Connect Warplet to ChatGPT

How to add your Warplet MCP URL as a remote connector to ChatGPT using Developer Mode.

You can connect your local MCP servers to ChatGPT through Warplet, making them available across all ChatGPT platforms (Desktop, Mobile, Web). ChatGPT supports custom MCP servers through its Developer Mode connector settings.

Before you start, make sure Warplet is running and connected. The app lists one URL per MCP server under Use these URLs to connect your favorite LLM. Each URL routes to a specific MCP server: the DEVONthink URL routes to the DEVONthink MCP server, the Beeper URL to the Beeper MCP server, and so on. Copy the URL for the server you want to connect.

The Warplet app showing connection details and per-server URLs

Follow these steps:

  1. Navigate to your ChatGPT connector settings page: https://chatgpt.com/#settings/Connectors.

  2. Click Advanced Settings.

  3. Toggle Developer Mode in https://chatgpt.com/#settings/Connectors/Advanced.

  4. Click Create to create a new MCP server.

  5. A form will appear. Fill it out with the following details:

    • Name: Warplet (or the name of the app you're exposing)
    • Server URL: your Warplet MCP URL, copied from the app
    • Authentication: OAuth
    • Toggle: I trust this application
  6. Click Create to save the new MCP server connection.

  7. ChatGPT will take you through the authorization flow. When the Warplet authorization page appears, paste the bearer token shown in the Warplet app and approve.

Once connected, enable Developer Mode in a new chat to use your connector. You can then ask ChatGPT to use your local tools directly in the conversation.