Detailed Trade It API documentation can be found here: https://www.trade.it/api.
The JCenter repo can be found here: https://bintray.com/tradeit/maven/tradeit-android-sdk
For examples usage, see the example app and tests included with the SDK.
To get started, check out the following sections in this order:
Once the user is linked and authenticated then you can use the rest of the TradeIt broker functionality including: