# Overview
TIP
View the Learning API Reference Guides
Cornerstone's Learning APIs are divided in two: Synchronous APIs that operate off of live data, and asynchronous APIs that trigger operations to begin, but won't complete immediately.
The synchronous APIs are:
- Catalog Search
- Delete Certification
- Certification Details
- Certification Transcript
- LO
- Session Roster
- Training Unit
- Transcript and Task
- Training & Transcript Custom Fields
- Transcript Search
The Asynchronous APIs are:
- Learning Assignment
- Express Class
Additionally, our Bulk, Reporting, and Data Exporter API frameworks also enable customers to operate on learning data.