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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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4,273 results- Xx402-micro-tollgate.onrender.comOther services
Fetch a public http(s) URL and return Markdown. Pay-per-call via x402 USDC.
Basex402-micro-tollgate.onrender.comfrom $0.0011 endpoint - Xx402-market.kore-app.workers.devCrypto & DeFi
Aggregated crypto market snapshot: prices, Fear & Greed, DeFi TVL, dominance, top stable yields.
Basex402-market.kore-app.workers.devfrom $0.011 endpoint - BBTC Ecosystem RadarCrypto & DeFi
Bitcoin L1 unverified new-protocol candidates only (candidate_protocols full array: evidence_url, tx_count_24h, growth_pct_7d, signal_source). Not in /latest. $0.50. Not investment advice.
BNB ChainBaseSolanax402-btc-radar.jinli-x402.workers.devfrom $0.054 endpoints - WWikidata Entity SearchSocial & people
Wikidata entity search — find the Wikidata item for a person, organisation, place, work or concept by name or alias, in any language, with id, label, description and which term matched; or find a property by name. Use to get the Q-id before asking for an entity's facts, identifiers or links.
BasePolygonArbitrum+1wikidata.use.x402atlas.comfrom $0.011 endpoint - WWattImages, audio & video
Use when you need image embeddings or text embeddings in one 2048-dimension space for retrieval, RAG, semantic search, clustering, or dedup (Qwen3-VL-Embedding-2B, OpenAI-compatible). Batch up to 256 items per call, served 32 at a time. An x402 call is $0.002 when the request includes images, $0.001 for text-only. USDC on Base. 400 is a bad body, 413 is over 48 MiB, 429 means busy (Retry-After).
Basewatt.area21.iofrom $0.0012 endpoints - VVokkoOther services
Does 0x1111111111111111111111111111111111111111 belong to allbirds.com? Evidence, not a guarantee. $0.002.
Basevokko.eufrom $0.0012 endpoints - VVeridictum LegalAI & agents
Verify one legal citation. Body: {"citation": "<string>"} - full ("Miranda v. Arizona, 384 U.S. 436 (1966)") or bare ("384 U.S. 436"); the case name enables mismatch detection. Deterministic: regex plus cache / local corpus / CourtListener, no LLM in the path. status=verified (name confirmed), suspicious (reporter resolves to a DIFFERENT case - the fabrication signature), or not_found. verified=fa
BaseSolanaveridictum.legalfrom $0.012 endpoints - VVENZIA LAB Company ResearchMarkets & finance
VENZIA LAB company research and company intelligence for AI agents. Get a cited JSON report from public sources: overview, key facts, company financials when available, risks, opportunities, confidence and limitations. Use for business research, preliminary due diligence, risk analysis and competitor research of one company per call. Sources may include Wikipedia, web abstracts, company websites a
Basevenzia-complet-ezip.replit.appfrom $0.011 endpoint - Vvehicle-recall-check.iykykblog.workers.devAI & agents
Check NHTSA safety recall campaigns for a vehicle by make, model, and year — or by VIN (decoded live via NHTSA vPIC, then matched). Returns campaign numbers, components, defect/consequence/remedy summaries as published, report dates, units affected, and do-not-drive / park-outside advisories. Recall STATUS only — not a VIN decoder and not a per-VIN remedy-completion check. US federal public data (
Basevehicle-recall-check.iykykblog.workers.devfrom $0.051 endpoint - UUnlistedData & research
Find out why an x402 endpoint isn't listed in the Coinbase CDP Bazaar: checks CDP's live index status and can make a real test payment.
Baseunlisted.shfrom $0.021 endpoint
True Value RankingsCrypto & DeFiUse when someone wants the cryptocurrencies covered by True Value Rankings ranked under their own priorities: send a weight for each of the 8 fundamental metrics (economic model, network security, adoption, privacy, longevity, liquidity, legal clarity, technical development) and, if wanted, a watchlist. Returns rank, TVR Score, valuation category, fair value gap and TVR Estimated Value per coin. $
Basetruevaluerankings.comfrom $0.051 endpoint- Ttoken-api.x402hub.xyzCrypto & DeFi
No description yet.
Basetoken-api.x402hub.xyzfrom $0.0011 endpoint - StablePulseOther services
Tiny rollup - counts by risk category + 5 worst current deviations
BaseSolanaRobinhood Chain+1stable.lonestaroracle.xyzfrom $0.053 endpoints - SSQLGuard Instant CertData & research
Instant Cert — LEGACY TASTE ONLY Exact $0.05 for ONE mutating SQL PASS/FAIL. OFF TABLE as wealth. Prefer Authorize mutating SQL before execute via Pilot Challenge unlock POST /v1/challenge/unlock $100 (amount 100000000) or Gateway invoice $299/mo. Not a production authorize path.
Basesqlguard.iofrom $0.052 endpoints - Ssheets-api-production-636c.up.railway.appOther services
Create styled XLSX workbooks with typed cells, multiple worksheets, filters, frozen headers, numeric formats and cached formula totals. Input strings remain text, including strings beginning with =.
