Can I get tracking code to my application from piwik when users register from my application

Plugins & Platform
1

My requirement is to get tracking code for the user register from my site to piwik via url.

2

Yes, you can, see for example this API: Reporting API Reference: API Reference - Matomo Analytics (formerly Piwik Analytics) - Developer Docs - v3

SitesManager.getJavaScripttag