CleanTalk APIs
CleanTalk provides API services that enable you to integrate CleanTalk Anti-Spam functionality with your applications. This allows you to use simple and platform-independent methods to protect your applications.
Anti-Spam API 
- check_newuser() - Method check_newuser() should be used to check registrations for spam.
- check_message() - Method check_message() should be used to check comments and contact form submissions for spam.
- send_feedback() - Method send_feedback() should be used only for moderator feedback. It doesn't check spam. It sends back the result of manual moderation.
- Bult-in Libraries.
- API common help.
- Using the Service Without CleanTalk's PHP Library.
- How to automatically get CleanTalk Access keys for a lot of WordPress sites.
Database (Blacklists) API
- spam_check() - Method's response is information about the existence of IP and e-mail records in our database.
- backlinks_check() - This method allows you to identify if a domain was used in other spam messages.
- Public Interface to Check IPs and Email in Bulk
- How to connect CleanTalk IPSet spam IP Database to IPtables
- How to use CleanTalk DNSBL service to check IP for spam
- How to Get Access to the CleanTalk Blacklists Database
Other APIs
Dashboard API
- Personal Lists - API for managing Personal Lists.
- Uptime Monitoring - API for managing Uptime Monitoring.
- The CleanTalk APIs to Work With the Website Settings