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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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4,150 results- ZzeroclassCrypto & DeFi
Pay-per-call: meter rules_read, $0.05 (service zeroclass). Unsigned/unpaid → 402 x402/MPP challenge; settle and retry. Returns transfer_partners + the Avios interchange bridge + active bonuses.
Basezeroclass.pay.zeroclick.iofrom $0.052 endpoints - Yyieldsignal.vercel.appCrypto & DeFi
Real-time risk-weighted USDC lending APY on Base: Aave/Compound/Morpho read onchain, Moonwell/Euler/Fluid via DefiLlama, source tagged per reading (never estimated). EIP-712 signed by the payment-receiving address (see X-Signal-* headers), which also holds an ERC-8004 identity and attests readings on-chain via EAS. Verified per-asset accuracy is free at /accuracy.json; raw on-chain attestations at
BaseSolanayieldsignal.vercel.appfrom $0.101 endpoint - OOracle AskAI & agents
Paid x402/MCP/A2A/Bazaar consult. JSON wisdom envelope: verdict, wisdom, developer build notes, risk, citations, receipt.
Basex402orcle.vercel.appfrom $0.103 endpoints - PPerfil de contraparte en BaseCrypto & DeFi
Perfil de contraparte en Base: tipo (EOA, EOA con EIP-7702 o contrato), nonce, saldos de ETH y USDC, y flujo de USDC de los últimos 7 días (recibido, enviado, contrapartes y pagadores distintos). Hechos con número de bloque, sin puntajes. Útil antes de pagarle a un payTo desconocido.
Basex402.sumeria.arfrom $0.011 endpoint - AAdalia UndertowCrypto & DeFi
Latest liquidation map for one coin: price clusters of leveraged liquidation levels with each cluster's share of the map and its exact (on-chain) share, the reference price, open interest on-chain and on centralized exchanges, and the exact vs modeled fraction. Coins: BTC, ETH, SOL, XRP, DOGE, BNB, AVAX, LINK, LTC, ADA, SUI, WIF.
Basex402.adalia.eefrom $0.011 endpoint - Xx402-v2-mint-text-diff.vercel.appOther services
Deterministic line/word/char diff with one-line delta summary. Offline. Amp port.
Basex402-v2-mint-text-diff.vercel.appfrom $0.0061 endpoint - GGlobal hourly weather forecastAI & agents
Global weather forecast by latitude/longitude: up to 48 hours of temperature, humidity, wind, cloud cover and next-hour precipitation in UTC with explicit units and model update time. Forecasts, not live observations; missing fields are null and sparse periods are not interpolated. Based on MET Norway data (CC BY 4.0); outage cache is flagged stale.
Baseweather.openverbs.comfrom $0.0021 endpoint - WWickedAPI Wallet OracleSocial & people
Pre-transaction counterparty check for an EVM wallet or contract: OFAC SDN screening, GoPlus malicious-address flags (phishing, drainers, laundering, mixers ...), and a live on-chain profile (EOA / contract / EIP-7702, nonce, balance, ENS, first transaction, contract verification). Returns risk_level, a plain recommendation (do_not_transact / review_before_transacting / no_red_flags_found), every
Basewallet.wickedapi.comfrom $0.0051 endpoint
Orizn Visa APIOther servicesVisa and entry requirements for a passport/destination pair: requirement type, visa-free days, documents, fees, processing time, transit rules, passport validity, overstay penalties and embassy contacts. Answers travel compliance and passport restriction checks, in 15 languages, with the official source and verification date where that pair has been verified.
Basevisa.orizn.appfrom $0.031 endpoint- VVektorwerkAI & agents
Embeds up to 32 texts on the local Ollama runtime. Returns explicit model and dimensions; no paid third-party API is called.
Basevektor.netzhandwerker.defrom $0.0011 endpoint - VVektorwerkOther services
Embeds one query and up to 64 candidates locally, then returns cosine scores and stable descending ranks.
Basevektor.halowerk.comfrom $0.0011 endpoint - IInspect SSL/TLS certificateData & research
Open an SSL/TLS connection to a host and report its certificate — issuer, subject, validity window, days remaining, SANs, fingerprint and trust status.
