# API Call issue - Invalid Client ID

**URL:** <https://devforum.zoom.us/t/api-call-issue-invalid-client-id/39081>\
**Category:** API and Webhooks\
**Created:** [December 23, 2020, 1:51pm UTC](https://devforum.zoom.us/t/api-call-issue-invalid-client-id/39081 "2020-12-23T13:51:49Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![nsawalha](https://avatars.discourse-cdn.com/v4/letter/n/df788c/32.png) [@nsawalha](https://devforum.zoom.us/u/nsawalha)\
**Post date:** [December 23, 2020, 1:51pm UTC](https://devforum.zoom.us/t/api-call-issue-invalid-client-id/39081/1 "2020-12-23T13:51:50Z")

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Hi, I’m having an issue generating an access token to use in Zoom API calls

Invalid client\_id: xxxxxxxxxxxxx(4,700)

![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/d/6d002e5ddcc938ea2dc2b38cfc14fde28cc5ab2e.png)

Thanks for help

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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:** [December 28, 2020, 5:34pm UTC](https://devforum.zoom.us/t/api-call-issue-invalid-client-id/39081/2 "2020-12-28T17:34:41Z")

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Hi @nsawalha,

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

Can you confirm that you’ve already created an OAuth App under your account? If you haven’t yet, you will need to first create an OAuth app and grab your Client ID and Secret from that app once they’re generated/the app is created. You can follow the steps here to grab these values:

> **[OAuth - Build an App - Documentation](https://marketplace.zoom.us/docs/guides/build/oauth-app)**
>
> Create an OAuth App
> 
> OAuth 2.0 is the industry-standard authorization protocol that allows applications to obtain requested access to user accounts over...

Let me know if you’ve had a chance to do this and if you still see this message.

Thanks,  
Will

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**Author:** ![nsawalha](https://avatars.discourse-cdn.com/v4/letter/n/df788c/32.png) [@nsawalha](https://devforum.zoom.us/u/nsawalha)\
**Post date:** [December 28, 2020, 6:14pm UTC](https://devforum.zoom.us/t/api-call-issue-invalid-client-id/39081/3 "2020-12-28T18:14:12Z")

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Hi Will, Yes i did and used the API key and secret in the screenshot above to get the access token.

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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:** [December 29, 2020, 4:19pm UTC](https://devforum.zoom.us/t/api-call-issue-invalid-client-id/39081/4 "2020-12-29T16:19:23Z")

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Hi @nsawalha,

I just private messaged you for some account details when you have a chance. Thanks!

Will

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [January 29, 2021, 2:19am UTC](https://devforum.zoom.us/t/api-call-issue-invalid-client-id/39081/5 "2021-01-29T02:19:27Z")

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