Hi, I am trying to use my custom anthropic API for simple chat from the right panel but it keeps showing me “Composer relies on custom models that cannot be billed to an API key. Please disable API keys and use a Pro or Business subscription.” I have tried to disable any thing related to Composer …

Hey, This is fixed is in v0.43.1, which should be available to you very soon! Sorry about that.

Hi @danperks ! I am trying to use Anthropic API key while on version 0.44.11… Observing the same error message. Do you know if this is expected/by design? Cheers!

Hey, are you seeing this in the chat, or the composer?

Hey, we’ve rolled back v0.45.1 due to this error, can you redownload the latest version from cursor.com , as that will resolve this for now, until v0.45.x is stable.

Hi @danperks ! Yes the issue was observed in the chat… I’ve just downloaded and deployed latest package - I can confirm that it seems as if my earlier chat issue has been resolved. Cheers!

Unable to use custom API key after 0.43 update

Support Bug Reports

tyler-romero (Tyler Romero) January 23, 2025, 5:50pm 6

I’m on v0.45.1 and I’m still seeing this issue while using chat (not composer):

Topic		Replies	Views
Unable to use custom API key after 0.46.3 update Bug Reports	6	654	March 26, 2025
Chat no longer works with API keys with v0.46 Bug Reports	4	240	March 27, 2025
Chat says cursor pro required Bug Reports	11	1389	February 7, 2025
Error eventhough am using chat: Composer relies on custom models that cannot be billed to an API key. Please disable API keys and use a Pro or Business subscription Help	2	2461	February 5, 2025
Composer relies on custom models that cannot be billed to an API key. Please disable API keys and use a Pro or Business subscription Bug Reports	3	626	February 13, 2025

Unable to use custom API key after 0.43 update

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