# Error 443 in curl when calling API

**URL:** <https://devforum.zoom.us/t/error-443-in-curl-when-calling-api/11021>\
**Category:** API and Webhooks\
**Created:** [April 3, 2020, 7:32pm UTC](https://devforum.zoom.us/t/error-443-in-curl-when-calling-api/11021 "2020-04-03T19:32:40Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [April 3, 2020, 10:33pm UTC](https://devforum.zoom.us/t/error-443-in-curl-when-calling-api/11021/4 "2020-04-03T22:33:08Z")

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Hey @marcelocuadrado,

Are you able to request other (non Zoom) APIs from your server?

I wonder if it is a firewall issue, or your CURL command has a bug?

Thanks,  
Tommy

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