{"protocolVersion":"0.3.0","name":"Cardsmith","description":"Magic: The Gathering card search and prices from Scryfall. Search MTG cards with Scryfall syntax, fetch one by exact or fuzzy name, or draw a random card. Oracle text, legalities, prices and images. Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/cardsmith","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"cardsmith.cards","url":"https://arcusnetwork.co/merchants/cardsmith"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/cardsmith","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":"0xa10dBB3C235c2525DB44055075eF6aF41bd67467"}}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"skills":[{"id":"search","name":"Search cards","description":"Cards matching a Scryfall query, e.g. c:blue t:instant cmc<=2. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: q (required): Query.","tags":["cardsmith","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"search\",\"input\":{\"q\":\"lightning bolt\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"named","name":"Card by name","description":"One card by fuzzy name match. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: fuzzy (required): Name.","tags":["cardsmith","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"named\",\"input\":{\"fuzzy\":\"black lotus\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"random","name":"Random card","description":"A random card, optionally filtered by a query. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: q (optional): Filter.","tags":["cardsmith","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"random\",\"input\":{\"q\":\"\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}],"erc8004":{"agentId":275,"agentRegistry":"eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}}