This is the website through which people can use the dice roller (RollGen), the equipment generator (TreasureGen), the character generator (CharacterGen), the encounter generator (EncounterGen), and the dungeon generator (DungeonGen).
The website: DnDGen.com
This also includes the code for the public-accessible APIs for the various generators:
Other APIs for other generators are currently on the docket, but are not yet implemented.