LeakData.io

LeakData.io helps independent developers and security teams detect whether authorized emails, domains, usernames, or credentials appear in breach datasets. Create ongoing monitors for exposure alerts and risk reports, connect findings through REST APIs and signed webhooks, and feed results into SIEM/SOAR workflows. Privacy-preserving password checks use k-anonymity. Practical use cases include monitoring a startup domain and team accounts, integrating breach signals into internal tools, and checking password exposure without sending full password hashes. A continuing free plan is available.