LeakInsight

About LeakInsight

LeakInsight is a data breach detection API available on RapidAPI, providing access to a database of over 14 billion leaked credential records through a single endpoint. It supports searches by email, username, phone number, full name, IP address, hash, domain, and reverse password lookup, returning breach metadata such as date, source, type, and severity. Input is automatically normalized (e.g., domains, phone numbers, emails, hashes) before searching.

Access is tiered across four plans: General, Pro, Ultra, and Mega. Hash and domain search require Ultra or higher; reverse password search is limited to Mega. Password and IP address visibility are masked on the General plan and fully visible on paid plans. The General plan is priced at $0.00/mo, Ultra at $99.99/mo, and Mega at $449.99/mo.

The API is documented with REST/JSON examples in Python and JavaScript, and is intended for use in login/registration checks, SIEM/SOAR pipelines, fraud prevention, and incident response. It is used by organizations such as MSSPs, fintech companies, e-commerce platforms, SaaS providers, and identity platforms for breach detection and account takeover prevention.

Key features

• Search 14B+ leaked credential records via a single unified endpoint
• Search by email, username, phone number, full name, IP address, hash, or domain
• Tiered access with masked vs. full password and IP visibility by plan
• Pagination support with offset and limit parameters
• Smart input cleaning normalizes domains, phone numbers, emails, and hashes
• Password reverse search for credential reuse analysis (Mega plan only)

Frequently asked questions