RDAP API MCP Server: Install & Setup

Install RDAP API in Claude Code

Claude Code

claude mcp add --transport http rdap-api https://rdapapi.io/mcp/rdap

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "rdap-api": {
      "url": "https://rdapapi.io/mcp/rdap"
    }
  }
}

Frequently asked questions

What does the RDAP API MCP server do?

Normalized JSON for any domain across 1,200+ TLDs, reading WHOIS where no RDAP server exists.

Is the RDAP API MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does RDAP API run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add RDAP API to Claude Code?

Run: claude mcp add --transport http rdap-api https://rdapapi.io/mcp/rdap

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