cloud vendor down right now? Input: ?vendor=stripe (slug, name or domain). Returns status, confidence, active incidents with a summary, official status page, last-checked time and a staleness flag, read live from 60SecMonitor. $0.01 USDC on Base. Untracked vendors return 404 and aren't charged. Up to 25 vendors at once: /v1/status/batch ($0.05). Past incidents: /v1/inc
Base60secmonitor-status-api.dario-9fa.workers.devfrom $0.011 endpoint - MMarket Quote SnapshotCrypto & DeFi
Real-time US stock & crypto price snapshots with 24h change, 52-week highs/lows and data source. Use when an agent needs current market prices for a whitelisted symbol such as NVDA, BTC or NEAR. Pay $0.001 USDC per call on Base mainnet.
Basex402-report.quanyida.workers.devfrom $0.0012 endpoints - Ttranslate-toll-production.up.railway.appOther services
Language detection. Detect the language of a text. POST /detect {"text":"..."}
Basetranslate-toll-production.up.railway.appfrom $0.0052 endpoints - Ttestnet-x402-api.karpak.xyzSearch & web
Search parking lots worldwide by name, place, setting, facility, amenity and status, or find the nearest to a point: a page of up to 100 lots with live free spaces, hourly prices in USD and distances, and per-country totals; sorted and nearby results come in one page
Base Sepoliatestnet-x402-api.karpak.xyzfrom $0.0014 endpoints
OKF IndexSearch & webOKF Index: search Brazilian federal laws by number/year or words (up to 20 items), paid per call
Baseokfindex.comfrom $0.012 endpoints- Mmusic.jamesbpollack.comImages, audio & video
Search the James B. Pollack music catalog by mood, BPM, key, year, or similarity
Basemusic.jamesbpollack.comfrom $0.051 endpoint - Mmasterclaw.devAI & agents
OpenAI-compatible chat completions backed by DeepSeek (GET probe variant). Answers open-ended questions and returns reasoned analysis.
Basemasterclaw.devfrom $0.051 endpoint - JJev Structured EvaluationAI & agents
Structured evaluation with TypeSafe's Jev (System One) model. Send any state plus typed questions — noul (true/false), choice (pick one), or score (ordinal scale) — and get back calibrated probabilities and confidence for each. Built for routing, classification, triage and policy checks where a fast, predictable, machine-readable answer beats prose.
Basejev-x402-evil.vercel.appfrom $0.0051 endpoint - Iiposignal.xyzOther services
IPOSignal Sentiment Score — proprietary daily signal measuring investor appetite for new listings
Baseiposignal.xyzfrom $0.012 endpoints
HookPulseDeveloper toolsHookPulse: one uptime check of a URL (status, response time, keyword, TLS certificate), paid per call
Basehookpulse.netfrom $0.014 endpoints- Ggecko-toll-production.up.railway.appOther services
Coin price in USD
Basegecko-toll-production.up.railway.appfrom $0.012 endpoints - FFX Rates ECBMarkets & finance
Rates for up to 10 currencies against one base at once, with each one's 30-day change, strongest and weakest first.
BaseSolanaPolygon+1fx-ecb.x402tookit.comfrom $0.023 endpoints
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.