Salesforce API Explorer is a great tool for Salesforce developers, we can explore/test different Salesforce APIs here. Below are some Salesforce APIs available for developer preview that you can explore.
- B2C Commerce Developer Sandbox API’s
- Einstein Prediction Service Scoring API
- Einstein Vision and Einstein Language
- Force.com REST API sObject Resources
- Marketing Cloud REST API
- Salesforce IoT API
Force.com REST API sObject Resources:
This force.com REST API provides all sObject data and metadata pieces of information related to your organization. This can be used to develop Apps and integration projects.
Note: Currently this is available as Developer Preview (New Salesforce API Explorer).