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.github/docs/tools/leakcheck.md

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+# `leakcheck`
+
+Data breach lookup via LeakCheck.io — searches 7B+ leaked records for email addresses, usernames, and phone numbers across hundreds of breaches.
+
+**Source / documentation:** [https://leakcheck.io](https://leakcheck.io)
+
+## Input types
+
+- `email`
+- `username`
+- `phone`
+
+## Configuration
+
+Configure globally via the Tools page or override per profile.
+
+| Field | Type | Required | Default | Description |
+|-------|------|:--------:|---------|-------------|
+| `api_key` | `string` | **yes** | - | LeakCheck API key (required — get one at leakcheck.io) |
+
+---
+
+[← Back to tools index](../tools.md)