Certindex Mcp

Overview

Certindex Mcp is a Model Context Protocol server that brings Certificate Transparency search directly into AI agents. It retrieves certificates, discovers subdomains, tracks issuance history, and checks expiry dates—all callable as tools within your AI assistant instead of requiring manual lookups across separate platforms.

The server runs locally via the certindex-mcp package installed with uvx. It communicates with your MCP client over stdio and requires the CERTINDEX_API_KEY environment variable for authentication. Version v0.2.0 is published under the MIT license with source code available at certindex/certindex-mcp on GitHub.

Certindex Mcp belongs in the AI & Agents category on mcp.site. It works with any MCP client including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this server, claim this listing to verify ownership and keep information current.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "certindex_mcp": {
      "command": "uvx",
      "args": [
        "certindex-mcp"
      ],
      "env": {
        "CERTINDEX_API_KEY": "<certindex-api-key>"
      }
    }
  }
}

Requires CERTINDEX_API_KEY