{"protocolVersion":"0.3.0","name":"Arcus Studio","description":"Pay-per-image generation with Nano Banana and Grok. Generate and edit images with Google Nano Banana, Nano Banana Pro and xAI Grok Imagine. One flat USDC price per image, settled gaslessly on Arc mainnet — only charged when the image is delivered. Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/studio","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"Arcus Labs","url":"/studio"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/studio","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":"nano-banana","name":"Nano Banana","description":"Google · Fast Gemini image model. Great at edits and blending a reference image. Price: $0.06 USDC per call, settled on Arc Mainnet. Input: prompt (required): Prompt. aspect_ratio (required; one of 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 4:5, 5:4, 21:9): Aspect ratio. image (optional; optional · https://…): Reference image URL.","tags":["studio","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"nano-banana\",\"input\":{\"prompt\":\"A glass arc bridge over a calm sea at dawn, soft blue light\",\"aspect_ratio\":\"1:1\",\"image\":\"\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"nano-banana-pro","name":"Nano Banana Pro","description":"Google · Google's state-of-the-art model. 2K output, sharp text and fine detail. Price: $0.2 USDC per call, settled on Arc Mainnet. Input: prompt (required): Prompt. aspect_ratio (required; one of 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 4:5, 5:4, 21:9): Aspect ratio. image (optional; optional · https://…): Reference image URL.","tags":["studio","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"nano-banana-pro\",\"input\":{\"prompt\":\"A glass arc bridge over a calm sea at dawn, soft blue light\",\"aspect_ratio\":\"1:1\",\"image\":\"\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"grok-imagine","name":"Grok Imagine","description":"xAI · xAI's image model. Bold, vivid generations and quick edits. Price: $0.05 USDC per call, settled on Arc Mainnet. Input: prompt (required): Prompt. aspect_ratio (required; one of 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 2:1, 1:2): Aspect ratio. image (optional; optional · https://…): Reference image URL.","tags":["studio","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"grok-imagine\",\"input\":{\"prompt\":\"A glass arc bridge over a calm sea at dawn, soft blue light\",\"aspect_ratio\":\"1:1\",\"image\":\"\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}],"erc8004":{"agentId":233,"agentRegistry":"eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}}