API Development KitVersion: 13

General API Development Kit 13

The General API Development Kit enables software developers to extend the functionality of ArchiCAD.

The following documents give a short overview of the possibilities and requirements.

API White Paper
License Agreement
System Requirements

Add-ons built with this API version are compatible with ArchiCAD 13.
You can check what improvements and corrections have been made to the former API versions.

New Features in ArchiCAD 13  Featuring API 13
Known and Fixed Bugs

Learn more about compatibility of different API versions:

API Compatibility
Release History

The following documents contain detailed information on different aspects of API development.
Please consider these rules and recommendations in order to develop solutions conforming to ArchiCAD.

Platform Independent Programming
DevKit Components
Structure of an Add-On
User Interface Issues
Database Overview
Tips and Tricks
Frequently Asked Questions
ReadMe Guidelines

Reference to the Application Programming Interface

Structure Reference
Function Reference
Error Codes


Visit the Graphisoft website at for the address of your local distributor. Product availability information, technical details, upgrades etc. provided at

For more information on third party possibilities please contact:

Graphisoft R&D zrt.


Version 13 Copyright © Graphisoft 2009