Toolmux is an open-source CLI tool that aggregates multiple MCP (Model Context Protocol) servers, supporting HTTP/SSE and reducing schema token usage. It streamlines agent-based AI workflows for developers integrating multiple tools and protocols.
In the Autonomous agents & workflows space, toolmux takes a focused approach. It focuses on aggregating and optimizing communication between multiple MCP servers for agent-based AI workflows. It is built as an open-source project for AI agent developers and integrators. toolmux is open source under the MIT license. The product ships for the command line.
subnetangel builds and maintains toolmux, and the product first shipped in 2025. Development happens publicly on GitHub with 13 commits in the last 90 days. PulseGate's similarity index finds few close equivalents — toolmux occupies a relatively distinct niche. Key capabilities include MCP server aggregation, HTTP/SSE support, and schema token reduction. It exposes integrations via an MCP server.
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