{"name":"DomainCheck","description":"Domain and email trust checks for AI agents: is this domain real and how old is it, is its email locked down, is this address disposable or undeliverable? Paid per call over x402; free preview and remote MCP.","paid":[{"methods":["GET","POST"],"path":"/v1/domain","param":"domain","price":"$0.002","network":"eip155:8453","asset":"USDC","payTo":"0x3c1A1E01e790Cd326495631B3b38Bd7068F08d6F","facilitator":"https://api.cdp.coinbase.com/platform/v2/x402","x402":["v2","v1"]},{"methods":["GET","POST"],"path":"/v1/email","param":"email","price":"$0.001","network":"eip155:8453","asset":"USDC","payTo":"0x3c1A1E01e790Cd326495631B3b38Bd7068F08d6F","facilitator":"https://api.cdp.coinbase.com/platform/v2/x402","x402":["v2","v1"]}],"free":["/health","/v1/domain/preview","/v1/email/preview","/mcp","/v1/flags","/v1/stats","/openapi.json","/.well-known/x402"],"freeTier":{"domainPreview":{"methods":["GET","POST"],"path":"/v1/domain/preview","limit":"10 requests/min per IP","returns":"DNS, MX, SPF and DMARC (no RDAP age, DKIM, MTA-STS or score)"},"emailPreview":{"methods":["GET","POST"],"path":"/v1/email/preview","limit":"10 requests/min per IP","returns":"syntax, disposable, role and free-provider flags (no DNS, no score)"},"mcp":{"method":"POST","path":"/mcp","transport":"streamable-http","tools":["check_domain","check_email"],"limit":"10 tool calls/min per IP (preview tier)"}},"data":{"dns":"DNS over HTTPS (Cloudflare 1.1.1.1, Google fallback)","registration":"RDAP via the IANA bootstrap registry","disposableDomains":8883,"engine":"domaincheck-2026.10.21"},"policy":{"storage":"inputs are not stored or logged","charging":"only HTTP 200 results are settled; invalid input and lookup timeouts are free","smtp":"no SMTP / mailbox probing"},"source":"https://agentgate-source.pages.dev/x402-domain-check/","allTools":"https://youraitools.co/built-by-us","npm":"https://www.npmjs.com/package/@agentgate-builder/domaincheck","endpoint":"https://domaincheck.agentgate.workers.dev"}