{"protocolVersion":"0.3.0","name":"A2A probe","description":"probe tagline probe description twenty chars ok Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/a2aprobes349","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"Probe Labs","url":"https://example.com"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/a2aprobes349","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":"0x5419fc445476688fe8440b36dd7b3d2dfb2fe0af"}}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"skills":[{"id":"probe-ep","name":"Probe EP","description":"probe endpoint description twenty chars Price: $0.001 USDC per call, settled on Arc Mainnet. Input: none.","tags":["a2aprobes349","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"probe-ep\",\"input\":{}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}]}