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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- AA2A Nexus CanadaBuysCrypto & DeFi
CanadaBuys IT tender data
Baseapi.postulated.storefrom $0.012 endpoints - TThe Fine PrintOther services
How to cancel a subscription, or a store's return policy: steps, deadlines, fees, catches, official source and date checked.
Baseapi.howtocancel.aifrom $0.012 endpoints - AAnansi Model AdvisorAI & agents
Cheapest LLM meeting your constraints (price/context/modality) PLUS every price change and deprecation in the window. Providers publish only today's catalog and overwrite it — the change history exists nowhere else
Baseanansidata.xyzfrom $0.015 endpoints - Aallooloo.ioAI & agents
One paid call on allooloo.io for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://allooloo.io/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.
Baseallooloo.iofrom $0.011 endpoint - Aagentwholesale.vercel.appSearch & web
Search the live web for current information. Returns fresh structured organic search results with titles, URLs, snippets, domains, and ranks for agent research and retrieval.
Baseagentwholesale.vercel.appfrom $0.011 endpoint - AAgentResolverCrypto & DeFi
No-body $0.001 x402 settlement test for funded agents. Verifies the buyer wallet, facilitator, USDC payment path, and paid delivery end-to-end by returning a timestamped pong only after successful settlement.
BaseSolanaagentresolver.vercel.appfrom $0.0018 endpoints - Aagentproof-murex.vercel.appAI & agents
JSON repair for AI agents - fix malformed JSON and return structured output.
Baseagentproof-murex.vercel.appfrom $0.0012 endpoints - Aagentic-radar.aiAI & agents
One paid call on agentic-radar.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://agentic-radar.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.
Baseagentic-radar.aifrom $0.011 endpoint - AAgent Economy ReportCrypto & DeFi
Operational trust rating (AAA to D, trust line BBB) of any x402 service, as of today: tier, outlook, flags, uptime, organic paying agents, settled USDC, centrality. Sybil-resistant, computed daily from on-chain settlement on Base, Polygon, Arbitrum and Solana plus a liveness probe. Check a service before paying it. Free today-only JSON: https://agenteconomy.report/s/<host>.json
Baseagenteconomy.reportfrom $0.0052 endpoints
AgentAuditCrypto & DeFix402 services ranked by 30-day on-chain settlement volume, optionally by category.
BaseSolanaagentaudit.waltsoft.netfrom $0.011 endpoint- EEasy Reader AISearch & web
Fetch any public web page or PDF and return clean Markdown, plus title, description, author, publish date, JSON-LD and outgoing links. Built for LLM agents.
Baseagent-reader.gm-tools.workers.devfrom $0.0022 endpoints - Aagent-production-d9d8e.up.railway.appCrypto & DeFi
Verify that a Base transaction paid what you expected. Give a tx hash; get status (success/reverted/pending), confirmations, from/to, ETH value, L2 fee and every ERC-20 Transfer decoded with symbol and decimals. Optional to, token and minAmount params return verified=true/false plus the matching transfer. Live data from Base RPC. Use it before delivering goods or crediting a deposit.
Baseagent-production-d9d8e.up.railway.appfrom $0.0031 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- RReformed ConnectOther services
Fetch worship service times for one Reformed church by stable UUID. Only the schedule fields already shown on the public share page, plus name, place, timezone, and language. Base USDC, $0.01 per church.
Basereformedconnect.comfrom $0.011 endpoint - Oomniac.0000402.xyzCrypto & DeFi
Pay $0.01 USDC to ask Omniac, the Omniacs DAO mascot, any question about crypto, data science, or tech. Responses are concise by default. Powered by llama-3.3-70b via Venice.ai. Max question length: 2000 characters. Network: Base Mainnet. Each request sends one natural-language question to the model and returns one direct answer, making it useful for crypto explainers, technical Q&A, research supp
Baseomniac.0000402.xyzfrom $0.011 endpoint - Nnerfradar.comOther services
Nerf Radar: a structured summary of one official game patch (World of Warcraft: Forever (beta), World of Warcraft (Retail), Counter-Strike 2, League of Legends, VALORANT, Deadlock, Overwatch, Dota 2, Marvel Rivals, Apex Legends, Fortnite, Rainbow Six Siege and WARDOGS (early access)), with a TL;DR, who it matters to, and every change labeled buff, nerf, adjust, new, removed or fix, with before and
Basenerfradar.comfrom $0.011 endpoint - Mmargin-api-production-d413.up.railway.appOther services
Calculate required margin for collateral
Basemargin-api-production-d413.up.railway.appfrom $0.012 endpoints - AAgent Action Safety Quick GateAI & agents
AI agent action safety: one-cent deterministic preflight for every consequential agent command. Returns risk, matched rule ids, and an exact machine-readable escalation call: full DestructGuard evidence for medium risk or the complete Action Safety workflow for high and critical risk.
