by MCP Defender Team
MCP Defender is a desktop app that protects AI apps by automatically proxying MCP tool call requests and responses through a security layer that checks for harmful signatures. It can be run by downloading the app or by cloning the repository and running via npm. No external data files are explicitly required.
Repository-wide counts · Cached 2026-06-05
The MCP Defender MCP server is a publicly available project. Review the upstream repository for installation instructions, supported tools, compatibility, permissions, and current maintenance status.
Configuration, transport, authentication, and runtime requirements vary by project. Open the repository before connecting and use the smallest set of credentials and permissions required.
Open the MCP Defender repository to read the latest documentation.
Compare source, connection, and authentication details before choosing an implementation.
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upstash
Context7 MCP server providing up-to-date, version-specific documentation and code examples for libraries, enabling coding agents to fetch accurate docs and code snippets. Requires an API key for higher rate limits, passed via CONTEXT7_API_KEY header.
Microsoft Corporation
A Model Context Protocol (MCP) server that provides browser automation capabilities using Playwright. Enables LLMs to interact with web pages through structured accessibility snapshots, bypassing the need for screenshots or visually-tuned models.
feder-cr
AIHawk is an anti detect browser and web browsing agent, open source, with an MCP server for coding agents: undetected, no captchas, no blocks. It requires an OpenRouter API key for the standalone web UI mode, which can be provided via the --openrouter-key flag or the OPENROUTER_API_KEY environment variable or a .env file in the running directory.
Build-time snapshot · Retrieved 2026-10-05
🛡️ MCP Defender is a desktop app that protects AI apps like Cursor from a variety of attacks.
🚦 All MCP tool call requests and responses from AI apps are automatically proxied through MCP Defender.
🔎 The intercepted data is then checked against a set of signatures.
🔐 If anything harmful is detected, MCP Defender alerts you and asks if you want to allow or block the tool call.
https://github.com/user-attachments/assets/363ae2b1-e395-4cdc-b5ca-e9862baf89c3
Alternatively you can clone the git repo, and run it as follows:
# Install dependencies
npm install
# Start app
npm start
MCP Defender protects Cursor, Claude, Visual Studio Code and Windsurf.
MCP Defender is licensed under the AGPL-3.0 license. For more details, see the LICENSE.