Stablecoin Gateways

WHOIS RDAP Domain Lookup

whois

Read-onlyIdempotent

WHOIS / RDAP domain lookup: give a domain, get registrar, registration (creation), expiry and last-updated dates, status codes and nameservers from the registry's RDAP service, plus DNS records and SPF/DMARC/DKIM email-auth posture. Use to check a domain's age, registrar or expiry before trusting a merchant, vendor or counterparty. No personal data. Signed receipt. Price: $0.003 per call via x402 (USDC on Base or XRP on XRPL). Example arguments: {"domain":"example.com"}.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`domain`	Yes	Registrable domain or full hostname

Output Schema

TableJSON Schema

Name	Required	Description	Default
`data`	No	Registry RDAP registrar, creation/expiry/update dates, status and nameservers, plus DNS and email-auth facts
`receipt`	No	Ed25519-signed, hash-chained receipt; verify free with the verify_receipt tool or POST /v1/verify-receipt

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 22, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "description": "Paid result: { data, receipt }. Unpaid calls return an x402 PaymentRequired object instead (isError: true).",
+  "properties": {
+    "data": {
+      "description": "Registry RDAP registrar, creation/expiry/update dates, status and nameservers, plus DNS and email-auth facts",
+      "properties": {
+        "checked_at": {},
+        "dns": {},
+        "domain": {},
+        "exists": {},
+        "https": {},
+        "mail_auth": {},
+        "notes": {},
+        "rdap": {},
+        "sources": {}
+      }
+    },
+    "receipt": {
+      "description": "Ed25519-signed, hash-chained receipt; verify free with the verify_receipt tool or POST /v1/verify-receipt"
+    }
+  },
+  "type": "object"
+}

First observedOct 22, 2026

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