There are no confirmed mods for the Xbox 360 version of the Minecraft game as of June 2015. While there are no official mods for this version of the game, there are some lists of cheats and unlockables for the game that are available on sites like Cheatmasters.
Many of the mods that are available for other versions of the game may be adapted in the future for use on the Xbox system. Most of these types of releases will be available on the Xbox 360's website or the Minecraft site. Some users may make and release mods on other sites that specialize in mods and cheat codes, such as Chapter Cheats.