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

# Create and rotate API keys

> Securely authenticate integrations that call the Sayvy API.

# Create and rotate API keys

API keys authenticate server-to-server requests. Treat them like passwords: keep them on your backend, limit who can view them, and rotate them on a schedule.

## Create a key

1. Open **Settings → API keys**.
2. Select **Create API key** and give it a purpose-based name, such as `production-sync`.
3. Copy the secret immediately and store it in your server's secret manager.
4. Send it using the `Authorization: Bearer <your-key>` header.

<Warning>Never commit a key to source control, place it in browser code, or paste it into a support ticket. If it is exposed, revoke it immediately and create a replacement.</Warning>

See [API authentication](/api-reference/authentication) for request examples and [API limits](/api-reference/limits) for operational constraints.


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