LeakData.io

LeakData.io helps individuals and security teams discover leaked credentials across more than 15 billion records from over 1,300 breach datasets. Users can monitor emails, domains, usernames, passwords, and credentials; receive alerts and reports; and connect findings to security workflows through a REST API, signed webhooks, and SIEM/SOAR integrations. Privacy-preserving k-anonymity checks reduce unnecessary disclosure of searched values. The service is available in English and Turkish with a freemium model.

Key features:
- Email, domain, username, password, and credential monitoring
- 15B+ records across 1,300+ datasets
- Breach alerts and reports
- REST API and signed webhooks
- SIEM/SOAR integrations
- Privacy-preserving k-anonymity checks