Defenter Proxy Server

Transparent MCP wrapper with security middleware for real-time policy enforcement and visual monitoring.

python

3

GitHub Stars

python

Language

4 months ago

First Indexed

2 months ago

Catalog Refreshed

Documentation & install

Readme and setup notes from the catalogue, plus a client-ready config you can copy for your MCP host.

Installation

Add the following to your MCP client configuration file.

Configuration

View docs

{
  "mcpServers": {
    "defenter-ai-defenter-proxy": {
      "command": "defenter-proxy",
      "args": [
        "--name",
        "<wrapper-name>",
        "--wrapped-config",
        "<mcp-config-json>"
      ]
    }
  }
}

Defenter Proxy Server provides a transparent 1:1 MCP wrapper with security middleware to enforce policies in real time and visually monitor MCP traffic. It sits between AI clients and MCP servers to redact secrets, consult cloud policies, and obtain user confirmation for sensitive operations.

How to use

You will run the Defenter proxy to wrap your MCP servers so all client requests and responses pass through redaction and policy checks. The simplest usage pattern is to invoke the Defenter command to start the proxy with the target MCP configuration. When a policy requires confirmation or blocks an operation, a user dialog will appear to capture your choice before proceeding.

How to install

Prerequisites: ensure you have Python 3.11 installed on your system. The project declares dependencies managed by a Python project configuration (pyproject.toml). You may need a tool to install dependencies and run the proxy, such as a package manager or a build tool compatible with Python projects.

Additional sections

Configuration and operation details describe the proxy’s flow: it wraps an MCP server, intercepts requests, redacts secrets and PII client-side, consults a cloud policy engine with the redacted payload, and acts based on the policy decision and any required user confirmation. Visual monitoring logs are available to track MCP operations. The CLI provides a concrete way to start the proxy by supplying a wrapper name and the wrapped MCP configuration.

Available tools

Wrapper server

Creates a transparent 1:1 MCP wrapper that sits between AI clients and MCP servers.

Security middleware

Intercepts MCP operations to enforce security checks.

Redaction engine

Client-side redaction of secrets and PII before data is sent to Defenter cloud.

Policy engine integration

Cloud-powered policy decisions analyzed on redacted payloads with local user confirmation when required.

Monitoring module

Visual monitoring and logging of MCP operations.

UI dialogs

Cross-platform confirmation dialogs used to approve or block operations when policy requires user input.