tldx

Level ALocal

Bulk domain availability checking via RDAP, DNS, and WHOIS, with prefix/suffix permutations, regex patterns, MCP, and multiple output formats

Overview

tldx is a fast bulk domain availability checker that queries RDAP, DNS, and WHOIS concurrently. It supports prefix/suffix permutations, regex-based combinations, built-in and custom TLD presets, and streams results as text, JSON, CSV, and other formats. It can also detect taken domains advertised for sale via RFC 10023, and ships an MCP server for AI agents.

⭐ 1.9kSearch & InfoGoRepo ↗Updated 2026-10-27

Installation

MCP client config (paste into mcp.json)

{
  "mcpServers": {
    "brandonyoungdev-tldx": {
      "command": "tldx",
      "args": [
        "mcp"
      ]
    }
  }
}

Agent install prompt

Copy and paste into Cursor / Claude / other agents to install this MCP for you

Please read this MCP repository and install it into my current environment:
https://github.com/brandonyoungdev/tldx

Known working client config (can write into mcp.json):
{
  "mcpServers": {
    "brandonyoungdev-tldx": {
      "command": "tldx",
      "args": [
        "mcp"
      ]
    }
  }
}

Please: 1) check README for deps and env vars; 2) write config for my client; 3) if secrets are missing, tell me what to fill — do not invent values.

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