How do I write a chat message via url on twitch?

Hello everyone I would like to write a message in the chat via url.

Here is an example, which of course does not work because I'm looking for the solution:

https://www.twitch.tv/...y_mod/chat / chat message = test

The twitch API is there for this:
https://dev.twitch.tv/docs/irc

Thanks a lot. Yes, I have to write code here that I know and know, but I only want to do it via url.

This is not due to safeguards that the API requests.