The drf-json-api is a parser and renderer for the Django REST framework. It also adds support for the JSON API specification, but it doesn't provide any of the additional functionality one might normally find in a JSON API.
Who needs a tracking service when you can just hop on the USPS, FedEx, UPS, or DHL website (or whoever your carrier is) and just track? Maybe you. The Trackthis API integrates an amazing array of functions into your application. The API webpage lists over 10 carriers you can get notifications for.
Nathan Kontny is out to revise how you write, especially when you work with others. His online word processing program, Draft boasts features you can't find in any other wordprocessor--like a professional editing service, for example.
Trailforks runs "a user-powered mountain bike trail database currently focused on BC, Canada," to report on trail conditions and what is required to upgrade them.Notes for the Trailforks API are like the bike trails it reports on: rough. But the site's creator, Trevor May, promises more documentation soon.