# OAuth authorization error with Mixpanel MCP **URL:** \ **Category:** Help me!\ **Created:** [February 23, 2026, 3:26pm UTC](https://community.forestadmin.com/t/oauth-authorization-error-with-mixpanel-mcp/8387 "2026-02-23T15:26:32Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Simon\_BRAMI1](https://dub1.discourse-cdn.com/flex013/user_avatar/community.forestadmin.com/simon_brami1/32/2753_2.png) [@Simon\_BRAMI1](https://community.forestadmin.com/u/Simon_BRAMI1)\ **Post date:** [February 23, 2026, 3:26pm UTC](https://community.forestadmin.com/t/oauth-authorization-error-with-mixpanel-mcp/8387/1 "2026-02-23T15:26:32Z")
Hey there, I wanted to give a try to the new “integrations” feature by adding the Mixpanel MCP, but i cannot go through the OAuth process, I immediately get this authorization error after clicking on **Create**. Any idea what could be causing this ? PROJECT NAME : Gepetto FYI I’m already using this MCP through Claude Desktop, and it’s working correctly. Thanks ! ![image](https://europe1.discourse-cdn.com/flex013/uploads/forest/original/2X/3/36ec0af94880b491149c3e5e948caf793b7dd514.jpeg) ---
**Author:** ![anon62739609](https://avatars.discourse-cdn.com/v4/letter/a/c2a13f/32.png) [@anon62739609](https://community.forestadmin.com/u/anon62739609)\ **Post date:** [February 23, 2026, 3:54pm UTC](https://community.forestadmin.com/t/oauth-authorization-error-with-mixpanel-mcp/8387/2 "2026-02-23T15:54:22Z")
Hi @Simon_BRAMI1, I’ve contacted Mixpanel to have more information about this error. I don’t really know what’s the issue atm, I’ll let you know once I have more information. ---
**Author:** ![anon62739609](https://avatars.discourse-cdn.com/v4/letter/a/c2a13f/32.png) [@anon62739609](https://community.forestadmin.com/u/anon62739609)\ **Post date:** [March 5, 2026, 8:45am UTC](https://community.forestadmin.com/t/oauth-authorization-error-with-mixpanel-mcp/8387/3 "2026-03-05T08:45:58Z")
Hey @Simon_BRAMI1, The issue has been fixed on their side 😉 I tried on my side it’s working properly 😃