# How to identify anonymous contact using API?

**URL:** <https://forum.mautic.org/t/how-to-identify-anonymous-contact-using-api/8028>\
**Category:** Product Support\
**Created:** [March 27, 2017, 11:23am UTC](https://forum.mautic.org/t/how-to-identify-anonymous-contact-using-api/8028 "2017-03-27T11:23:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![eknimation](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/eknimation/32/165_2.png) [@eknimation](https://forum.mautic.org/u/eknimation)\
**Post date:** [March 27, 2017, 11:23am UTC](https://forum.mautic.org/t/how-to-identify-anonymous-contact-using-api/8028/1 "2017-03-27T11:23:57Z")

</div>

Hi there,  
  
  
  
I install tracking into 3rd website and worked. I look in console.  
  
 ![2017-03-27-19_15_27.jpg](http://www.appmoro.com/imagestore/mautic/api/2017-03-27-19_15_27.jpg)  
  
  
  
 ![2017-03-27-19_18_37.jpg](http://www.appmoro.com/imagestore/mautic/api/2017-03-27-19_18_37.jpg)  
  
  
  
  
  
Then. After user submit data to main web application I using contact API send data to mautic too.  
  
I using contact create [https://developer.mautic.org/#create-contact](https://developer.mautic.org/#create-contact) but I got new contact.  
  
  
  
 ![2017-03-27-19_23_07.jpg](http://www.appmoro.com/imagestore/mautic/api/2017-03-27-19_23_07.jpg)  
  
  
  
If I want to identify from anonymous to contact. Which API can do it.

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<div class="post-metadata">

**Author:** ![eknimation](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/eknimation/32/165_2.png) [@eknimation](https://forum.mautic.org/u/eknimation)\
**Post date:** [March 27, 2017, 11:23am UTC](https://forum.mautic.org/t/how-to-identify-anonymous-contact-using-api/8028/2 "2017-03-27T11:23:57Z")

</div>

Hi there,

I install tracking into 3rd website and worked. I look in console.  
 ![](http://www.appmoro.com/imagestore/mautic/api/2017-03-27-19_15_27.jpg)

![](http://www.appmoro.com/imagestore/mautic/api/2017-03-27-19_18_37.jpg)

Then. After user submit data to main web application I using contact API send data to mautic too.  
I using contact create [https://developer.mautic.org/#create-contact](https://developer.mautic.org/#create-contact) but I got new contact.

![](http://www.appmoro.com/imagestore/mautic/api/2017-03-27-19_23_07.jpg)

If I want to identify from anonymous to contact. Which API can do it.