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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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393 results- RRiskPulseSocial & people
Country risk profile, political risk rating, security and travel-safety intelligence for any country. Covers political, economic, security, health, and legal risk dimensions using governance, conflict, and earthquake data.
BaseSolanaPolygon+8riskpulse.theaslangroupllc.comfrom $0.102 endpoints - Ooracleinsight.xyzCrypto & DeFi
Execution preflight: a chain-neutral ALLOW/CAUTION/BLOCK data-sufficiency decision for one declared action. A complete BLOCK result is charged; settlement occurs only after a successful response.
BasePolygonArbitrum+3oracleinsight.xyzfrom $0.022 endpoints - IInstagram Profile & PostsImages, audio & video
Page through an Instagram account's posts by username — captions, like and comment counts, media type, video duration, image and thumbnail URLs, post permalinks, tagged users and location, plus a cursor for the next page. Instagram posts feed, reels listing, creator content history, social post data. No API key.
BasePolygonArbitrum+1instagram.use.x402atlas.comfrom $0.022 endpoints
DeepCounterfeitCrypto & DeFiDeepCounterfeit pre-buy check for 8QtbrC9d3BezyCwzBFUQbNsWJGte7ckrZ7HWcn81pump (risk signals, informational only, not financial advice)
BaseSolanaPolygon+1deepcounterfeit.comfrom $0.011 endpoint- Aapi.borisinc.comOther services
No description yet.
BaseSolanaPolygon+1api.borisinc.comfrom $0.0011 endpoint - GGlobal WeatherData & research
Dew point from air temperature and relative humidity in C and F, with a human comfort class and condensation hint.
BaseSolanaPolygon+1weather-global.x402tookit.comfrom $0.021 endpoint - UUS Treasury MacroMarkets & finance
US Treasury official quarterly reporting exchange rate for a country's currency, with effective date and prior quarters.
BaseSolanaPolygon+1treasury-macro.x402tookit.comfrom $0.021 endpoint - SSpace WeatherData & research
Active sunspot regions on the Sun now: count, complex magnetic types that can flare, and recent flare counts.
BaseSolanaPolygon+1space-weather.x402tookit.comfrom $0.021 endpoint - GGoogle SERP Analysis for SEOImages, audio & video
Analyze Google search results for a keyword. Returns organic results, featured snippet, People Also Ask, SERP features. Google SERP analysis for SEO and keyword research: ranking pages, featured snippet owner, PAA questions, related searches, and which SERP features appear (knowledge graph, AI overview, videos, shopping, local pack, ads), by country and language.
BasePolygonArbitrum+1serp.use.x402atlas.comfrom $0.151 endpoint - RRadio & RF CalcDeveloper tools
Convert power between dBm, dBW, mW and W, and the RMS and peak voltage across 50 ohms (or your impedance).
BaseSolanaPolygon+1radio-calc.x402tookit.comfrom $0.021 endpoint - PPortfolio StatsOther services
Rolling mean return and rolling annualized volatility over a window, from a price or return series you supply.
BaseSolanaPolygon+1portfolio-stats.x402tookit.comfrom $0.021 endpoint - PPhysics CalculatorsOther services
Blackbody radiation: Wien peak wavelength and frequency, Stefan-Boltzmann power per area, and total power for an area or sphere.
BaseSolanaPolygon+1physics-calc.x402tookit.comfrom $0.021 endpoint - EEU Trademark Search (EUIPO)Search & web
EU trademark search (EUIPO) — find registered and pending EU trademarks by name, optionally filtered by Nice class; returns trademark names, application numbers, status, owners, classes and key dates as clean JSON.
BasePolygonArbitrum+1euipo.use.x402atlas.comfrom $0.501 endpoint - CCrawl Pre-FlightSearch & web
Crawl pre-flight for a domain: will you be blocked, is content behind a paywall, and how much is actually there. Returns per-bot robots.txt verdicts for 16 AI crawlers, crawlable page count from sitemaps, detected CDN and paid-access signals (x402, TollBit), plus a fetch/skip recommendation. Call before spending requests on an unknown domain.
BasePolygonArbitrumcrawl-preflight.postnov01.workers.devfrom $0.021 endpoint - WWeb Page ExtractSearch & web
Fetch a public https page and return its HTML tables as header and row arrays, with captions and row/column spans resolved.
