The Traffic Alert API allows developers to provide their pilots with alerts about nearby traffic - including commercial airplanes, general aviation airplanes, helicopters, and some unmanned aircraft. The traffic feed is a combination of several highly reliables sources used by the airline industry. The Traffic Alert API automatically filters to alert the operator of only traffic that is low-altitude and near the current flight path.
The Traffic Alert API requires a few other AirMap services in order to function. If you are not familiar with these tools, check out the respective guides before proceeding:
Flight API: You must create a flight prior to using the Traffic Alert API (since the Traffic Alert API needs to know where to filter traffic for your flight). See Creating and Viewing Flights