How to integrate my rocket chat project to my another project

Hello guys, i need help, i’ve started rocket chat project with compose.yml, so i registered in my site, and now i am in main menu in rocket chat, so now i wanna integrate it into my another, i have project “microcredit project”, so there i wanna add new url, using this url people will go to my rocket chat and use it there, in general, I want to connect my web chat project with a microcredit project. Thx for the help!