{"protocolVersion":"0.3.0","name":"Arcus Domains","description":"DNS records, domain registration and uptime checks. Everything an agent needs to reason about a domain. Live DNS records, registrar and expiry dates with an availability signal, and an HTTP check that follows redirects and reports latency and security headers. Send a data part {\"skill\": \"<id>\", \"input\": {...}}; every call is paid in USDC on Arc via x402.","url":"https://arcusnetwork.co/a2a/domains","preferredTransport":"JSONRPC","version":"1.0.0","provider":{"organization":"Arcus Labs","url":"https://arcusnetwork.co/merchants/domains"},"iconUrl":"https://arcusnetwork.co/brand/logo.png","documentationUrl":"https://arcusnetwork.co/merchants/domains","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":"dns","name":"DNS lookup","description":"Live DNS records for a hostname, with TTLs and DNSSEC status. Price: $0.001 USDC per call, settled on Arc Mainnet. Input: name (required): Hostname. type (required; one of A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, SRV): Record type.","tags":["domains","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"dns\",\"input\":{\"name\":\"arc.network\",\"type\":\"A\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"whois","name":"Domain registration","description":"Registrar, created and expiry dates, nameservers and whether the domain looks available. Price: $0.003 USDC per call, settled on Arc Mainnet. Input: domain (required): Domain.","tags":["domains","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"whois\",\"input\":{\"domain\":\"arc.network\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]},{"id":"http","name":"HTTP check","description":"Status, redirect chain, response time and security headers for any public URL. Price: $0.002 USDC per call, settled on Arc Mainnet. Input: url (required): URL.","tags":["domains","x402","usdc","arc","fixed-price"],"examples":["{\"skill\":\"http\",\"input\":{\"url\":\"https://arc.network\"}}"],"inputModes":["application/json","text/plain"],"outputModes":["application/json"]}],"erc8004":{"agentId":235,"agentRegistry":"eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"}}