When creating a list in SharePoint, you can choose the "LookUp" field. I would like to have that "LookUp" be able grab information from an API from a different site. Any way to get this process started. Any feedback is good feedback.
I don't think you can really do that. Lookup columns are meant to refer to other lists in SharePoint.
As suggested in this answer, an approach you might be able to take is to create an External Content Type to pull data from your external API into SharePoint, then set up an External Data column on your list that refers to the External Content Type.