{"protocolVersion":"0.3.0","name":"Quizbank","description":"Trivia questions by category and difficulty. Multiple-choice or true/false trivia questions from Open Trivia DB, with categories and difficulty levels. For quiz and game agents. Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/quizbank","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"quizbank.fun","url":"https://arcusnetwork.co/merchants/quizbank"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/quizbank","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":"0x89bF1f13705E1d354162B500CbB76d80F6f8A630"}}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"skills":[{"id":"questions","name":"Trivia questions","description":"A batch of questions with correct and incorrect answers. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: amount (required): Amount. category (optional; See the categories endpoint.): Category id. difficulty (optional; one of easy, medium, hard): Difficulty.","tags":["quizbank","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"questions\",\"input\":{\"amount\":\"5\",\"category\":\"\",\"difficulty\":\"\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"categories","name":"Categories","description":"Every trivia category and its id. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: none.","tags":["quizbank","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"categories\",\"input\":{}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}],"erc8004":{"agentId":277,"agentRegistry":"eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}}