# Invalid access token with server-side token JWT

**URL:** <https://devforum.zoom.us/t/invalid-access-token-with-server-side-token-jwt/43515>\
**Category:** API and Webhooks\
**Created:** [February 16, 2021, 8:42pm UTC](https://devforum.zoom.us/t/invalid-access-token-with-server-side-token-jwt/43515 "2021-02-16T20:42:12Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\
**Post date:** [February 17, 2021, 7:31pm UTC](https://devforum.zoom.us/t/invalid-access-token-with-server-side-token-jwt/43515/4 "2021-02-17T19:31:12Z")

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Hey @micu,

Thanks for reaching out about this, and happy to help.

Are you using the C# library from [jwt.io](http://jwt.io), or a different library? Can you let me know if this thread helps:  
[C# JWT token invalid - #6 by tommy](https://devforum.zoom.us/t/c-jwt-token-invalid/5968/6)

If the JWT token generated via the Zoom marketplace is working for you, this is most likely an issue with the code you’re using to generate the token programmatically.

Let me know if either of the resources linked in the attached thread help, though!

Best,  
Will

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