Self-explanatory.<p>What tools/resources/docgens/services have you used to provide documentation for your public facing API services that you are providing to customers.
I prefer hand-written. But other people like Swagger <a href="https://developers.helloreverb.com/swagger/" rel="nofollow">https://developers.helloreverb.com/swagger/</a>, I/O Docs <a href="https://github.com/mashery/iodocs" rel="nofollow">https://github.com/mashery/iodocs</a>, Daux (although this is just a style framework) <a href="http://daux.io/" rel="nofollow">http://daux.io/</a> and <a href="http://apiary.io/" rel="nofollow">http://apiary.io/</a>
We use a wiki (Dokuwiki) for internal docs, probably going to either make it public or perhaps switch over to Daux.io once I'm satisfied it doesn't hate America.