Welcome to the Atlassian developer community @noamgershi,
The great thing about Atlassian is that we have so many APIs to choose from! For your case, I can’t tell which one you are talking about. Maybe Bitbucket because of the reference to committer? But still, there are different auth mechanisms across Bitbucket Server/Data Center vs Bitbucket Cloud.
Maybe you could have a look at the following to see if it helps prompt for more context so that we can help: