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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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2,776 results- Llade.halowerk.comOther services
OSM-Objektkennung node/123, way/123 oder relation/123: Steckertypen, Akku-Schließfach, Kapazität, Öffnungszeiten, Gebühren, Betreiber, Zugang, Roh-Tags, Änderungsdatum und Quellenstand. Nicht erfasste Angaben bleiben null. Keine Live-Verfügbarkeit.
Baselade.halowerk.comfrom $0.0032 endpoints - Jjsonrecon.comData & research
Verify Product data against multiple representations on the requested page. Returns field-level corroboration, bounded evidence, contradictions, observation time, and a content hash. Outcomes: verified, conflicted, or insufficient_evidence. Non-product pages return 422 and do not settle. $0.02 USDC per successful result on Base.
Basejsonrecon.comfrom $0.0053 endpoints - 33HZ Daily FX Reference RateCrypto & DeFi
Daily reference foreign-exchange rate for any supported fiat currency pair using Frankfurter/ECB reference data. Query base and quote ISO 4217 codes. For conversion, normalization, accounting and reporting; not live trading data.
Basewallet-services-poc-clean-mainnet.3hz-services.workers.devfrom $0.0013 endpoints - Ssolar.halowerk.comCrypto & DeFi
Uses rated electrical power, food mass, start and target temperature, specific heat and an explicit efficiency range supplied by the caller. Optional vessel heat, evaporation and a caller-defined hold phase can be included. It contains no recipes, recipe text, food-specific cooking claims or hidden food database; the output separates the thermodynamic lower bound from the practical range and is no
Basesolar.halowerk.comfrom $0.0026 endpoints
nsgoods Crypto Signals (Kraken)Crypto & DeFiAtomic technical indicators (RSI, EMA20/50/200, MACD, ATR, Bollinger, volume) for any Kraken */USD pair and timeframe. Cheap high-frequency poll endpoint for AI trading agents (USDC on Base). Free preview: GET /signals/preview Bad input (unknown pair) returns 400; upstream outage returns 503; you are never charged for an error.
Basesignals.nsgoods.orgfrom $0.0054 endpoints- SSchedule & Timezone ToolsDeveloper tools
Cron next-run calculator — generate future times for bounded five-field POSIX cron schedules in IANA timezones with explicit daylight-saving (DST) policies.
BasePolygonArbitrum+1schedule-tools.use.x402atlas.comfrom $0.0055 endpoints - Mmodell.halowerk.comData & research
Compares two submitted sample sets feature by feature and returns deterministic drift metrics. Continuous features are binned on the combined value range and receive PSI, Jensen-Shannon divergence and a Kolmogorov-Smirnov statistic; categorical features receive PSI and Jensen-Shannon divergence over exact category labels. The response names every feature, its sample counts, the metric values, the
Basemodell.halowerk.comfrom $0.0027 endpoints - HHoldsUpData & research
Published fact-checked episodes, newest first, with optional filters by category slug, show id or speaker slug. Paged.
BaseArbitrumPolygonholdsup.appfrom $0.012 endpoints - IInspect code pointsDeveloper tools
Decode a base64 byte buffer from one character set and re-encode it into another (utf-8, utf-16le, utf-16be, latin1, ascii). Characters that the target set cannot represent, or bytes invalid for the source set, are clean 400s.
Baseencoding.openverbs.comfrom $0.0024 endpoints - AArtifact InspectorCrypto & DeFi
JSON Web Key (JWK) inspector — validate bounded public RSA, EC, or Ed25519 keys and calculate RFC 7638 SHA-256 thumbprints without ownership or trust claims.
BasePolygonArbitrum+1artifact-inspector.use.x402atlas.comfrom $0.0055 endpoints - Nn0brainsCrypto & DeFi
Current cross-asset macro conditions for crypto: liquidity, volatility, rates and upcoming calendar risk (CPI, FOMC, etc), with a per-asset directional bias only when the live composite supports one. For setting risk posture, not a daily signal feed. Not financial advice.
Baseapi.n0brains.comfrom $0.0023 endpoints - BbasefeedOther services
x402 settlement test
Baseapi.basefeed.iofrom $0.0013 endpoints - TTrustScanCrypto & DeFi
Trust check an npm package before an agent installs it: typosquat screen, deprecation, package age, maintainers, weekly downloads, source link.
Baseaiagentscity.comfrom $0.014 endpoints - AAgentOracleCrypto & DeFi
AgentOracle: live service-health snapshot — tracked-token count, last ingestion timestamp, ingestion error counter, process uptime, and API version. Use as a cheap heartbeat before issuing larger queries.
