OOPSpam Anti-Spam API is a powerful anti-spam filter for contact forms, comment systems, live chat- the limit is your creativity!
OOPSpam Anti-Spam API's advantages over alternatives:
We also have a WordPress plugin, get it here: OOPSpam Anti-Spam – WordPress plugin | WordPress.org
Akismet - Akismet is a spam fighting service that protects millions of WordPress sites from comment and contact form spam.
Referrer Spam Remover - Remove spam bots from your Google Analytics data
CleanTalk - Spam protection for WordPress, Joomla, Drupal, and any other websites
Spam Check - A free JSON API to check your email messages' spam scores
hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
CanIPhish - Blend social engineering with real-world phishing simulations to train your users how to detect the most advanced threats.All in a completely self-service, fast, free and modern SaaS platform.