# Developer API There are 2 api sets. `OAuth 2.0` : One only works with OAuth 2.0and have official support and [official documents](https://www.pathofexile.com/developer/docs). `POESESSID`: Another one works with http cookie header, that used by official site. You can use Chrome browser in Dev Tool (Press F12), click the `Network` tab, click `Fetch/XHR` filter to see how the API used. But note that this api is not officially supported and no documentation. ## Find the POESESSID in Chrome or Edge **Strongly recommend extreme caution with the use of your POESESSID, as providing that information to anyone else may put your account access at risk.** * Login to pathofexile.com * Press F12 to open the Dev Tool * Click the Application tab * Expand the Cookies dropdown and select pathofexile.com * Double click the POESESSID Value and copy  ## API summaries by PoEDB https://poedb.tw/us/poe-api