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# Frequent 500 errors when using v0 API - context size limitation?

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Chjgreen 6181 (@chjgreen-6181) · 2025-06-11

**Problem:​**​
I'm integrating v0 API and Cursor into my project, but keep getting this error:



```
Request failed with status code 500: {"success":false,"error":"Unknown error"}
```

I suspect server-side limitations like:

* Max context window size
* Max output context size

When I ask simple questions like "Who are you?", it answers "V0" correctly, proving my API-key configuration works. This suggests server-side context limits are the issue.

Following your docs (Vercel v0 API Usage Limits), I emailed support@v0.dev to request higher limits, but your email system automatically rejected it.

Current limits make it impossible to use Cursor for programming in existing projects.

​**Questions:​**​

1. Can these limits be increased?

I need a reply from actual staff, not bots.