Small REST API made with Flask (python) to generate htpasswd files. The files can be used with nginx or apache. Groups are currently not supported.

You can look into vagrant-control if you need an interface.

[Creative Commons Attribution 3.0 Unported] [2] [2]: https://raw.github.com/Pheromone/htpasswd-api/master/LICENSE.txt

Keep in mind that this project is closer to ALPHA than to STABLE. DO NOT use on production system.