On Tue, Jul 14, 2015 at 10:45 PM, Radek Holy <rholy@redhat.com> wrote:
My point is that I did not find any GitHub documentation that describes how to construct these URLs. The only documentation I found is the documentation of the API v3 which seems to provide the required feature.

You can get the links by using the link hover status bar in the browser of your choice.  The guidelines reflect the method used by the web interface of each service for consistency and so you can easily reconstruct it yourself.