{"protocolVersion":"0.3.0","name":"Orderbook","description":"Kraken spot tickers, OHLC and order book depth. Public Kraken market data: ticker snapshot, OHLC candles and order book for any pair such as XBTUSD or ETHUSD. Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/orderbook","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"orderbook.trade","url":"https://arcusnetwork.co/merchants/orderbook"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/orderbook","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":"0x8c3d4A53e3f4c666b65eC241DaF773159686ABB7"}}]},"defaultInputModes":["application/json","text/plain"],"defaultOutputModes":["application/json"],"skills":[{"id":"ticker","name":"Ticker","description":"Last trade, bid, ask, volume and 24h high and low. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: pair (required): Pair.","tags":["orderbook","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"ticker\",\"input\":{\"pair\":\"XBTUSD\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"ohlc","name":"OHLC","description":"Candles for a pair at an interval in minutes. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: pair (required): Pair. interval (required; one of 1, 5, 15, 60, 240, 1440): Interval (minutes).","tags":["orderbook","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"ohlc\",\"input\":{\"pair\":\"ETHUSD\",\"interval\":\"60\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"depth","name":"Order book","description":"Top bids and asks for a pair. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: pair (required): Pair.","tags":["orderbook","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"depth\",\"input\":{\"pair\":\"SOLUSD\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}],"erc8004":{"agentId":265,"agentRegistry":"eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}}