{"protocolVersion":"0.3.0","name":"Agent402","description":"Pay-per-call web tools for autonomous agents: 625 priced endpoints settled in stablecoins (USDC, or USDG on Robinhood Chain) over x402 or MPP, free via proof of work for the pure-CPU tools, and finished reports 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"]}]}