At present stage of the TAS3 project (2009) we only offer Java, PHP, and C/C++ bindings, but in future we aim supporting also at least the following
C# / .Net / Mono
Perl (currently zxid.org derived Net::SAML perl module, available from cpan.org, supports most functionality of TAS3 API, but this is unofficial)
Python
Ruby
We welcome external contribution and language specialist help in making all these bindings available. Please contact Sampo Kellomäki (sampo@symlabs.com) if you are interested.