Domain Checker

Provides fast domain availability checks by combining DNS with RDAP/WHOIS verification for bulk and parallel use in MCP clients.

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4 months ago

First Indexed

2 months ago

Catalog Refreshed

Documentation & install

Readme and setup notes from the catalogue, plus a client-ready config you can copy for your MCP host.

Installation

Add the following to your MCP client configuration file.

Configuration

View docs

{
  "mcpServers": {
    "wearebravelabs-domain-checker-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@wearebravelabs/domain-checker-mcp"
      ]
    }
  }
}

You can run domain availability checks for multiple domains directly from your MCP client using the Domain Checker MCP Server. It combines fast DNS lookups with RDAP/WHOIS verification to deliver quick, accurate results for bulk domain checks across many TLDs.

How to use

Use this MCP server to perform domain availability checks from your client. The server supports three core tools: check_domains for DNS plus WHOIS verification of specific domains, check_names to expand base names across popular TLDs, and check_domains_quick for DNS-only checks when speed is paramount. You can filter results to show only available domains, only taken domains, or all results. The process blends speed and accuracy by first performing a fast DNS check and then validating candidates with RDAP (with WHOIS as a fallback). When you need results across many domains, run checks in parallel batches to maximize throughput.

How to install

npm install -g @wearebravelabs/domain-checker-mcp

Configuration

Configure your MCP client to load the Domain Checker MCP Server as a standard MCP backend. You can set it up through the client’s MCP configuration options as shown.

{
  "mcpServers": {
    "domain-checker": {
      "command": "npx",
      "args": ["-y", "@wearebravelabs/domain-checker-mcp"]
    }
  }
}

Examples of usage

Check multiple specific domains with full verification and a filter to show only available domains.

check_domains({
  domains: ["myapp.com", "myapp.io", "myapp.dev"]
})

check_domains({
  domains: ["example.com", "randomname123.com"],
  filter: "available"
})

Additional notes

RDAP servers are loaded dynamically from the IANA bootstrap registry to keep verifications up to date. If you need speed over accuracy in a rush, you can use the quick DNS-only check as a fallback, but be aware it may produce false positives for available domains.

Tools

The MCP server exposes three primary tools to perform domain checks.

Tool details

Check multiple domains with full verification
Filter results to show available or taken domains or both
Check a base name against multiple TLDs
Specify particular TLDs and apply filters
Perform DNS lookups rapidly
Note potential false positives for availability

Available tools

check_domains

Check specific domains for availability with full DNS plus WHOIS verification.

check_names

Check base names across popular TLDs automatically.

check_domains_quick

Fast DNS-only check without WHOIS verification.