Basetls.openverbs.comfrom $0.0061 endpoint - TTimezone IntelligenceOther services
Timezone intelligence — offsets, DST, transitions
Basetime.24klabs.aifrom $0.0011 endpoint - Tticks.bnm.farmDeveloper tools
Call GET /ticks when you need the current official USDA farm market prices (hay, cattle, sheep, grain, dairy, hogs, produce, eggs, cold storage, poultry, cotton, grocery retail, grass-fed DTC, production cost, ag energy). Manitoba weekly auction marts are on this table. $0.05 = entire current table. Nationwide USDA AMS; Idaho/PNW barns are example rows. Sample https://ticks.bnm.farm/sample. Rebuy:
Baseticks.bnm.farmfrom $0.051 endpoint - TThe WildCrypto & DeFi
A numbered material, Cairn Crab or Pocket Wild pixel creature from The Wild's field edition, $0.01 USDC on Base: 1000 editions per material or crab, 128 per pixel creature. A public site record with a receipt, optionally dedicated to a spirit's altar; not an NFT.
Basethe-wild-x402.mhoydich.workers.devfrom $0.011 endpoint - Ttensegrity-control-mesh.onrender.comOther services
Deterministic structural failure inspection of a caller-declared control mesh. Structural evidence only; never authorizes execution. 0.01 USDC per request.
Basetensegrity-control-mesh.onrender.comfrom $0.011 endpoint - TTEnergyOther services
65000 TRON energy for USDT (TRC-20) transfers, 1h rental, delivered to the TRON address in the quote. Pay in USDC on Base.
Basetenergy.mefrom $0.351 endpoint - SStock Value LensMarkets & finance
Historical annual company financials, excluding stock prices. Free field list: GET /api/v1
Basestockvaluelens.comfrom $0.0011 endpoint - Sstash.fluidrack.comOther services
Reserve TTL object slot
Basestash.fluidrack.comfrom $0.011 endpoint - SStar CatalogOther services
List catalogued stars in an IAU constellation (name or 3-letter code), brightest first, with an optional named-only filter.
BaseSolanaPolygon+1star-catalog.x402tookit.comfrom $0.022 endpoints - Sstamp.0000402.xyzOther services
Pay $0.01 USDC to create an immutable timestamped statement. The server assigns recorded_at in UTC. Statements are public, permanent, and cannot be edited. Max body size: 10 KB. Network: Base Mainnet. Each request records one statement and returns public proof URLs.
Basestamp.0000402.xyzfrom $0.011 endpoint - Ssprach.halowerk.comOther services
Prüft am Objekt beschreibung den Befund deklarierte Zeichenkodierung.
Basesprach.halowerk.comfrom $0.0011 endpoint - Ssparky-works.vercel.appOther services
Audit a public GitHub bounty issue for stale status, competing pull requests, claimant signals, and solver saturation.
Basesparky-works.vercel.appfrom $0.051 endpoint - SSCRIPTMASTERLABSMarkets & finance
Live SML GreenLight setup board: the dynamic US-equity universe (Alpaca most-actives and movers, Polygon volume surges and 20-day-high breakouts) ranked by multi-timeframe setup score, with price, day change, relative volume, best setup and per-timeframe trend/squeeze state (15m, 30m, 1h, 4h). Query: top (1-50, default 20).
Basesml-greenlight.onrender.comfrom $0.052 endpoints - CCreate slugDeveloper tools
Convert text into a URL-safe slug: transliterate accents, apply a locale character map, and join with a separator.
Baseslug.openverbs.comfrom $0.0021 endpoint - SSitemap URL ExtractorData & research
Give this API a link to any website's sitemap.xml file and it will fetch and parse it, returning every URL found inside. If the sitemap links to other sitemaps (called sitemap indexes), it will follow and extract those too. Each URL is returned with any extra information available, such as when the page was last updated and how often it changes. Useful for SEO audits, content inventories, broken l
BaseSolanasitemap-url-extractor.underscoredone.comfrom $0.011 endpoint - Ssimpleeasytransactions.comOther services
No description yet.
Basesimpleeasytransactions.comfrom $1.002 endpoints - Ssignal.keelbase.ioOther services
Complete latest daily Keelbase Signal records and full synthesis.
Basesignal.keelbase.iofrom $0.031 endpoint - SSignal FoundryMarkets & finance
Use for source-backed Item 1A risk-disclosure changes for one issuer. Pass exactly one ticker or CIK; optionally filter by materiality (HIGH, MEDIUM, LOW) and classification. A successful nonempty request returns all matching RELEASE signals from the latest eligible frozen comparison in Signal Foundry, not necessarily the issuer's latest SEC filing. $0.05 USDC per request, not per signal.
Basesignal-foundry.replit.appfrom $0.051 endpoint
ShieldFormOther servicesInvisible bot protection. Score form submissions 0-100 based on behavioral signals. No CAPTCHAs.
BaseSolanashieldform.waltsoft.netfrom $0.0051 endpoint
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.