Nintendo has posted information pertaining to all announced Amiibo being released between February and spring 2015.
In the images below, you will be able to see which figure is compatible with which games, and what exactly you can do in-game with each Amiibo.
Some contain both Read and Write abilities, which means the figures provide additional content for the game and also save certain game data to the Amiibo. Only one Amiibo can only hold save data for one game at a time.
Marth, Ike, Robin and Lucina are the only Amiibo compatible with Code Name: S.T.E.A.M., and are "Read-Only" which means the characters only provide additional content for the game.
Amiibo which are compatible with Yoshi's Woolly World will be announced at a later date.
Nintendo announced the latest Amiibo line-up during its Nintendo Direct presentation this morning, which included a western release date for New 3DS and 3DS XL.