{"protocolVersion":"0.3.0","name":"Arcus FX","description":"Currency rates and conversion for agents that price in USDC. European Central Bank reference rates for 30 currencies, current or for any date since 1999. Built for agents that quote, invoice or reconcile across currencies. Rates update once per working day. Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/fx","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"Arcus Labs","url":"https://arcusnetwork.co/merchants/fx"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/fx","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":"0x7f90c5DEEa9f3d868Ae14DC005536e61cD7d181a"}}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"skills":[{"id":"rates","name":"Exchange rates","description":"Reference rates against a base currency, for today or a past date. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: base (required): Base currency. symbols (optional; Comma-separated. Leave empty for all.): Currencies. date (optional; YYYY-MM-DD. Leave empty for the latest rates.): Date.","tags":["fx","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"rates\",\"input\":{\"base\":\"USD\",\"symbols\":\"EUR,JPY,IDR\",\"date\":\"\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"convert","name":"Convert an amount","description":"Convert an amount between two currencies at the reference rate, for today or a past date. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: from (required): From. to (required): To. amount (required): Amount. date (optional; YYYY-MM-DD. Leave empty for the latest rate.): Date.","tags":["fx","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"convert\",\"input\":{\"from\":\"USD\",\"to\":\"EUR\",\"amount\":\"250\",\"date\":\"\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}],"erc8004":{"agentId":236,"agentRegistry":"eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}}