The Jaybird JDBC driver project develops actively as part of the Firebird project. It has a released Type 4 JDBC/JCA driver and a Type 2 driver in beta. Sources and binaries can be downloaded from the Firebird release pages at Sourceforge.

For advice and to participate in development and testing, join up with the Firebird-java forum on Yahoogroups.

Firebird has an ongoing .NET driver project. Sources and binaries can be downloaded from the Firebird release pages at Sourceforge.

For advice and to participate in development and testing, join up with the Firebird .NET provider forum at Sourceforge.

Users have two powerful alternatives for full, direct connectivity with the Firebird 1.5 API, both well supported with developer and peer support:

the freeware C++ access library 'IBPP' (http://www.ibpp.org), MPL license, hosted on sourceforge.net, fully portable between Win32 and Linux and probably other POSIX platforms. It is useful when you want low-level C-API kind of access, but with a light C++ abstraction level not bound to any particular development environment.

A list of ODBC drivers can be found listed in the Contributed Downloads page at the IBPhoenix site. Lab for ongoing development of the open source Firebird/IBPhoenix ODBC/JDBC driver is in this forum: http://lists.sourceforge.net/lists/listinfo/firebird-odbc-devel

A group is continually working on bringing the old InterBase PHP extension up to standard for Firebird. To ask about this project, join up with the Firebird-PHP forum at http://www.yahoogroups.com/community/firebird-php

KInterbasDB is a Python extension package that implements Python Database API 2.0-compliant support for Firebird. Full native API support for the Firebird client; in stable release and under active development. BSD open source licence. Downloads and news at http://kinterbasdb.sourceforge.net/