Security & Testing

xposedornot.com

An MCP server that queries the XposedOrNot breach index to check emails and domains for known data breaches and retrieve breach analytics and catalog data.

1 endpoint6 known toolsFirst detected October 3, 2026Last detected October 6, 2026

ENDPOINT 1

https://api.xposedornot.com/mcp

No auth detected

MCP server metadata

Name: XON_MCP
Version: 2.0.0

Capabilities

tools

Known tools 6

check_email_breaches

Check whether an email address appears in the XposedOrNot index of known public data breaches.

Potential side effects

get_breach_analytics

Get a detailed breach history for one email address: the breaches it appeared in with dates and descriptions, exposure broken down by industry and by year, risk scoring, and any paste exposure.

Potential side effects

list_breaches

List breaches in the XposedOrNot catalog, optionally filtered by the breached company domain or by a specific breach ID.

Inferred read-only

domain_breach_summary

Get an aggregate breach summary for a domain, including the number of breaches, affected email accounts, pastes, and the most recent breach date.

Potential side effects

get_breach_metrics

Get system-wide breach statistics: total breaches and records indexed, breaches per year and industry, the largest and most recent breaches, and when the latest breach was added.

Inferred read-only

get_recent_breaches

Get the breaches most recently added to XposedOrNot, newest first.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.xon_mcp]
url = "https://api.xposedornot.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "xon_mcp": {
      "type": "http",
      "url": "https://api.xposedornot.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: xon_mcp
Remote MCP URL: https://api.xposedornot.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "xon_mcp": {
      "url": "https://api.xposedornot.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "xon_mcp": {
      "type": "http",
      "url": "https://api.xposedornot.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "xon_mcp",
  "transport": "streamable-http",
  "url": "https://api.xposedornot.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.