Return WHOIS-style registration data for a domain from the public RDAP service: registrar, creation, update and expiry dates, EPP status codes, nameservers and DNSSEC state.
This page documents the MCP tool findutils:whois_lookup. See the REST reference →
This tool fetches a fixed, hard-coded public upstream — never a private host. Results depend on that upstream.
Call it over MCP
Tool name findutils:whois_lookup
· no API keys · 120 requests/min per IP
Claude Code
claude mcp add findutils --transport http https://mcp.findutils.com/ Claude Desktop — claude_desktop_config.json
{
"mcpServers": {
"findutils": {
"url": "https://mcp.findutils.com/"
}
}
} Raw JSON-RPC (any MCP client) — verified example
curl -X POST https://mcp.findutils.com/ \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "whois_lookup",
"arguments": {
"domain": "example.com"
}
}
}' Input schema
| Argument | Type | Required | Description |
|---|---|---|---|
| domain | string | yes | Registered domain name, e.g. "example.com". A URL is accepted; only the hostname is used. |
Example arguments (verified)
{
"domain": "example.com"
} Also a REST endpoint
The same tool answers plain HTTP at
POST /api/tools/whois-lookup/execute — no key, 60 requests/min.
More Network tools
Cidr Calculate
Compute network / broadcast / first-last host / subnet mask / hosts count for a CIDR (e.g.
Cookie Analyzer
Analyze Set-Cookie header strings and return a per-cookie list of security issues, an overall 0-100 score, and recommendations.
Curl To Code
Returns source code that performs the same HTTP request as a cURL command, in JavaScript (fetch), Python (requests), PHP (cURL), Go (net/htt
Dns Lookup
Return the DNS records of a domain for one record type (A, AAAA, CNAME, MX, TXT, NS or SOA).
Dns Security Scanner
Return a DNS security report for a domain: SPF, DMARC, MX and CAA records with issues, a 0-100 score, a letter grade and recommendations.
Email Security Checker
Return an email-security report for the domain of an email address: MX, SPF, DKIM (common selectors), DMARC, MTA-STS, TLS-RPT and BIMI check
Har To Curl
Convert a HAR (HTTP Archive) file into curl commands, one per recorded request, and return them as a script plus a per-request list.
Http Status Code Lookup
Return the meaning, typical use case and fix for HTTP status codes.