Cursor API Key

Use OmniaKey in Cursor by enabling the OpenAI API key path, pasting your OmniaKey token, and setting the override base URL to https://api.omniakey.com/v1.

​ Direct answer

In Cursor, open Settings → Models → API Keys :

Field	Value
OpenAI API Key	your OmniaKey API key
Override Base URL	https://api.omniakey.com/v1
Model ID	a supported id such as claude-opus-4-8

​ Step 1: Create an OmniaKey key

Open the API Keys dashboard, create a key named something like cursor-local, and copy it.

​ Step 2: Configure Cursor

In Cursor’s model settings:

1. Enable the OpenAI API key option.
2. Paste your OmniaKey key.
3. Enable Override Base URL.
4. Set the base URL to https://api.omniakey.com/v1.

​ Step 3: Add model ids

Use exact model ids from Models. Cursor can reach supported Claude, GPT, Gemini, and Grok models through the OpenAI-compatible endpoint.Examples:

• claude-opus-4-8
• gpt-5.5
• gemini-3.1-pro-preview
• grok-4.5

​ FAQ

​ What base URL should Cursor use?

Use https://api.omniakey.com/v1.

​ Can Cursor use Claude through an OpenAI-compatible endpoint?

Yes. OmniaKey maps supported Claude ids through the OpenAI-compatible Chat Completions endpoint, so Cursor can call Claude by model id.

​ Should I use one key for every Cursor workspace?

You can, but separate keys per workspace are easier to revoke, cap, and audit.

Claude Code API KeyCodex CLI

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