# Developer API There are 2 api sets: * POESESSID used in the website API is not officially supported. * [OAuth](https://www.pathofexile.com/developer/docs) apis are officially supported, but less functions. ## Development Tool Site | Description - | - [Tooldev Discord Channel](https://discord.gg/pathofexile) | #tooldev-general [PoeSharp](https://github.com/andreandersen/PoeSharp) | C# Library to deal with PoE stuff [PoE Go](https://github.com/ccbrown/poe-go) | an entry-level guide to writing tools for PoE in the Go programming language. ## APIs Site | Description - | - [PoE API swagger](https://poedb.tw/us/poe-api) | PoEDB collections of POESESSID and OAuth API [Official Website API](https://www.pathofexile.com/developer/docs) | OAuth API endpoints of Path of Exile [POESESSID](POESESSID) | how to get your POESESSID [API:Passive_Skill_Tree](API%3APassive_Skill_Tree) [API:OAuth](API%3AOAuth) | how to use OAuth [API:Ladder](API%3ALadder) [API:Trade](API%3ATrade) | Official Trade API (POESESSID) [API:Public_Stashes](API%3APublic_Stashes) | OAuth Public Stashes API [GGPK](GGPK) | Content.ggpk file format [Atlas Tree Export](https://github.com/grindinggear/skilltree-export/tree/atlas) ## Path Of Building Fork schema Site | Description - | - [Pastebin](Pastebin) [Pobbin](Pobbin)