Client API Lineup

SolRuby

Ruby

https://github.com/rsolr/rsolr

DelSolr

Ruby

https://github.com/avvo/delsolr

acts_as_solr

Rails

http://acts-as-solr.rubyforge.org/, http://rubyforge.org/projects/background-solr/

Flare

Rails

http://wiki.apache.org/solr/Flare

SolPHP

PHP

http://wiki.apache.org/solr/SolPHP

SolrJ

Java

http://wiki.apache.org/solr/SolJava

Python API

Python

http://wiki.apache.org/solr/SolPython

PySolr

Python

http://code.google.com/p/pysolr/

SolPerl

Perl

http://wiki.apache.org/solr/SolPerl

Solr.pm

Perl

http://search.cpan.org/~garafola/Solr-0.03/lib/Solr.pm

SolrForrest

Forrest/Cocoon

http://wiki.apache.org/solr/SolrForrest

SolrSharp

C#

http://www.codeplex.com/solrsharp

SolColdfusion

ColdFusion

http://solcoldfusion.riaforge.org/

SolrNet

.NET

https://github.com/mausch/SolrNet

AJAX Solr

AJAX

http://github.com/evolvingweb/ajax-solr/wiki