CustomDomain™ — Claude Code MCP server for domains
An MCP server for finding domains, connecting one you own, and checking DNS. Useful when an app needs a domain for its customers.
claude mcp add --transport http mcp https://mcp.customdomain.ai/mcpWhat CustomDomain™ does
An agent can check domain availability and pricing, suggest available names, connect an existing domain, and retrieve the DNS records it needs. It can also identify the DNS provider and track a connection until HTTPS is live. The server exposes twenty tools through one MCP endpoint.
The service runs at https://mcp.customdomain.ai/mcp; there is no local server to install or keep running. A domain-purchase tool is included, but it is currently disabled on the hosted service. You can check options there, but you cannot complete a purchase with that tool.
What it helps with
- check a domain's availability and renewal price
- find available names from a set of keywords
- connect an owned domain and retrieve its DNS records
- identify the DNS provider before configuration
- track a domain connection through to HTTPS
Example prompts for the agent
- Check whether this domain is available and show its renewal price.
- Suggest available domain names based on these keywords: “shop” and “flowers”.
- Connect this domain and tell me which DNS records it needs.
How to install CustomDomain™
Platform CLI: remote server
claude mcp add --transport http mcp https://mcp.customdomain.ai/mcpPlatform CLI: remote server
codex mcp add customdomain --url https://mcp.customdomain.ai/mcpConfig file
{
"mcpServers": {
"customdomain": {
"url": "https://mcp.customdomain.ai/mcp"
}
}
}Config file
{
"servers": {
"customdomain": {
"type": "http",
"url": "https://mcp.customdomain.ai/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http customdomain https://mcp.customdomain.ai/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about CustomDomain™
How do I install CustomDomain™ in Claude Code?
Run claude mcp add --transport http mcp https://mcp.customdomain.ai/mcp. The server is hosted, so it does not need to run on your machine.
What does CustomDomain™ do?
It gives an agent tools to search for domains, connect an existing domain, and diagnose DNS setup. The agent can also track the connection until HTTPS is live.
Can I buy a domain through CustomDomain™?
The server includes a domain-purchase tool, but it is currently disabled on the hosted service. Availability and pricing checks are available.
