This software make it possible to use your OpenID to login to IndieAuth-enabled websites.
On your home page, add the following code to the HTML <head> section:
<link rel="authorization_endpoint" href="http://indieauth.id.cweiske.de/" />
Now simply enter your homepage URL in the IndieAuth login field and press return. You'll be redirected to your OpenID provider and see its login prompt.
indieauth-openid was written by Christian Weiske and is licensed under the AGPL v3 or later.
You can get the source code from git.cweiske.de/indieauth-openid.git or the mirror on Github.