Basesheets-api-production-636c.up.railway.appfrom $0.051 endpoint - SSato HubCrypto & DeFi
Daily Sato Score history for one Sato Hub listing: score, tier components, GitHub stars, status and verification state per day, with the dates the score moved (genuine changes vs our own method revisions marked). Captured daily since 2026-06-12; not reconstructable. The current catalog and the daily score line stay free. Priced per daily point returned: $0.005 for up to 90 days, +$0.001 per day be
BaseSolanasatohub.aifrom $0.0052 endpoints - RRugSenseCrypto & DeFi
Scored intelligence on freshly-launched Base tokens: safety + momentum → composite score and an AVOID/WATCH/HOT decision per launch. One call returns a ranked list.
Baserugsense.xyzfrom $0.031 endpoint - RRandom ChoiceCrypto & DeFi
Cryptographically secure random picker for 2-100 JSON choices. Use for low-stakes one-off random or weighted selection, unbiased tie-breaking, and sampling. Returns the selected value and index, request ID, and weight totals for audit logs. $0.001 USDC per paid request. Not for stable assignments, gambling, security tokens, or consequential decisions; outcomes are not provably fair.
Baserandom.preflightstack.comfrom $0.0011 endpoint - Qqr-api-production-7adc.up.railway.appOther services
Generate SVG or PNG QR codes for links, text and standard payloads. Includes a four-module quiet zone, selectable error correction and validated foreground/background contrast.
Baseqr-api-production-7adc.up.railway.appfrom $0.021 endpoint - PPuzzle SolversOther services
Optimal Tower of Hanoi move list for up to 10 disks between pegs A, B and C, and the minimum move count 2^n - 1.
BaseSolanaPolygon+1puzzle-solvers.x402tookit.comfrom $0.023 endpoints - Ppagecheck-api-production.up.railway.appImages, audio & video
Audit supplied HTML for metadata, canonical URLs, indexability directives, headings, image alternatives, form labels, link names, social metadata and JSON-LD validity. Returns evidence and practical fixes. Static checks are not a full WCAG certification or ranking guarantee.
Basepagecheck-api-production.up.railway.appfrom $0.051 endpoint - Oodood.comAI & agents
POST a URL; get clean, LLM-ready content (Markdown/text/JSON) plus a prompt-injection risk verdict (clean | suspicious | flagged). A defense layer for agents and RAG pipelines, not a guarantee.
Baseodood.comfrom $0.0041 endpoint - Nnrc-event-screen.iykykblog.workers.devData & research
Screen a facility or licensee against U.S. Nuclear Regulatory Commission (NRC) Event Notification reports: matching event notifications with event number, date, facility, state, the NRC's facility category, 10 CFR basis, and the published headline and event text, plus counts by category. Federal public data (nrc.gov).
Basenrc-event-screen.iykykblog.workers.devfrom $0.051 endpoint - AAgent News HubSearch & web
Groups managed news feeds into events when an agent needs a compact news briefing. Supply topic, language, time window and result limit using the published schema. Returns headlines, a short abstract, first-report time, reporting-source counts and citations. Coverage is limited to the managed feed set; source count is not independent confirmation. Third-party article bodies are never returned.
Basenews.halowerk.comfrom $0.0021 endpoint - Mmine-safety-screen.iykykblog.workers.devDeveloper tools
MSHA mine safety verdict by Mine ID, mine name, or operator name: inspections, violation counts (incl. significant & substantial), assessed penalties, accidents/injuries/fatalities, and current mine status. Aggregated from MSHA Open Government Data (US federal public domain).
Basemine-safety-screen.iykykblog.workers.devfrom $0.051 endpoint - LLatAm Official FXMarkets & finance
Official central-bank exchange rate for one Latin American currency against USD (BRL PTAX, ARS BCRA, COP TRM, PEN BCRP, MXN FIX), with source, date and staleness flag.
Baselatam-fx.latamfx.workers.devfrom $0.0021 endpoint - Hhome-health-screen.iykykblog.workers.devData & research
Home-health agency quality verdict by agency name, CMS Certification Number (CCN), or ZIP code. Returns the CMS Quality of Patient Care star rating, the HHCAHPS patient-survey star summary, and key outcome measures (functional improvement, discharge to community, potentially preventable readmissions and hospitalizations) with national averages for comparison. Source: CMS Provider Data Catalog (US
Basehome-health-screen.iykykblog.workers.devfrom $0.051 endpoint - Xx402 HailData & research
Hail at a US address or lat/lon on one date: the largest NOAA radar estimate of hail size (MRMS MESH) at the place and within 1, 3, 5 and 10 miles, NEXRAD hail signatures, nearby spotter reports, and a verdict (hail_likely, hail_possible, no_hail_detected). Dates from 2020-10-14. For roofing, insurance claims and property checks. Not found addresses and dates without data are not charged.
Basehail.kagurazaka.devfrom $0.103 endpoints - FFutures Expiry APICrypto & DeFi
Returns all four quarterly expirations and roll dates of a CME or Eurex index future for one calendar year, with holiday adjustments.
Basefutures-expiry-api.onrender.comfrom $0.032 endpoints - DDEO MathData & research
Evaluate whether a mathematical research branch should continue, revise, abstain, or escalate.
Basedeomath.orgfrom $0.031 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.