---
title: Charmhub | interface
description: Interfaces describe the relation between two charms. This interface shows
  opinionated, standardized interface specifications for charm relations.
url: https://charmhub.io/integrations/squid-auth-helper
---

#

## Other charms using this interface

### Providers

* [squid-reverseproxy](https://charmhub.io/squid-reverseproxy)

### Requirers

* [digest-squid-auth-helper](https://charmhub.io/digest-squid-auth-helper)