{"protocolVersion":"0.3.0","name":"Cat Facts Demo","description":"A random cat fact for $0.001. The x402 hello world. Demo listing created from the merchant dashboard. Each call returns one random cat fact and settles a gasless USDC payment on Arc Mainnet. Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/cat-facts-demo","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"Arcus Demo","url":"https://arcusnetwork.co/merchants/cat-facts-demo"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/cat-facts-demo","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":"0xe074bf7f0aa27642059e6fcc40688b61d8265b49"}}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"skills":[{"id":"random-cat-fact","name":"Random cat fact","description":"One random cat fact per call. The classic x402 hello world. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: none.","tags":["cat-facts-demo","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"random-cat-fact\",\"input\":{}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}],"erc8004":{"agentId":287,"agentRegistry":"eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}}