release date: 2010-11-30
AT-SPI2 is a D-Bus based accessibility framework. It defines a D-Bus protocol for providing and accessing application accessibility information. The project includes a library for bridging the D-Bus protocol to the ATK API, allowing Gtk based applications to be made accessible. It also contains a client (AT) side library in Python.
AT-SPI2 1.91.3 is now available for download at:
A list of work required before the full release can be found at:
This is a major refactor: at-spi2-core now includes an AT-side C binding (libatspi), and pyatspi is now implemented on top of libatspi with most functionality derived using GObject introspection. This should be much more performant on the AT side. Note that libatspi is not API-compatible with CSPI. Also, this is more of a development snapshot than a usable release. All of the interfaces have code to implement them, but it is mostly untested and not currently usable with Orca for instance.
The project wiki is available at:
We are actively seeking contributors to help us make this the standard accessibility framework for GNOME. We need help testing with Gnome accessibility technologies, improving performance, and generally tying up loose ends. The above-referenced page contains a list of known issues that should be fixed.
To participate in AT-SPI2 developement, you can:
Development repositories for AT-SPI2 can be found at: