How do I install MCPower Security Proxy?

Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does MCPower Security Proxy need an API key?

No required environment variable is listed on this record.

What transport does MCPower Security Proxy use?

MCPower Security Proxy runs locally over stdio.

When was MCPower Security Proxy last checked?

Last checked 2026-11-09. Security proxy that wraps MCP servers with real-time monitoring and policy enforcement

MCPower Security Proxy MCP server

Power your agent

Add this server

The publisher's own command. Not a PlugMCP endpoint.

Add to Cursor Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Local command

uvx mcpower-proxy==0.0.87

Claude Code has no install link for a local command. Copy the command below and run it in a terminal.

shClaude Code

1claude mcp add io.github.ai-mcpower-mcpower-proxy -- uvx mcpower-proxy==0.0.87

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "io.github.ai-mcpower-mcpower-proxy": {4      "command": "uvx",5      "args": [6        "mcpower-proxy==0.0.87"7      ]8    }9  }10}

claude_desktop_config.json

Local · pypiPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Local

Transport: stdio
Version: 0.0.87
Last checked

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Questions

Defenter

Real-time semantic security for AI coding agents and MCP tools in VS Code, Claude Code and Cursor.

Defenter monitors every prompt, every coding agent tool call, every MCP server call, and key file and shell operations in your IDE. It acts as a semantic policy broker that understands what agents are doing, not just where they send data, so you can use AI coding agents without leaking secrets or customer data.

🚀 How to use

The simplest way to use Defenter is to install the VS Code or Cursor extension:

VS Code Marketplace: Install Defenter
Open VSX (Cursor and others): Install Defenter
Claude Code: install Defenter plugin

Once installed, the extension automatically intercepts and protects:

MCP server calls
Coding agent prompts and responses
File reads and shell commands triggered by the agent

No manual MCP configuration is needed.

Overview

Defenter is a semantic policy broker for AI coding agents. It adds an intelligent security layer inside your IDE that:

Intercepts every coding agent prompt and action
Wraps every MCP tool call and response
Analyzes the payload for sensitive information and risky behavior in real time
Enforces your security policies with allow, redact, or block decisions

Traditional security tools cannot see what an agent is about to share or execute. They look at apps and destinations, not at the intent and content of an agent’s actions.

Defenter bridges this gap by:

Preventing data leaks and context contamination
Providing clear, visual monitoring of every agent decision

Architecture and how it works

This repository contains the Defenter proxy and related components that secure MCP and coding agent traffic.

Defenter is built as a Python based proxy and local middleware that the IDE extension uses to enforce policy. At a high level:

Local middleware layer
- Runs on the developer machine
- Hooks coding agent prompts, file reads, and shell executions
- Intercepts all MCP tool calls and responses
- Performs client side redaction of secrets and PII
Cloud powered policy engine
- Receives a minimal, redacted payload
- Uses a classifier and analyzer to check for data leaks, context contamination, and prompt injection
- Returns Allow, Redact, Need more info, or Block decisions in real time
- Works with low latency to make sure the development flow in without friction
IDE integration
- Seamless integration with VS Code and Cursor extensions
- Shows a live monitoring view of all agent actions and Defenter decisions directly inside the IDE

Together, these pieces let you harness AI coding agents and MCP tools without compromising the security of your code, data, or workflows.

References

Python Proxy: See src/README.md for detailed implementation documentation

VSC Extension: See targets/vsc-extension/README.md for installation and user guide

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install MCPower Security Proxy?

Does MCPower Security Proxy need an API key?

What transport does MCPower Security Proxy use?

When was MCPower Security Proxy last checked?

Documentation

Defenter

🚀 How to use

Overview

Architecture and how it works

References