BaseSolanaPolygon+1web-extract.x402tookit.comfrom $0.031 endpoint
DevX Token Safety & HoneypotCrypto & DeFiHoneypot check, rug check and token safety check: is this token safe or a scam? Token verdict (safe/caution/danger), 0-100 token risk score and reasons. Chains: Base, Ethereum, Arbitrum, Optimism, Polygon, Robinhood Chain, Solana. Honeypot detector (EVM): simulated buy/sell with real tax. Rug check incl. Solana: owner, mint, blacklist, pause, proxy, mint/freeze authority, liquidity, holders, age.
BasePolygonArbitrum+2tokencheck.madebydevx.comfrom $0.011 endpoint- SSupplier CheckOther services
Screen a US-listed company by CIK: severe 8-K items, late-filing notices, going-concern wording, LEI status. Never says safe.
BaseSolanaPolygon+1supplier-check.x402tookit.comfrom $0.751 endpoint - SSun, Moon and PlanetsOther services
Sunrise, sunset, solar noon, three twilights, golden and blue hour for a lat/lon and date; handles polar day and night.
BaseSolanaPolygon+1sky-calc.x402tookit.comfrom $0.021 endpoint - JJobs SearchSearch & web
Job search — find current openings by role, skill or company with location, salary, schedule, qualifications and direct application links.
BasePolygonArbitrum+1jobs.use.x402atlas.comfrom $0.051 endpoint - Ppcmarts/open-release-demo-nextAI & agents
pcmarts/open-release-demo-next v1.1.0 — release. open release demo example Security scan passed; signed download, 5-minute URL.
BaseArbitrumstellarhack.x402git.comfrom $1.001 endpoint - EEdge Agents AICrypto & DeFi
Euro Area M3 from official ECB statistics, normalized for autonomous-agent use with explicit source timing, evidence and limitations. Purpose: give an agent the latest available euro area m3 with recent official history and source timing 24-hour freshness target; missing evidence is reported explicitly rather than invented.
BasexrplSolana+2edge-agents.aifrom $0.011 endpoint - Ddlf-gateway.agentlabel.workers.devImages, audio & video
DLF agent API key — $0.10 unlocks 10,000 mcents (1:1 starter) + $0.05 activation bonus unlockable by labeling 5 images
BaseRobinhood ChainPolygon+1dlf-gateway.agentlabel.workers.devfrom $0.101 endpoint
YourAITools CreditsCrypto & DeFiPrepaid API credits (sample pack). Prepaid credits for the YourAITools agent APIs: one x402 payment of $0.005 USDC mints an API key holding $0.005 of credits. Send it as Authorization: Bearer <key> to PayGuard, TokenVerdict, SignCheck, WebRead, InjectScan, DomainCheck, PkgGuard, StackDetect or AgentGate paid routes; each call debits its normal price instead of an on-chain payment. Key shown once.
BasePolygonArbitrum+1credits.agentgate.workers.devfrom $0.0051 endpoint
Tanod chainpeekCrypto & DeFichainpeek (Tanod) Solana SPL token mint info: supply, decimals, authorities. Read-only. Use when an agent needs an SPL token mint's supply, decimals and authorities on Solana.
BasePolygonSolana+2chain.tanod.devfrom $0.0021 endpoint- Aapi.datanexusai.orgData & research
Eurostat Comext trade facts (value and quantity).
BasePolygonArbitrumapi.datanexusai.orgfrom $0.013 endpoints - AAgent HubCrypto & DeFi
JSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.
BasePolygonArbitrum+1agents.torbrooknews.comfrom $0.0011 endpoint
Citiview Agent MarketCrypto & DeFiJSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.
BasePolygonArbitrum+1agents.citiviewgroup.comfrom $0.0021 endpoint
AgentRXICrypto & DeFiJSON-RPC read access to EVM chains (base, ethereum, polygon, arbitrum, optimism) with no API key. Send a standard JSON-RPC body (eth_call, eth_getBalance, eth_blockNumber, eth_getLogs). Also callable as GET with the same fields as query parameters.
BasePolygonArbitrum+1agentrxi.comfrom $0.0021 endpoint- AAgent EmbassyAI & agents
Use ping when you need a pass/fail verdict that a URL serves expected content: expected HTTP status (default 200), a required body substring, and/or an exact match on one JSON field. One automated fetch at request time, signed receipt with per-condition results. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402
BaseArbitrumaemb.profrom $0.051 endpoint - Yyiduochan.comImages, audio & video
Buy $0.10 of prepaid credits for the YiduoChan inference gateway and receive a working API key in the response. The key works with any OpenAI-compatible client against https://yiduochan.com/v1 and covers chat, reasoning, text-to-speech, image and video models. Credits are spent per token at published rates; no account, email or signup is required.
Arbitrumyiduochan.comfrom $0.012 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.