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rdap-mcp

rdap-mcp

by simplebytes-com
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Hybrid

RDAP MCP Server

A simple Model Context Protocol (MCP) server that provides RDAP (Registration Data Access Protocol) domain lookup capabilities.

Features

  • Pure RDAP: Uses the modern RDAP protocol for structured domain data

  • Registry Detection: Automatically detects the correct RDAP server for any TLD

  • Comprehensive Coverage: Supports 50+ TLDs including gTLDs and ccTLDs

  • Lightweight: Minimal dependencies, RDAP-only (no WHOIS fallback)

  • Easy Integration: Works with any MCP-compatible client

Related MCP server: dns-intel

Installation

npm install rdap-mcp

Or use directly with npx:

npx rdap-mcp

Usage

Option 1: Local Installation (Recommended)

Add to your Claude Desktop configuration file:

MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json

Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "rdap": {
      "command": "npx",
      "args": ["-y", "rdap-mcp"]
    }
  }
}

Option 2: Hosted Version

This server is also available as a hosted service at mcp.domaindetails.com for HTTP-based integrations:

GET https://mcp.domaindetails.com/lookup/{domain}
POST https://mcp.domaindetails.com/mcp/call-tool

The hosted version runs on Cloudflare Workers for global low-latency access. Use the local version for Claude Desktop and the hosted version for custom HTTP integrations.

Available Tools

rdap_lookup

Look up domain information using the RDAP protocol.

Parameters:

  • domain (string, required): The domain name to look up (e.g., example.com)

  • include_raw (boolean, optional): If true, include raw RDAP response data

Example Response:

{
  "domain": "example.com",
  "found": true,
  "method": "rdap",
  "timestamp": "2025-01-21T10:30:00Z",
  "status": ["client transfer prohibited"],
  "nameservers": ["ns1.example.com", "ns2.example.com"],
  "rdap": {
    "registration_date": "1995-08-14T04:00:00Z",
    "expiration_date": "2025-08-13T04:00:00Z",
    "contacts": [...],
    "dnssec": {...}
  }
}

Supported TLDs

The server includes built-in registry detection for 50+ TLDs:

Generic TLDs: com, net, org, info, biz, name, pro, xyz, top, site, online, tech, store, app, dev, io, ai, co, me, tv, cc

Country Code TLDs: uk, ca, au, de, fr, nl, be, ch, at, it, es, se, no, dk, fi, ie, pl, cz, sk, hu, ro, bg, hr, si, lv, lt, ee

For unsupported TLDs, the server will attempt to fetch registry information from IANA's bootstrap service.

Development

# Clone repository
git clone https://github.com/simplebytes-com/rdap-mcp.git
cd rdap-mcp

# Install dependencies
npm install

# Build
npm run build

# Test locally
node build/index.js

License

MIT

Related Projects

Available Tools

1 tool
rdap_lookupA

Look up domain information using the RDAP (Registration Data Access Protocol). Provides structured domain registration details, nameservers, contacts, and status information.

Inputs: domain (required), include_raw.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    Deploy Server
    One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

    TDQS

    A4.2/5.0

    Scored across 1 tool

    Disambiguation5/5

    Only one tool exists, so there is no ambiguity whatsoever.

    Naming Consistency5/5

    The single tool follows a clear verb_noun convention (rdap_lookup), which is consistent.

    Tool Count5/5

    For a focused domain lookup server, one tool is appropriate and well-scoped.

    Completeness5/5

    The single tool fully covers the server's purpose of performing RDAP lookups; no gaps exist.

    Maintenance

    ActivityInactive
    ResponsivenessOutdated data

    Resources

    Related MCP Connectors

    Related MCP Servers

    • domain-rdap-mcp

      Lulu-The-Narwhal
      A
      license
      A
      quality
      D
      maintenance
      Enables real-time domain registration lookups via RDAP, including availability, expiration, and registrar details, with no API key required. Supports natural language queries like 'is example.com available?' or 'when does example.com expire?'.
      1
      MIT