# ChatGPT

Custom connectors in ChatGPT use the same OAuth flow.

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## Setup

1.  1
    
    Open Settings → Connectors (Developer mode must be on for custom connectors on some plans).
    
2.  2
    
    Choose Create and paste the server URL. Leave authentication on OAuth.
    
    **MCP server URL**
    
    ```
    https://api.zomler.com/mcp
    ```
    
3.  3
    
    Approve the connection in the browser tab ChatGPT opens.
    
4.  4
    
    Enable Zomler in a chat from the tools menu. Deep Research and agent mode can use it too.
    

## What you get

One tool per platform, plus `capabilities` and `check_balance`, at `https://api.zomler.com/mcp`. Every answer is [the envelope](https://zomler.com/docs/api/responses): what was measured, when, what was left out and why, and what it cost. Fresh fetches spend [credits](https://zomler.com/docs/api/credits); anything already held is free.

The connection appears under [Connections](https://app.zomler.com/connections) in the dashboard, with when it was last used. Disconnecting stops it immediately.

[All clients](https://zomler.com/docs/mcp)

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Source: https://zomler.com/docs/mcp/chatgpt