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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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555 results- BBrazil Rates and InflationOther services
Brazil IPCA inflation — latest monthly consumer-price change in percent. Track inflation and purchasing-power trends with the reference month.
BasePolygonArbitrum+1brazil-macro.use.x402atlas.comfrom $0.012 endpoints - UUUID InspectorOther services
UUID inspector — parses any UUID (canonical, braces, URN or 32-hex form) and returns its version, variant, embedded timestamp for v1/v6/v7, nil/max flags, hex and URN forms. Use to validate identifiers or recover the creation time of UUIDv7 keys.
BasePolygonArbitrum+1uuid.use.x402atlas.comfrom $0.0052 endpoints
PerpRadar by AgentGateImages, audio & videoBulk token risk check API for Base (batch honeypot and rug scan). Batch Base token risk verdicts: up to 20 ERC-20 addresses in one call, priced per address, each with the same fixed JSON as /v1/verdict (verdict safe / caution / danger, risk_score 0-100, honeypot and tax simulation, owner privileges, proxy, LP, holders, verified, age; unknown when a source is down). Charged only when at least one a
BasePolygonArbitrum+1api.youraitools.cofrom $0.000569 endpoints- SSolSentryCrypto & DeFi
Full risk assessment for an SPL token mint: risk score and level, the flags that drove it, bundle detection, the deploying wallet when it is known, and a human-readable summary. Where the mint has already been resolved, the recorded outcome is returned alongside the original prediction.
Solanaapi.solsentry.appfrom $0.0047 endpoints
GenTech DefiCrypto & DeFiGenTech Labs x402 - Security
BaseAvalancheX Layer+3api.gentechlabs.netfrom $0.00521 endpoints- VVerifiable Random ToolsImages, audio & video
Verifiable Random shuffle — a uniform Fisher-Yates permutation bound to a future drand round the server waits for (typically 3-6s) and verifies locally, with original indices and a reproducible proof transcript.
BasePolygonArbitrum+1verifiable-random.use.x402atlas.comfrom $0.0053 endpoints - Sscribe.vimabrosta.comDeveloper tools
Look up a domain: registration data from RDAP (registrar, created, expires, status, nameservers), live DNS records (A, AAAA, MX, NS, TXT, CNAME), the TLS certificate served at the name (issuer, validity, alternative names, fingerprint), and the HTTP front door (status, server, redirect). One JSON answer, no API key, no rate-limited WHOIS. GET with ?name= or POST. $0.005.
BaseSolanascribe.vimabrosta.comfrom $0.0053 endpoints - NNetIntel RouterSearch & web
Which x402 endpoint should I call? Describe the job in plain words; get the 3 best endpoints from different providers, each health-checked live just now, with its current price quote, its inputs and the reasons — ranked over the whole Coinbase Bazaar catalog by fit, real paying demand and health. Uncharged when nothing passes.
BaseSolanarouter.netintel.devfrom $0.0022 endpoints - VViewportWitness by Apex LabsSearch & web
DOM to Markdown: extract readable content from a public HTML webpage
BaseSolanaqa.honeygate.appfrom $0.0053 endpoints - Ppkg-oracleCrypto & DeFi
Checks whether an npm, PyPI, or crates.io package is safe to install: confirms it exists, flags malicious or typosquatted/slopsquatted names, checks known CVEs (OSV.dev), and pulls its OpenSSF Scorecard. Returns an ALLOW/WARN/BLOCK verdict before your agent installs it.
BaseSolanamcp-snowy-dew-9447.fly.devfrom $0.0031 endpoint
Paxie.Matrix Data APISocial & peopleOne Robinhood Chain Uniswap v4 or v3 pool: 1-minute buckets for the last 60 minutes (net ETH, buy ETH, sell ETH, buy and sell swap counts) plus its burst history.
BaseSolanaapi.paxie.funfrom $0.0057 endpoints- UURL Unwrap / Redirect TracerCrypto & DeFi
Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL + status), the final URL, and safety warnings — link-safety grounding for agents before they visit or cite a URL. Clean JSON.
BasePolygonArbitrum+1unwrap.use.x402atlas.comfrom $0.0091 endpoint - QQR Code & Identicon GeneratorCrypto & DeFi
Identicon generator — turn an exact UTF-8 seed into a deterministic mirrored avatar returned as base64-encoded SVG or PNG in JSON.
BasePolygonArbitrum+1visuals.use.x402atlas.comfrom $0.0052 endpoints - SStablecoinPulseCrypto & DeFi
Stablecoin peg tick — USDT, USDC, USDS, DAI, USDe, USD1 in ONE $0.01 call: live price, deviation from $1, 24h change, and a deterministic STABLE / WATCH / ALERT verdict per coin. Built for monitoring loops: call it every cycle, escalate to /api/depeg-watch for the single-coin deep read when a verdict is not STABLE. 60s freshness, cited to CoinGecko, no LLM in the path.
BaseSolanaPolygon+8stablecoinpulse.theaslangroupllc.comfrom $0.015 endpoints - Ffurigana.agentic-jp.comImages, audio & video
Convert 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.
BasePolygonSolanafurigana.agentic-jp.comfrom $0.0013 endpoints - FFDA Drug LabelData & research
FDA drug label lookup — the newest prescribing information for a brand or generic drug name: boxed warning, indications, dosage, contraindications, warnings, adverse reactions and drug interactions as previews or one section in full, plus manufacturer, route, RxNorm, UNII and application numbers. Use to read what a drug is approved for and its official warnings.
