> ## Documentation Index
> Fetch the complete documentation index at: https://eigendb.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Authentication

> EigenDB provides a robust and efficient API to let you manage your embeddings.

### Authentication 🔐

Authentication in EigenDB's API is performed using API keys.

To access a protected endpoint, the API key for your EigenDB instance should be placed in an HTTP header named `X-Eigen-API-Key`.

```http theme={null}
X-Eigen-API-Key: YOUR_API_KEY
```