{"protocolVersion":"0.3.0","name":"Agent402","description":"Pay-per-call web tools for autonomous agents: 609 priced endpoints settled in USDC over x402 or MPP, free via proof of work, or prepaid by card. No account and no API key. The same catalog is callable over MCP at https://agent402.tools/mcp and documented at https://agent402.tools/openapi.json.","url":"https://agent402.tools/api","preferredTransport":"HTTP+JSON","version":"2.1.0","documentationUrl":"https://agent402.tools/docs","provider":{"organization":"Havok Holdings LLC","url":"https://agent402.tools"},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"skills":[{"id":"catalog-find","name":"Find a tool for a task","description":"Resolve a plain-language task to a callable endpoint with its price and input schema. Free.","tags":["discovery","search","catalog","routing"]},{"id":"route-execute","name":"Route and execute a paid call","description":"Resolve a task, buy the result from the seller over x402, and sell it to the caller with a receipt.","tags":["routing","x402","payments","execution"]},{"id":"llm-gateway","name":"Model calls priced per request","description":"OpenAI, Anthropic Messages and Responses wires over one endpoint, quoted per request and settled at actual usage.","tags":["llm","inference","gateway","metered"]},{"id":"research-reports","name":"Finished research and diligence reports","description":"Company, filing, fund, token and domain reports returned as finished documents with cited sources.","tags":["research","reports","filings","diligence"]},{"id":"x402-index","name":"The x402 seller index","description":"Who sells what across the x402 ecosystem, with settlement evidence and router eligibility per seller.","tags":["x402","index","sellers","marketplace"]}]}