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

# Automatic Failover & Key Rotation

> How Openference keeps requests flowing when providers degrade.

# Failover & Rotation

For each model we maintain multiple upstream routes (different providers/keys).

* Weighted selection and cooldowns are used.
* When a route returns repeated errors it is temporarily removed from rotation.
* Healthy routes are preferred.
* Upstream failures are never charged to your quota.

For API key hygiene, see [Security Best Practices](/security/best-practices).