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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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54 results- TteitenCrypto & DeFi
Returns the rows of one metric at one grain and dimension, optionally bounded by period, with what its rows are counted in and the scope notes the site publishes for it. Free for any dataset and grain the public site publishes; priced at its tier otherwise, and catalog lists every tier's price. Keys are the categorical dimensions catalog lists for the dataset, never a named entity; where a dataset
Base Sepoliateiten-mcp-staging.teiten-web.workers.devfrom $0.012 endpoints - PPeople's CourtSocial & people
Deterministic dispute-readiness report with supported lane, composition, published filing-fee quote, consent and evidence requirements, corpus compatibility, and timing warnings. No case is filed and no merits are assessed.
Base SepoliaBasepeoplescourt.aifrom $0.011 endpoint
Verify deliverable, code onlyAI & agentsVerify output another AI agent hands back, by code alone, for $0.005: no model call, answers in about a second. Recomputes the deliverable's written sums, totals, percentages, dates, weekdays, time spans, unit conversions, and list counts; checks lengths the task asks for; flags placeholders and prompt injection; measures words, items, and JSON shape. Signed receipt, tier lite. For every requireme
BaseBase Sepoliacrosscheckapi.comfrom $0.0051 endpoint- Xx402-ai-starter.vercel.appAI & agents
Access to protected content
Base Sepoliax402-ai-starter.vercel.appfrom $0.0051 endpoint - Nnickeljoke.vercel.appAI & agents
Premium AI joke generation
Base Sepolianickeljoke.vercel.appfrom $0.0051 endpoint - AAcme Listings (demo)AI & agents
Demo of Stilebase pay-per-page for AI agents: rental listings in Springfield with price, bedrooms and what's special about each home. Test USDC on Base Sepolia.
Base Sepoliademo.stilebase.comfrom $0.011 endpoint - TThe Tie Stablecoin IntelligenceCrypto & DeFi
Retrieve a seven-day USD-denominated report of Tether bridge flows on Ethereum. This is a bounded onchain stablecoin intelligence product backed by The Tie's data API.
Base Sepoliax402-stablecoin-data-demo.ryan-ee4.workers.devfrom $0.011 endpoint - PPlot SupermarketSearch & web
Search published UK auction property listings. Omit q for latest active listings. Public source facts only; not a research report.
Base Sepoliaplotsupermarket.co.ukfrom $0.012 endpoints - Iismec-agent-tools.ismec.workers.devAI & agents
損益分岐点売上高・限界利益率・安全余裕率・目標利益達成売上高を、式の過程・前提つきで返す
Base Sepoliaismec-agent-tools.ismec.workers.devfrom $0.012 endpoints - Aapi.sandbox.brickken.comAI & agents
Prepare ERC-8004 agent registration. Prepare an unsigned ERC-8004 agent registration transaction.
Base Sepoliaapi.sandbox.brickken.comfrom $0.0051 endpoint - Xx402 PreflightOther services
Payability preflight: audits an x402 seller's 402 challenge
Base Sepoliax402.nodeventures.iofrom $0.0051 endpoint
url2mdSearch & webPDFs, JavaScript pages and ordinary HTML as clean Markdown. Pays a page's x402 toll for you. Follows robots.txt.
Base Sepoliaurl2md-testnet.url2md.workers.devfrom $0.0051 endpoint- Qquickly-techrepublic-modified-fate.trycloudflare.comSocial & people
Returns an indicative foreign-exchange mid rate for a currency pair such as usd-eur. Test endpoint (persona-agt1-d-bank-ai-prod) on Base Sepolia.
Base Sepoliaquickly-techrepublic-modified-fate.trycloudflare.comfrom $0.0011 endpoint - IImport PreflightOther services
Validate a Shopify product CSV before import and detect structural and Shopify-specific import problems. Also supports generic CSV structural validation.
Base Sepoliaimport-preflight-development.import-preflight-4618bf7e.workers.devfrom $0.0051 endpoint - EExuviaSearch & web
Exuvia: buy an already-solved answer instead of re-deriving it. Find answer ids for free at GET /search?q=<question>. Payment goes directly to the seller.
Base Sepoliaexuvia.marketfrom $0.011 endpoint - Aapi.niftibot.comSocial & people
UK Companies House Filing Monitor (Testnet): Company profile and compliance verdict
Base Sepoliaapi.niftibot.comfrom $0.011 endpoint - Aapi.agentincome.devAI & agents
AI text summarization
Base Sepoliaapi.agentincome.devfrom $0.011 endpoint - Xx402-agent-apiAI & agents
Example premium technology research report
Base Sepoliax402-agent-api-p7pe.onrender.comfrom $0.011 endpoint
WITANData & researchFull knowledge unit content (query param: id). Digital content, delivered in full on payment: it cannot be withdrawn once delivered unless it differs from its listing (WITAN terms, section 4).
Base Sepoliawitan.marketsfrom $0.011 endpoint- 33HZ Global Weather ForecastData & research
Global weather forecast for latitude and longitude. Returns the forecast valid now, all available hourly forecast points, and the extended forecast in native 6-hour periods without inventing hourly precision. Data source: MET Norway Locationforecast 2.0.
Base Sepoliawallet-services-poc-clean.3hz-services.workers.devfrom $0.0011 endpoint - Tthepocketoperator.comAI & agents
One Regelkartan pitfall row by id (GDPR, AI Act, ISO): rule, law, wrong, right; en + sv. Same data is free at thepocketoperator.com/pitfalls.json; you pay for the per-row API
Base Sepoliathepocketoperator.comfrom $0.0011 endpoint - PPickleCheckOther services
PickleCheck endpoint check: is it safe to pay this x402 endpoint? (looks, never pays; unreachable/bad input are not charged)
Base Sepoliapicklecheck-test.onrender.comfrom $0.0051 endpoint - Ppharos-payments-staging.small-paper-02ac.workers.devOther services
One English offset-printing review reference: job records, material questions, registration and sample checks, process limits and provenance. Fixed editorial snapshot; no inspection or production authorization.
Base Sepoliapharos-payments-staging.small-paper-02ac.workers.devfrom $0.011 endpoint - Aapi.k8s-dev.blockscout.comCrypto & DeFi
Access to api/v2/transactions. List blockchain transactions with filtering options for status, type, and method
EVM chain 11142220EVM chain 5042002Base Sepoliaapi.k8s-dev.blockscout.comfrom $0.0021 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.