What technical support chat to connect to the site?

Question

Chats

Such a task:
We need a technical support chat on the site, but not pop-up, but built into the page.
That is, a person goes to a certain page, where a chat is already built into the page and he writes his questions.
I'm not interested in pop-up chat options, because. JivoSite is already installed, but it does not suit that it pops up and sticks out in the corner of the screen. We need a chat built into the page.
I searched the Internet carefully, but did not find it.

Answer 1

Connected in general MyChat. It suits everyone and it's free. The only thing is that you need a VPS, but VPS is now cheap - I rent for 350 rubles a month and that suits me.
Then I eventually switched to Siteheart. Made authorization of users through json. All OK.

Answer 2

https://improvi.github.io/slack-chat/
дивку встраивайте на страницу
из плюсов - у вас уже есть функциональный клиент готовый, с кучей разных ботов в сети к нему. можно сколько угодно саппортов садить, автоответчики прикручивать и т.п.