MCP server

LeakData Official

io.github.leakdatahq/leakdata-mcp

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Check breach exposure for your verified email and check locally computed password hash prefixes.

Website

At a glance

Type

MCP server

Publisher

leakdata.io (verified by the MCP Registry)

Status

Working at last check

Tools

7

Token cost

About 2,004 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http leakdata-mcp https://leakdata.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.leakdata-mcp]
url = "https://leakdata.io/mcp"

Gemini CLI

{"mcpServers":{"leakdata-mcp":{"httpUrl":"https://leakdata.io/mcp"}}}

Cursor

{"mcpServers":{"leakdata-mcp":{"url":"https://leakdata.io/mcp"}}}

VS Code

{"servers":{"leakdata-mcp":{"type":"http","url":"https://leakdata.io/mcp"}}}

Antigravity

agy mcp add leakdata-mcp https://leakdata.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"leakdata-mcp","server_url":"https://leakdata.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"leakdata-mcp","server_url":"https://leakdata.io/mcp"}

Tools

• leakdata.action_plan ~198 tokens
  Use this when the linked LeakData user asks what they should do about their breaches, what is left on their list, or wants to be walked through the steps. Returns the open and done steps of the user's own action plan (for example "Change your password" on a breached site), each with a stepId, the se
• leakdata.breach_lookup ~404 tokens
  Use this when someone asks whether a company, app or website was hacked or had a data breach, what data leaked, whether a breach notice they received is real, or what to do about a breach they heard of ("Was Canva hacked?", "What leaked in the Ticketmaster breach?"). Searches LeakData's public breac
• leakdata.company_monitoring ~294 tokens
  Use this when someone asks about their own company or employer: whether it had a data breach, whether its domain, staff email addresses or work accounts appear in data breaches, or how to monitor a business domain. Explains what LeakData checks for a domain the company verifies it owns and returns a
• leakdata.mark_step_done ~282 tokens
  Use this only after the user says they completed (or want to reopen) a specific step from leakdata.action_plan, for example "I changed my Canva password". Pass that step's stepId from leakdata.action_plan and done=true, or done=false to reopen it; if no action plan result in this conversation contai
• leakdata.protection_summary ~192 tokens
  Use this when the linked LeakData user asks how their monitoring is going, what LeakData has found for them, or whether anything new turned up. Returns the user's own monitored email addresses (masked), when each was last checked, how many findings each has, new findings in the last 30 days, and a c
• leakdata.recent_breaches ~211 tokens
  Use this when someone asks which data breaches happened recently or what the latest breaches are. Returns the newest breaches in LeakData's public catalog, newest incident date first, with date, affected account count, exposed data types and first steps. No sign-in is needed. It has no date filter:
• leakdata.search ~423 tokens
  Use this when the linked LeakData user asks whether their own email was in a data breach ("Has my email been leaked?", "Am I in the Canva breach?", "Am I affected by any recent leaks?"). For a current check, call this tool and report only its returned results; never present earlier results as a new

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