{"protocolVersion":"0.3.0","name":"Quakewatch","description":"Recent earthquakes worldwide from USGS. Earthquakes above a magnitude threshold in a time window, with location, depth and USGS links. GeoJSON from the USGS feed. Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/quakewatch","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"quakewatch.live","url":"https://arcusnetwork.co/merchants/quakewatch"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/quakewatch","capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":[{"uri":"https://github.com/google-agentic-commerce/a2a-x402/blob/main/spec/v0.2","description":"Pay per call with x402 in USDC on Arc Mainnet. Settled gaslessly by the Arcus facilitator.","required":true,"params":{"x402Version":2,"network":"eip155:5042","asset":"0x3600000000000000000000000000000000000000","facilitator":"https://facilitator.arcusnetwork.co","payTo":"0x41dDA4C151Fa9907A861149641D75AB4D88d7037"}}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"skills":[{"id":"recent","name":"Recent earthquakes","description":"Events since a start date at or above a minimum magnitude, newest first. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: starttime (required): Start date. minmagnitude (required): Minimum magnitude.","tags":["quakewatch","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"recent\",\"input\":{\"starttime\":\"2026-09-20\",\"minmagnitude\":\"5\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}],"erc8004":{"agentId":244,"agentRegistry":"eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}}