While most people know about the Akismet plugin for WordPress, others have been implementing Akismet for other systems and platforms; here are the ones we know about:

WordPress Plugins

• Official WordPress Plugin (Comments)
• Jetpack (Contact Form)
• Contact Form 7 with Flamingo (Contact Form)
• Gravity Forms (Contact Form)
• GiveWP (Donation Collection)

Other Content Management Systems (CMS)

• Drupal AntiSpam Module (Drupal)
• R Antispam (Joomla)
• Antispam (Perch)
• AkismetKlik (Mediawiki)
• MediaWiki-Akismet (Mediawiki)
• Advanced Spam Cleaner (Moodle)
• Exkismet (Elixir)

Forums

• discourse-akismet (Discourse)
• Spam-o-mattic (vBulletin)
• Akismet Spam Protection (SMF)
• Akismet Anti-Spam Extension (phpBB)

Other Implementations

• Piwigo
• Akismet Plugin for PHPList3

Other Libraries

• Dart: Dart Connector for Akismet
• JavaScript: Node.js bindings to the Akismet API
• JavaScript: Akismet for JS (Node.js): Prevent comment spam using JavaScript
• Kotlin/Java: Akismet for Kotlin/Java by Erik C. Thauvin
• PHP: Laraval 4 framework
• PHP: Tiki Wiki CMS Groupware
• PHP: PHP 4 class by Bret Kuhns
• PHP: Fuspam PHP function
• Python: python-akismet
• Python: Voidspace Python module
• Python: pykismet3: Python 3 Akismet client (used by Django forms)
• Ruby: RubyGem: Rakismet
• Ruby: RubyGem: Akismet (unofficial)
• Go: go-akismet
• .NET: Akismet: unofficial “dot-net” Akismet API library.
• Perl: Net::Akismet: Perl interface to Akismet – comment and trackback spam fighter.

If you’ve created your own Akismet integration using our API and want to be included on this list, please contact us here.