---
url: https://wrensecurity.org/projects/wrenig.md
description: >-
  Wren:IG is an open-source identity gateway that adds single sign-on and SAML,
  OAuth 2.0 and OpenID Connect protection to any application behind it.
---

# Wren:IG

## Overview

Place an identity gateway in front of your applications, microservices, and APIs to ensure consistent security
measures, regardless of their technology or authentication capabilities. Including the most problematic legacy
systems.

Wren:IG is a community‐developed reverse proxy server providing single sign-on (SSO) to any application behind
the proxy. Wren:IG includes a number of pre-built filters to transform data of intercepted requests / responses.
Scripted filter allows you to easily create your own filter using the Groovy language.

## Acknowledgments

Wren:IG is standing on the shoulders of giants and is a continuation of a prior work:

* OpenIG by ForgeRock AS

We'd like to thank them for supporting the idea of open-source software.

## Disclaimer

Please note that the acknowledged parties are not affiliated with this project.
Their trade names, product names and trademarks should not be used to refer to
the Wren Security products, as it might be considered an unfair commercial
practice.

Wren Security is open source and always will be.