Tool Filter MCP

Tool Filter MCP is an open-source MCP (Model Context Protocol) proxy server that allows developers and platform builders to filter out unwanted tools from upstream MCP servers via powerful regex-based deny lists. Designed to prevent context pollution and reduce unnecessary token usage in large-scale AI agent infrastructure, it supports both HTTP/SSE and stdio MCP connection modes, and offers advanced filtering, authentication, and tool discovery options. Ideal for teams deploying or managing multi-tool MCP environments who want efficient, clean, and controlled context engineering.