API - Post

I am not very good at tech myself.
I am looking for help from someone who can create an API post from a specific database into XML format and have it posted into a different website.

From doing my research, I believe it should be possible to create a JS Workflow to complete this, but I am very new to the whole process.
happy to send someone the schema I have been provided by the other site, this should help in creating the API post.

Really need some help.