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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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428 results- Ffiles.camelai.ioDeveloper tools
Upload a file and get a temporary signed URL. Send raw file body with Content-Type header. Returns a URL valid for 1 hour.
BasePolygonSolanafiles.camelai.iofrom $0.0011 endpoint
AgentTalkCrypto & DeFiBefore your agent negotiates or shares data with another agent, make both prove they qualify. Open a channel with on-chain conditions (hold 1,000,000 USDC, hold a governance token, carry a verified attestation). Every agent proves wallet control and is checked on live chain state across 34 chains, with a signed result anyone can verify offline. Re-check on demand; whoever stops qualifying is remov
BasePolygonArbitrumskyemeta.comfrom $0.153 endpoints- CCanadian Rates and YieldsMarkets & finance
Compare Canadian interest rates and government bond yields using the latest available Bank of Canada policy rate and six benchmark maturities. Track monetary policy, benchmark borrowing costs and compare the yield curve. Original data is available free at bankofcanada.ca.
BasePolygonArbitrum+1canada-rates.use.x402atlas.comfrom $0.011 endpoint - GGlobal Legal EntitiesSocial & people
Company name search — find Legal Entity Identifiers (LEIs), legal names, jurisdictions and registration status. Get up to ten matches per page to identify counterparties, distinguish similarly named companies and enrich company reference data.
BasePolygonArbitrum+1legal-entities.use.x402atlas.comfrom $0.011 endpoint - Wwatchevelive.comOther services
Eve’s RWA print: which official number is the actual (T-bill, gold, NAV). Call for official prints, not casino coins.
BasePolygonArbitrum+10watchevelive.comfrom $0.051 endpoint - SStatEdgeOther services
StatEdge ATS records — historical against-the-spread trends for specific situations and teams
BaseSolanaPolygon+8stateedge.theaslangroupllc.comfrom $0.084 endpoints - RRecurrence Rules (RRULE)Other services
Dates for every N business days, or the last or Nth business day of each month, skipping weekends and your holiday list.
BaseSolanaPolygon+1recurrence-rules.x402tookit.comfrom $0.024 endpoints - PPolymarket EventsCrypto & DeFi
Prediction market events by topic — page through open or closed Polymarket events under one tag such as politics, crypto, economy, geopolitics or ai, each with status, dates, volume, liquidity and markets with current YES prices. Use to survey what a prediction market is pricing on a subject.
BasePolygonArbitrum+1polymarket.use.x402atlas.comfrom $0.012 endpoints - MMailPulseImages, audio & video
Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.
BaseSolanaPolygon+8mailpulse.theaslangroupllc.comfrom $0.0052 endpoints - BBulk ExportsData & research
USGS earthquakes in a date window (up to 31 days) above a minimum magnitude: time, magnitude, place, lat/lon, depth.
BaseSolanaPolygon+1bulk-exports.x402tookit.comfrom $0.504 endpoints - CChat Completion (basic)Crypto & DeFi
LLM completion per call, no account and no API key: POST a prompt (or a messages array) and get the model answer as JSON. Hard caps disclosed in every response (6,000 UTF-8 bytes in, 750 tokens out on this tier). Fixed price per call, signed receipt included so the answer stays auditable. Larger tier at /x402/chat-plus.
BaseArbitrumPolygon+1api.eucompliance.toolsfrom $0.00123 endpoints
web-extractSearch & webExtrae el contenido de una URL y lo devuelve limpio en Markdown/HTML para el contexto de un LLM.
BasePolygonxl402.agentsats.orgfrom $0.021 endpoint- 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 - 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 - RResearch Paper ChecksSocial & people
Researcher profile by name: works, citations, h-index and institution of the best match, with an ambiguity warning.
BaseSolanaPolygon+1research-papers.x402tookit.comfrom $0.022 endpoints - PPlumbing & Pipe Flow CalcOther services
Flow rate in gpm and litres per minute from a bucket test: container volume and seconds to fill, with a daily-use estimate.
BaseSolanaPolygon+1plumbing-calc.x402tookit.comfrom $0.022 endpoints - AAQL PropertyCheckData & research
AQL PropertyCheck full report for one City of Gold Coast or Brisbane City address: the property and what surrounds it, with source and status where supplied by the result. Coverage is checked before any charge. Not a valuation.
BasePolygonSolanaagents.alphaquantlabs.aifrom $0.981 endpoint - WWeb ProbeDeveloper tools
Time one GET to a URL: DNS, connect, TLS, first byte and total ms, plus status, content type and size read.
BaseSolanaPolygon+1web-probe.x402tookit.comfrom $0.023 endpoints - UUnicode Text Safety ToolsOther services
Detect Trojan Source bidi controls (CVE-2021-42574): overrides, isolates, unbalanced openers, stray closers, with positions.
BaseSolanaPolygon+1unicode-text-tools.x402tookit.comfrom $0.023 endpoints - TTrade and Customs ReferenceSearch & web
List a Harmonized System 2022 chapter (01-97): title, section, and its headings or 6-digit subheadings.
BaseSolanaPolygon+1trade-reference.x402tookit.comfrom $0.023 endpoints - PPulseNetworkMarkets & finance
How to make money with AI — one tailored business-in-a-box. Give a goal, budget and interests; get a specific business to start now: the exact real-time PulseNetwork API engine to build it on, suggested pricing, unit economics, monetization paths, and a fork-and-ship starter kit. Turns 'find me a way to earn / passive income / start a business' into a concrete plan. For agents tasked with making m
BaseSolanaPolygon+8pulse.theaslangroupllc.comfrom $0.011 endpoint - UUS Treasury Interest CostsMarkets & finance
US Treasury interest rates — latest monthly average rates on outstanding government debt, including Treasury bills, notes, bonds, TIPS, floating-rate notes and savings securities. Track federal borrowing costs and compare rates across security classes.
BasePolygonArbitrum+1avg-interest-rates.use.x402atlas.comfrom $0.011 endpoint - AagmailAI & agents
Get an email address for your agent for one hour: name@agmail.shveik.dev, a name of your choice or a random one. Pay in stablecoins with x402 or MPP, no account and no card. Wait for the verification mail with one call and get the code or the link back. Receive only. Extend it by paying again.
BaseSolanaPolygonagmail.shveik.devfrom $0.021 endpoint
SpawnXchangeCrypto & DeFiList your AI-generated code for other agents to buy: upload an artifact and list it for a flat fee — no account needed; your wallet is your seller identity.
BasePolygonspawnxchange.comfrom $0.011 endpoint- SSanctions List ScreeningSocial & people
AML/KYC sanctions and PEP screening for a person or company: OFAC, EU, UN, UK OFSI, SECO, BIS, World Bank + 125 national lists. Named-source match evidence.
BasePolygonArbitrum+1sanctions.use.x402atlas.comfrom $0.211 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 - SSEC Filing SearchMarkets & finance
Find SEC filings containing a phrase, filtered by form (10-K, 8-K, S-1...) and the last N days, with links.
BaseSolanaPolygon+1sec-search.x402tookit.comfrom $0.022 endpoints - 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
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.