H
HIBP
Verified IntegrationAuthor: @Cyreslab-AI•Category: ServerApplication
JSON-RPC 2.0
Protocol Standard
Sub-second
Execution Latency
Active
Operational Status
Client Configuration
— Connect HIBP to Claude Desktop or Cursor in seconds{
"mcpServers": {
"hibp": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-hibp"
],
"env": {}
}
}
}Paste into
~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).Architecture & Capabilities
System Overview
Checks for exposed accounts or passwords via the Have I Been Pwned API.
Indexed Date
7/23/2026
License
Open Source
Protocol Layer
stdio / SSE RPC
Frequently Asked Questions
Architecture and operational details for HIBP
The password check uses k-anonymity, a technique where only the first five characters of the SHA-1 hash of your password are sent to the API, preventing your full password from being exposed.
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