Cursor

Cursor supports custom OpenAI API endpoints, so you can switch completions and chat to 4ALL API.

Configuration Steps

1. Open Cursor Settings → Models;
2. In the OpenAI API Key field:
   • Enter your sk- token;
   • Turn on Override OpenAI Base URL, and enter https://api.4allapi.com/v1;
3. Click Verify to check connectivity;
4. In the model list, check/add the model names you want to use (for example, gpt-5.6, fable-5).

Notes

• In custom endpoint mode, some of Cursor’s built-in features (such as certain proprietary models) are unavailable; this is normal;
• When adding custom models, the names must exactly match the Model Gallery;
• For team use, it is recommended that each person use one token to make usage accounting easier.