# Use the API to find a username based on an email?

**URL:** <https://meta.discourse.org/t/use-the-api-to-find-a-username-based-on-an-email/45424>\
**Category:** Development\
**Tags:** rest-api\
**Created:** [June 8, 2016, 9:50am UTC](https://meta.discourse.org/t/use-the-api-to-find-a-username-based-on-an-email/45424 "2016-06-08T09:50:22Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![alehandrof](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/alehandrof/32/119526_2.png) [@alehandrof](https://meta.discourse.org/u/alehandrof)\
**Post date:** [July 4, 2016, 1:36pm UTC](https://meta.discourse.org/t/use-the-api-to-find-a-username-based-on-an-email/45424/2 "2016-07-04T13:36:05Z")

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In lieu of a bump, let me describe what I want to do.

On my CMS, I have a bunch of user profiles. On each profile I want to display that user’s activity on Discourse, which I would get via RSS.

For example, my activity on this Discourse is available here:  
[https://meta.discourse.org/users/alehandrof/activity.rss](https://meta.discourse.org/users/alehandrof/activity.rss)

To get this URL I need a username, but I don’t have this data at the CMS. All I have is users’ email, which is the same in both the CMS & Discourse. (I’ve made sure of this manually for now, since it’s a small community, but I will be implementing SSO in the near future.)

It’s a PHP CMS and I’ll write a small add-on that pings Discourse with the email and gets a username in return. I will then use the username to form the URL and give it to a plugin that will consume the RSS feed and allow me to output it with my own HTML.

Is there an API endpoint that allows me to find a user’s username through their email?

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_[View the full topic](https://meta.discourse.org/t/use-the-api-to-find-a-username-based-on-an-email/45424)._