The [Navitia](https://www.navitia.io/) API is an open API build around transport data.

you can query for journeys, isochrone, schedules, realtime data, ...

Marvel now requires an account to get an api key.

It's free for open source and free for smaller/personal/learning projects. There's a paid tier for enterprise.

Add Battlefield 4 API.

Sometimes a service may not provide its data directly in JSONP for use with client-side JS. This high-availability service (already serving more than 7m requests monthly) can assist in converting data output in JSON to JSONP.

and move whitepages API into standalone fraud prevention section

There has been some recent interest in adding paid services to this list, so adding `free` in the project's description to clarify the mission of the project.