Is it possible to use Cursor with our APIs from open-source LLMs like GLM 4.5, Qwen3, etc? If not, can you guys suggest an alternative, please?

Hey, could it be that the API key is incorrect? If you previously had a different API key for OpenAI, try re-entering the key and clicking verify.

No, it kind of works now with the same API, but I’m getting a new error after each completed prompt, see attached. [Screenshot 2025-08-05 at 14.23.17] UPDATE: it throws this error only when editing files. If we’re just chatting, it works like a charm. As soon as it edits a line of code, that er…

Here’s a collection of the errors we get while using our API. The “solution” is ‘please continue’, and it continues to work. Wonder if you can have a look at Cursor and stop these unnecessary messages from popping up? [Screenshot 2025-08-05 at 14.33.45] [Screenshot 2025-08-05 at 15.31.08] [Scr…

Thanks for the info, we’ll look into it.

Bumping this, I also had the same issue trying to use Qwen 3 and K2

Hello good evening I use my API key in roo open router but within the course it does not work, in fact no model works there since version 1.3.0 this broke and has not been resolved until now

CURSOR requires pro plan to use agent mode for any other open source models, RIGHT?

Correct. Cursor requires Pro plan to use 3rd party APIs.

Yearly Pro plan here. No API is working anymore - see the errors above @condor @deanrie

Unfortunately, the developers do not provide open source models, and the API models do not work. It seems that they are purposefully forcing users to use Claude. Although I like Cursor, their pricing policy makes me look for alternatives.

Use Cursor with Open-source LLMs

Support Help

Pasavee_Jaipain (Pasavee Jaipain) August 11, 2025, 4:40am 34

we r the same

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Use Cursor with Open-source LLMs

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