# Overview

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.