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ChatGPT

This guide details how to connect Instant Domain Search's MCP server to ChatGPT.

Requirements

ChatGPT connects MCP servers in developer mode, which is available on the web for Plus, Pro, Business, Enterprise, and Education plans. On Business, Enterprise, and Education plans, a workspace admin may need to allow it first. The Instant Domain Search MCP is free and needs no API key.

Developer mode is not available on the Free plan.

How It Works

Domain status comes from our search index, rebuilt daily from registry zone files and DNS observations. Checks do not make live registry queries. Uncovered extensions can have unknown status. Confirm availability with the registrar before purchase.

  • search_domains — Checks one name across many extensions. Takes a name without an extension and returns the registration status for each extension you choose, or for the popular ones by default, from an index rebuilt daily.
  • generate_domain_variations — Alternatives when your first choice is taken. Adds common prefixes and suffixes to a name and returns the .com for each, sorted by how common the added word is or by how close it is in meaning to the original.
  • check_domain_availability — Check registration status for up to 50 full domain names from the daily index. Uncovered extensions have unknown status. Results include registration links; confirm availability with the registrar before purchase.
  • search_trademarks — Search indexed USPTO trademark records with exact, prefix, fuzzy, or phonetic matches. Filter by status, class, or owner, and return up to 100 matches. Results include the snapshot freshness.
  • get_trademark_details — Look up a trademark by its eight-digit USPTO serial number. Get its status, dates, owners, classes, goods and services, filing flags, and snapshot freshness.

Setup Guide

Step 1: Turn On Developer Mode

In ChatGPT on the web, open "Settings", then "Security and login", and turn on "Developer mode".

Step 2: Create the App

Go to chatgpt.com/plugins and select the plus button. Fill in the following details:

  • Name: Instant Domain Search
  • Description: Domain availability and name ideas
  • MCP server URL: https://mcp.instantdomainsearch.com/mcp
  • Authentication: No Authentication

Create the connection. ChatGPT lists the new app under "Drafts" in your app settings.

Step 3: Start Using It

Start a new chat, choose "Developer mode" from the plus menu, and select Instant Domain Search. Then ask:

Help me find a domain name for my Brooklyn matcha cafe

Need help?

Contact our team at hello@instantdomainsearch.com.

Next Steps

Start a new conversation with the app selected and try prompts like:

  • "Find me an available .com domain for a coffee shop"
  • "Check if myawesomeidea.com is available"
  • "Generate variations of 'techstartup' that are available"