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The API Keys page is where you manage all credentials for applications connecting to the MetrixLLM gateway.

Creating a Key

  1. Click Create API Key.
  2. Enter a descriptive name (e.g. iOS App - Production, Backend Service).
  3. Click Create — the key is displayed once. Copy it immediately.
The key value is shown only at the moment of creation. If you didn’t copy it, revoke the key and create a new one.

The Key Format

All MetrixLLM API keys begin with mtx_. This prefix ensures your code never accidentally sends a raw provider key (like sk-...) through the gateway.

Revoking a Key

Click the Revoke button next to any key to immediately invalidate it. Active requests using that key will fail with a 401 Unauthorized error within seconds.

Viewing Key Usage

Each key in the table shows its last used timestamp and the total request count. Click on a key to see a filtered view of its request logs and cost breakdown.