Getting Started with REST API for Industries
Run some sample REST requests in your development org to learn Industries REST API
basics. Trying out the examples now makes it easier to build your applications
later.
Start with a development platform with authorization set up on it. If you don’t have a platform, see the REST API Developer’s Guide for information about creating one.
Salesforce Industries REST API isn’t part of the regular Lightning Platform REST API. It has its own versioning scheme and makes more use of namespaces.