BasePolygonArbitrum+1fda-drugs.use.x402atlas.comfrom $0.013 endpoints - Ddomain.hugen.tokyoCrypto & DeFi
WHOIS registration lookup — registrar, creation/expiry/updated dates, domain age in days, name servers, DNSSEC, registrant country/org, EPP status codes. All TLDs (.com .net .org .io .dev .ai ccTLDs gTLDs). Per-field error resilience for TLD-specific parsing quirks. No WHOIS library setup or TLD-specific parsing needed. Accepts USDC payments on Base and Solana
BaseSolanadomain.hugen.tokyofrom $0.017 endpoints - Ccashboard.liveCrypto & DeFi
The stored open interest series of one Hyperliquid perp over the last 15, 60 or 240 minutes, from Cashboard's own minute-by-minute history: open interest in contracts and USD, mark price and funding APR per point, and the change over the window. Points are 1, 2 or 5 minutes apart. Not charged until the history reaches back over the whole window and has a snapshot from the last two minutes. Names a
BaseSolanacashboard.livefrom $0.017 endpoints - Ddartapi.ljaysk.comOther services
Korean corporate disclosure (DART) event stream, cursor-based delta. All filings, classified with importance score.
BaseSolanadartapi.ljaysk.comfrom $0.0023 endpoints
RAVNCrypto & DeFiRAVN — best-price swap quotes across 22 execution venues and 18 chains, including native (non-wrapped) Bitcoin as either source or destination. 0% protocol fee, non-custodial. Returns a quoteToken; pass it to POST /execute.
BaseSolanaapp.ravn.exchangefrom $0.0013 endpoints- Aapi.ambolt.devSearch & web
Resolve a company name, website domain, registry number, LEI or VAT number to its official legal entity: registry, registry number, legal form, status, address, industry codes, size where published and LEI. Searches national registers (Norway, Finland, Czechia, Slovakia, France, UK, Latvia; Poland by KRS number) and GLEIF, scores the match and links every record to its source. Company-level only:
BasePolygonSolanaapi.ambolt.devfrom $0.011 endpoint - AANIME INTELLIGENCEOther services
PRICE: 0.005 USDC. Multilingual vague-to-canonical shopping intelligence for physical anime collectibles. Accept requests such as 'I want a ONE PIECE figure', 'a big cheap Pikachu plush', 'é¨å±ã«é£¾ãããã£ãããã¾ã', or 'a Japan-only Luffy figure' even when the exact product is unknown. Interpret hard identity constraints plus soft preferences such as budget, color, size, style, gift
Solanaanime-intelligence.goodmy0312.workers.devfrom $0.0055 endpoints - Ddiet.agentic-jp.comSearch & web
Search current Japanese (JP) National Diet members by name (kanji, kana, or romaji), party, or constituency. Returns matching members with their canonical ids for use with GET /members/:id. Use to resolve a politician name to a record.
BasePolygonSolanadiet.agentic-jp.comfrom $0.0051 endpoint
BorderScoutOther servicesUS border wait times: live CBP waits at all 85 US-Mexico and US-Canada land ports of entry, ranked by drive time plus wait for each lane (standard, SENTRI/NEXUS, Ready Lane, FAST) for passenger, commercial or pedestrian traffic. BorderScout
BaseArbitrumPolygon+2borderscout.scalpstream.comfrom $0.011 endpoint
TikTok AutomationSocial & peopleList the TikTok accounts your wallet owns, with session health.
SolanaBasetiktok.palmyr.aifrom $0.0012 endpoints- AAgent Output VerifierCrypto & DeFi
Check an AI agent's track record: signed verification history, pass/fail counts, recency-weighted score. $0.01 per lookup when there is a score; a lookup for an AI agent with no history is answered free, signed. USDC via x402 v2 (Base/Solana).
BaseSolanascore.sarnai.devfrom $0.011 endpoint - Ssolana-wallet-x402Crypto & DeFi
Call this before your agent buys a Solana token. One call runs five isolated checks: token risk (sell-side skim and fee/hook controls), top-holder concentration (the factor behind our bundle score), stablecoin lookalike detection, xStock status (issuer mint list, lookalikes and issuer objections), and optionally an x402 payee check (verdict ok, caution, do_not_pay or unknown). Unknown mints return
SolanaBasesolana-wallet-intel-phi.vercel.appfrom $0.00312 endpoints - AAcademic Paper SearchSearch & web
Scientific and academic paper search: research papers and scholarly literature from arXiv, PubMed, OpenAlex, Crossref and Semantic Scholar in one call, deduplicated and retraction-aware. Each hit: DOI, authors, venue, snippet, citation count and citations per year, type, open-access PDF link. Sort by relevance, recency, citations or impact. Keyless. For literature review and citing research.
BasePolygonArbitrum+1papers.use.x402atlas.comfrom $0.0052 endpoints - HHosakaSocial & people
Use when you have a company domain and need to know what the company is before spending more. Returns the company name and site title, domain age, registrar, mail provider, DNS provider, DMARC and HTTPS status, and a count of the third-party vendors detected. One call, no signup, no API key. The cheapest way to qualify a domain before buying a fuller record.
BasealgorandPolygon+4hosaka-agents.vercel.appfrom $0.0051 endpoint - OOpen Source Vulnerability CheckSocial & people
Batch dependency vulnerability check — check ordered exact package versions in OSV with deduplicated CVE enrichment, explicit completeness, and CISA KEV known-exploited signals.
BasePolygonArbitrum+1dependency-risk.use.x402atlas.comfrom $0.0053 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.