> ## Documentation Index
> Fetch the complete documentation index at: https://unkey-eng-3082-add-portal-config-crud-api-endpoints-v2portal.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# usage_exceeded

> UsageExceeded represents a 429 error - the credential has no remaining credits.

<Danger>`err:frontline:client:usage_exceeded`</Danger>