Tlders MCP Server

TLDers Domain Prices — MCP server

Live domain prices from 145+ registrars and 1,100+ TLDs, as a remote Model Context Protocol server. Ask your AI assistant where a domain is cheapest to register, renew or transfer, compare extensions, find promo codes and check availability — with real, daily-updated prices from TLDers.

Use it two ways: connect to the hosted server at https://www.tlders.com/api/mcp, or run this repository's small local (stdio) server, which forwards each tool call to the hosted one with your key.

Connect

1. Get a free API key at https://www.tlders.com/developers (no card needed).
2. Add a remote MCP server (Streamable HTTP):

Claude Code:

claude mcp add --transport http tlders https://www.tlders.com/api/mcp \
  --header "Authorization: Bearer tld_live_..."

Treat a URL with ?key= like a password. If it leaks, revoke the key from your TLDers account and create a new one.

Local (stdio) server

For Claude Desktop's config file and other clients that run local servers. Needs Node.js 18+.

{
  "mcpServers": {
    "tlders": {
      "command": "npx",
      "args": ["-y", "@tlders/mcp"],
      "env": { "TLDERS_API_KEY": "tld_live_..." }
    }
  }
}

To run the server from source instead of the published package (useful while changing it), clone this repo, run npm install, then use "command": "node", "args": ["/path/to/tlders-mcp/index.js"]. It reads the same TLDERS_API_KEY variable, and TLDERS_MCP_URL overrides the hosted endpoint.

Plugin install

This repo is also an Agent Plugins package (plugin.json + mcp.json) that connects to the hosted server. Once installed, add your key by passing it as the api_key argument or switching the server URL to https://www.tlders.com/api/mcp?key=tld_live_....

Tools

Prices are USD per year. First-year prices are often promotions, so the renewal price is always included.

Example prompts

• "Where is a .com cheapest to register and to renew?"
• "Compare .io, .ai and .dev prices over three years."
• "Is my-startup.dev available, and which registrar should I buy it from?"
• "Are there any promo codes for .xyz right now?"

Plans

Full API docs and the OpenAPI spec: https://www.tlders.com/developers

Support

advertise@tlders.com