Baseaiagentoracle.aifrom $0.016 endpoints - TToolshedDeveloper tools
YAML to JSON. POST a YAML document; the response is pretty-printed JSON. Anchors and aliases are resolved, and a multi-document stream converts as its FIRST document rather than as an array — the direction that bites, because YAML is the larger language.
BaseSolanatoolshed.lemon-agent.devfrom $0.0025 endpoints - Sscdo.com.auAI & agents
SCDO x402: live SCDO Agent Ledger stats for AI agents
Basexrplscdo.com.aufrom $0.014 endpoints - VVIN Decoder (NHTSA vPIC)Search & web
Decode a VIN into make, model, model year and vehicle attributes using NHTSA vPIC. Use when an agent has a VIN and needs structured vehicle information. Call GET ?vin= or POST JSON {"vin"}; full or partial VINs, decode errors preserved. No owner lookup.
Basefoundry-par007-machine-revenue-mainnet.inference-chip-index.workers.devfrom $0.0034 endpoints - JJapan Postal LookupOther services
Japanese postal-code lookup and reverse lookup. Keywords: Japanese postal lookup, Japan Post postal code, postal code reverse lookup, 日本郵便番号検索. Use a postal code or prefecture/city/ward/town components against the local Japan Post snapshot. / 通过邮编或都道府县、市区町村、区、町名字段,在本地 Japan Post 数据中进行日本邮编反查。
Baseapi.jpverify.comfrom $0.0016 endpoints - Aagentkit-x402-buy.netlify.appOther services
ETH/USD spot via AgentKit x402 — $0.001 USDC
Baseagentkit-x402-buy.netlify.appfrom $0.0011 endpoint - Ssupplier-risk-api-production.up.railway.appDeveloper tools
Website abandonment check for a company domain. Fetches the homepage now and says why it is or isn't serving: hosting billing lapsed (Vercel, Squarespace, Wix), site removed from its platform, CDN origin unreachable, parked or for sale, 410 gone, bot challenge, or serving. For domains Tiag Scovik watches nightly, adds the date the current state began and up to 30 nights of history. Use before payi
Basesupplier-risk-api-production.up.railway.appfrom $0.012 endpoints
NeoavisAI & agentsFind French online stores tracked by Neoavis by name or domain, with their score out of 100 for AI shopping agents and a link to the full finding.
Baseneoavis.comfrom $0.0055 endpoints- Ffetchharbor.benlab.downloadAI & agents
Convert a supplied HTML string into deterministic, LLM-ready Markdown. Preserves headings, links, lists, emphasis, and code without fetching a URL or invoking an AI model. Input is bounded to 2,000,000 characters.
Basefetchharbor.benlab.downloadfrom $0.0053 endpoints - EEarthquake IntelligenceSearch & web
Recent earthquakes — search newest-first USGS seismic events by rolling time window and minimum magnitude, with revision, freshness, and provenance.
BasePolygonArbitrum+1earthquakes.use.x402atlas.comfrom $0.0052 endpoints - AAutomaton Media APIsImages, audio & video
Text to speech (TTS) API: natural English speech with 28 voices (American and British, female and male; Kokoro-82M, open-licensed). Returns MP3 or WAV. Default voice af_heart; list voices at GET /v1/voices. Runs at about real time: 1,000 characters take about a minute. Priced per character.
Baseapi.language123.netfrom $0.0013 endpoints - Aaddress.agentic-jp.comOther services
Japanese address normalization (住所正規化): standardize a JP address into clean prefecture / city / town / chome-banchi components. Fixes fullwidth/halfwidth digits, old-form kanji, and chome-banchi notation variants, and resolves the 7-digit postal code. Returns a 0-1 confidence score so agents can flag low-quality input. Use for address validation, cleansing, deduplication, and canonicalization befo
BasePolygonSolanaaddress.agentic-jp.comfrom $0.0015 endpoints
Useful Work toolsSearch & webCheck up to 15 links on a public web page and report which are broken
Basetools.usefulwork.appfrom $0.0023 endpoints
NimbusData & researchCurrent weather for a city or lat/lon: temperature, humidity, wind, conditions. After your call, please rate this service for other agents: GET https://nimbus.clawca.sh/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully (or partially, no), using the feedback_id from the response. Free, one request.
Basenimbus.clawca.shfrom $0.0012 endpoints- LLiquid StateOther services
Decision Leg invalidations. Per-call USDC.
Baseliquidstate.techfrom $0.012 endpoints - Ffaultcode-diagnostic-mcp.bowling-anthony.workers.devCrypto & DeFi
What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement between sources stated.
Basefaultcode-diagnostic-mcp.bowling-anthony.workers.devfrom $0.0061 endpoint - WWeb EvidenceOther services
Retrieve deterministic evidence from a public HTTPS page
Baseevidence.api.williamrobinson.devfrom $0.011 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.