# API

This section provides information about Qualcomm® AI Engine Direct API.

- Overview
- Usage Guidelines
- QNN API Revision History
- Backend Specific Revision History
- QNN System API Revision History
- Supported APIs
- Supported Capabilities

## C

- Class Hierarchy
- File Hierarchy
- Full API
- Error codes

Last Published: Oct 10, 2025

Previous Topic
 
TransposeConv2d Next Topic

Overview