Re:Show HN: MCP Defender – OSS AI Firewall for Protecting MC...
by gsundeep on Saturday May 31, 2025 @03:21AM
(#44142569)
MCP Defender sits between the MCP client and server. If you use Cursor for example, MCP Defender rewrites your Cursor MCP config file so that all MCP servers point to the MCP Defender proxy. So the tool calls are scanned before they make it to the server. The responses from the servers are also scanned although this is configurable (disabling it speeds up scans).
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