Cursor

Cursor supports an [OI] API key plus a custom base URL. That is enough to route its chat models through RelayRouter.

Setup

1. 1

   Create a key

   Create one on the API keys page.
2. 2

   Open model settings

   Open Cursor Settings → Models.
3. 3

   Enable the custom endpoint

   Paste your key into [OI] API Key, then enable Override [OI] Base URL and set it to https://api.relayrouter.org/v1.
4. 4

   Add models

   Under Add model, enter exact ids such as gpt-6-sol or claude-sonnet-4-6. Toggle them on.
5. 5

   Verify

   Click Verify. A 401 means the key is wrong; a 402 means the account needs credit.