MCP Defnder Product Information and latest Information (2025)

MCP Defnder is an open source desktop app that automatically prox your MCP traffic in AI apps such as cursor, cloud, wind surf and VS code. It then scans all the requests and reactions between apps and MCP tools what they call. If this shows someone malicious, it alerts you and allows you to call or block the call call. Although MCP risk landscape is still being actively investigated, there are dangerous things that the MCP defense can stop today. For example, a developer asks to fix the Gut Hub problem with a crash log attached to the cursor. However, the problem of Gut Hub was created by an attacker, which included secret instructions buried in the crash log. These instructions tell the cursor that the developer’s SSH Keys controls an invader on a server. The MCP Defnder detects malicious instructions and alerts the developer who may not be careful about running tool calls otherwise. Scanning is currently done through LLM and things are examined such as instant injection, credentials theft (SSH keys, tokens) and the implementation of discretionary code. You can use an MCP defnder account for LLM providers to perform scanning or provide your API keys for LLM providers. Currently we have published beta Mac Blood and we will soon publish Bloods for Windows and Linux. Any opinion will be greatly appreciated. Thank you