### Check for existing issues

- [x] I have searched the existing issues and checked that my issue is not a duplicate.

### What happened?

## `/cursor/chat/completions` returns 200 and provider is charged, but no LiteLLM SpendLogs / Logs UI entry is created

I configured Cursor IDE according to the official LiteLLM Cursor integration docs:

https://docs.litellm.ai/docs/tutorials/cursor_integration

Cursor Base URL:

```text https://example.com/cursor ````

With this setup, Cursor sends requests to:

```text POST /cursor/chat/completions ```

The request succeeds and LiteLLM returns HTTP 200. The upstream provider also shows usage/cost, but LiteLLM Logs UI / SpendLogs does not show any corresponding record.

Example LiteLLM access log:

```text INFO 52.44.113.131:55762 - "POST /cursor/chat/completions HTTP/1.1" 200 | timestamp=2026-06-10T21:15:20.332082 component=uvicorn.access logger=h11_impl.py:473 ```

A/B test:

* `https://example.com/v1` → `POST /v1/chat/completions` → LiteLLM logs are created normally * `https://example.com/cursor` → `POST /cursor/chat/completions` → provider is charged, but no LiteLLM log is created

LiteLLM version:

```text 1.88.1 ```

Expected behavior:

…