Basehermesplant.comfrom $0.011 endpoint - Eextract.genexxis.comSearch & web
Fetches a public web page URL and returns its main article content as clean Markdown with title, byline and excerpt; strips navigation, ads and scripts. Useful for RAG ingestion and LLM context.
Baseextract.genexxis.comfrom $0.0021 endpoint - Eexternal-fuse.onrender.comOther services
External Fuse
Baseexternal-fuse.onrender.comfrom $0.0011 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- Ccron.memoryapi.orgDeveloper tools
Retrieve change alerts for monitored URLs. Returns list of detected changes with timestamps.
Basecron.memoryapi.orgfrom $0.0011 endpoint
CostPulseOther servicesCross-region AWS price comparison. Find the cheapest region for any service in one API call.
BaseSolanacostpulse.waltsoft.netfrom $0.011 endpoint
x402 Identity HubAI & agentsCheck whether an ENS identity name for an AI agent, API or MCP server is available on x402 Identity Hub (*.402bot.eth, *.402api.eth, *.402mcp.eth). Returns availability, the mint fee and where to register.
Baseapi.x402id.devfrom $0.0011 endpoint- Xx402 HostingCrypto & DeFi
Create an upload session to deploy a new version of an existing project. Call this when publishing an update; it returns a presigned artifact upload URL. Only the project owner wallet can pay.
Baseapi.x402-hosting.comfrom $0.012 endpoints - IIBANforgeOther services
Resolve a BIC/SWIFT code (8 or 11 chars) into the underlying bank: name, country, city, LEI, and registered head-office address (where available). Use only when you already have the BIC — for IBAN inputs, prefer /v1/iban/validate which resolves the BIC for you. Production · server processing <5ms (network excluded — measure your own round trip on GET /ping) · 121,000+ BIC entries, about two thirds
Baseapi.ibanforge.comfrom $0.0032 endpoints - UUK Fuel PricesData & research
UK fuel prices per forecourt for one postcode district. Query parameter: postcode (e.g. SW1A1AA or SW1A). Returns JSON: stations, price per fuel type (E10, B7...), timestamps. Source: GOV.UK Fuel Finder. Contains public sector information licensed under the Open Government Licence v3.0. Independent; not an official government service, not endorsed by GOV.UK. Prices as published, expected pence per
Baseapi-live.ukfuelprice.workers.devfrom $0.011 endpoint - Eeffectguard-x402-experiment.onrender.comAI & agents
Coordinate agents sharing one account: reuse matching JSON reads within 30 seconds, or stop duplicate operations using a stable business event ID. Enroll once at /v1/enroll, then authenticate paid calls with your Bearer key. After EXECUTE use /v1/start and /v1/commit around your own tool. Same-request payment recovery is free. Integration and cost measurement: /agent. External execution is not gua
Baseeffectguard-x402-experiment.onrender.comfrom $0.011 endpoint - Ddead-dropCrypto & DeFi
Store the request body under {key} in box {box} (a box_ id, a channel name, or "me" for your wallet's box). Query ttl=seconds (60 to 604800, default 3600). Body up to 65536 bytes. Returns the stored item with its box id, which free GET /box/{box}/{key} reads need.
Basedead-drop.chris15118-4cd.workers.devfrom $0.0021 endpoint - Ccoffee.rdxdata.xyzMarkets & finance
Global coffee and soft commodities feed: Arabica, Robusta, cocoa, sugar, cotton and orange juice futures with the Arabica-Robusta spread and rule-based market signals.
Basecoffee.rdxdata.xyzfrom $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.