Domain MCP server

Add Unique Domains to an AI assistant as tools, through MCP (the Model Context Protocol): a name’s stored status and registry record, an ending’s facts and launch dates, registrar prices and their changes, the sales market as totals, the day’s auctions, trends and the industry agenda. Every tool reads the same data as the API.

Hosted at https://mcp.unique.domains/mcp: no key, no sign-in and nothing to install, with the API’s free tools, apart from the three that answer one word or one ending a caller a day (a word’s sales, a word’s market, an ending’s registrar prices) and two that add nothing a conversation needs (a second way to look a name up, how current each part of the data is), which run on your machine.
On your machine, a member key in UD_API_KEY adds the paid tools of its plan, Founder or Investor.
The free tools read stored data. None registers, buys or changes a name.

Add it to your assistant

https://mcp.unique.domains/mcp

claude mcp add --transport http uniquedomains https://mcp.unique.domains/mcp

{
  "mcpServers": { "uniquedomains": { "url": "https://mcp.unique.domains/mcp" } }
}

code --add-mcp '{"name":"uniquedomains","type":"http","url":"https://mcp.unique.domains/mcp"}'

https://mcp.unique.domains/mcp

{
  "mcpServers": {
    "uniquedomains": {
      "command": "npx", "args": ["-y", "@uniquedomains/mcp-server"],
      "env": { "UD_API_KEY": "ud_live_your_key" }
    }
  }
}

In Claude, on the web or the desktop app, open Customize, then Connectors, choose "+ Add", then "Add custom connector", and paste this address. No sign-in is needed. On a Team or Enterprise plan, an Owner adds it first.

Try asking

What is the registry record of get.plumbing?
What are the newest registrar price changes?
What is on the domain industry agenda this month?

Ways to call it

@uniquedomains/mcp-servernpx -y @uniquedomains/mcp-serverIn the official MCP Registry as domains.unique/mcp-server.Source on GitHub

Member keyThe Founder and Investor plans include a key of their own.Compare the two plans

Domain MCP server questions

Contact me

Does the MCP server need a key?

No. The hosted server answers with no key and no sign-in, with the API’s free tools, apart from the three that answer one word or one ending a caller a day (a word’s sales, a word’s market, an ending’s registrarRegistrarThe company you buy and renew a domain through, such as Namecheap or GoDaddy. It does not own the name, it only registers it for you.Read the definition prices) and two that add nothing a conversation needs (a second way to look a name up, how current each part of the data is), which run on your machine. On your machine, a member key in UD_API_KEY adds the paid tools of its plan, Founder or Investor.

Can the assistant change anything?

The free tools only read stored data: none registers, buys or changes a name. With a member key, a live check reads a name from its registryRegistryThe organisation that runs an ending, like the company behind .com. It sets the rules and the price registrars pay.Read the definition now, and with an Investor key an appraisal values a name and a word intake asks for a word to be added to the catalog. Each can count one unit of the plan, only when the read or the model runs.

Why does a tool say the day’s calls are spent?

The hosted server calls the API as one caller for every assistant that uses it, under one daily allowance. When it is spent, the tool says so and when it resets, at midnight UTC. The server on your machine calls the API from your own address, within 60 calls an hour and 100 a day from one address.