# Which Zoom Client URL Schemes parameters are required? **URL:** \ **Category:** API and Webhooks\ **Created:** [October 16, 2020, 4:20pm UTC](https://devforum.zoom.us/t/which-zoom-client-url-schemes-parameters-are-required/33484 "2020-10-16T16:20:50Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![nbransby](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/nbransby/32/17195_2.png) [@nbransby](https://devforum.zoom.us/u/nbransby)\ **Post date:** [October 16, 2020, 4:20pm UTC](https://devforum.zoom.us/t/which-zoom-client-url-schemes-parameters-are-required/33484/1 "2020-10-16T16:20:51Z")
> **[Zoom Client URL Schemes - Guides - Documentation](https://marketplace.zoom.us/docs/guides/guides/client-url-schemes)** > > Zoom Client URL Schemes > > When integrating your application with Zoom, you can use a URL protocol (ex: zoomus:) instead of https:// to start or join... This doc does not state which of the parameters are required. The example url in the doc is: zoommtg://zoom.us/start?confno=123456789&pwd=xxxx Which doesn’t seem to do anything but just open the Zoom client (I’ve got 5.3.2 installed on Windows 10) ---
**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:** [October 19, 2020, 6:38pm UTC](https://devforum.zoom.us/t/which-zoom-client-url-schemes-parameters-are-required/33484/2 "2020-10-19T18:38:44Z")
Hey @nbransby, Thanks for reaching out about this. For the URLs in the documentation you’ve shared, the `confno` parameter is required, and password is required if the meeting has password requirements turned on. In terms of the prefix (zoommtg vs zoomus), this will depend if you’re trying to start/join via desktop or mobile. Does this help? If you have some more details on your use case, I’m happy to provide further guidance! Thanks, Will ---
**Author:** ![nbransby](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/nbransby/32/17195_2.png) [@nbransby](https://devforum.zoom.us/u/nbransby)\ **Post date:** [October 19, 2020, 8:48pm UTC](https://devforum.zoom.us/t/which-zoom-client-url-schemes-parameters-are-required/33484/3 "2020-10-19T20:48:21Z")
Thanks Will, what about this bit: > [@nbransby](#): > > The example url in the doc is: > > zoommtg://zoom.us/start?confno=123456789&pwd=xxxx > > Which doesn’t seem to do anything but just open the Zoom client (I’ve got 5.3.2 installed on Windows 10) ---
**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:** [October 20, 2020, 6:53pm UTC](https://devforum.zoom.us/t/which-zoom-client-url-schemes-parameters-are-required/33484/4 "2020-10-20T18:53:07Z")
Hey @nbransby, Are you passing in your own meeting number and password, or are opening the link exactly as it’s shared in the documentation? Thanks, Will ---
**Author:** ![nbransby](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/nbransby/32/17195_2.png) [@nbransby](https://devforum.zoom.us/u/nbransby)\ **Post date:** [October 20, 2020, 7:20pm UTC](https://devforum.zoom.us/t/which-zoom-client-url-schemes-parameters-are-required/33484/5 "2020-10-20T19:20:00Z")
I assumed starting a meeting meant it would create a new one with the supplied parameters, is that not the case? Does the meeting need to be created in a prior step before starting? ---
**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:** [October 21, 2020, 3:23pm UTC](https://devforum.zoom.us/t/which-zoom-client-url-schemes-parameters-are-required/33484/6 "2020-10-21T15:23:20Z")
Hey @nbransby, The meeting will need to be created/scheduled first, before you access via this URL scheme. The URL itself will not generate the meeting. Let me know if this helps to clear things up, Will ---
**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:** [November 21, 2020, 1:23am UTC](https://devforum.zoom.us/t/which-zoom-client-url-schemes-parameters-are-required/33484/7 "2020-11-21T01:23:29Z")
Closed on November 21, 2020, 1:23am UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.