---
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/keystone-fid-service-provider
---

#

## Other charms using this interface

### Providers

* [keystone-kerberos](https://charmhub.io/keystone-kerberos)
* [keystone-saml-mellon](https://charmhub.io/keystone-saml-mellon)

### Requirers

* [keystone](https://charmhub.io/keystone)