Hey @Jaydon_Walters! This should definitely be possible 
You can first create a REST API resource
https://docs.retool.com/docs/connect-to-rest-apis
Then, in an app, you can create a query using that REST API resource.
In your query, you can add the headers and body value you need!
https://docs.retool.com/docs/api-requests
Let me know if you get stuck anywhere and I'd be happy to help.