# User registration limit

**URL:** <https://devforum.zoom.us/t/user-registration-limit/74945>\
**Category:** API and Webhooks\
**Created:** [August 26, 2022, 12:53pm UTC](https://devforum.zoom.us/t/user-registration-limit/74945 "2022-08-26T12:53:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![informatica1](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/informatica1/32/40844_2.png) [@informatica1](https://devforum.zoom.us/u/informatica1)\
**Post date:** [August 26, 2022, 12:53pm UTC](https://devforum.zoom.us/t/user-registration-limit/74945/1 "2022-08-26T12:53:16Z")

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**API Endpoint(s) and/or Zoom API Event(s)**

> **[Zoom Meeting API](https://marketplace.zoom.us/docs/api-reference/zoom-api/methods/#operation/addBatchWebinarRegistrants)**
>
> API Reference for /api-reference/zoom-api/methods

**Description**  
\*We have verified through the documentation [Zoom Meeting API](https://marketplace.zoom.us/docs/api-reference/zoom-api/methods/#operation/addBatchWebinarRegistrants) that it is only allowed via the API to register 30 participants for the Webinar at a time. We need to register about 3000 participants. Can we run the API 100x to meet our demand? Is there a risk of being blocked?

Thanks\*

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**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\
**Post date:** [August 26, 2022, 2:23pm UTC](https://devforum.zoom.us/t/user-registration-limit/74945/2 "2022-08-26T14:23:49Z")

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Hi @informatica1  
Thanks for reaching out to the Zoom Developer Forum, I am happy to help here!  
You won’t get blocked by calling the same endpoint, just be mindful of the rate limits for this endpoint, which is a HEAVY endpoint.

> **[Rate limits](https://marketplace.zoom.us/docs/api-reference/rate-limits/#rate-limits)**
>
> The Zoom Developer Platform is an open platform that allows third-party developers to build applications and integrations upon Zoom’s video-first unified communications platform.

 ![Screen Shot 2022-08-26 at 10.23.21 AM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/c/c/cc2043e9b0b950ffc9d4d0c87cd20b03ab5c01c8.png)

Hope this helps,  
Elisa

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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:** [August 30, 2023, 6:00am UTC](https://devforum.zoom.us/t/user-registration-limit/74945/3 "2023-08-30T06:00:25Z")

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Closed on August 30, 2023, 6:00am UTC

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