Rebrandly - Rebrandly is the easiest way to create, share and manage branded links.
Shorten.REST - A URL shortener API you can depend on
Slang - Slang is a powerful visual programming language using a newly developed stream-based paradigm.
PixelMe - URL shortener for savvy marketers
JotURL - Get the most from every link you share
Pixela - Record and Track your habits or effort. All by API.