mcpfz-probe is an open-source Python command-line tool that provides a runtime sidecar protocol and monitoring capabilities for fuzzing MCP servers. It helps developers and testers improve the reliability and security of their MCP server implementations through automated fuzz testing and runtime analysis.
mcpfz-probe is a CLI tools & terminal product. Enabling developers to monitor and fuzz MCP servers for improved reliability and security. mcpfz-probe is an open-source project aimed at developers and testers working with MCP servers. The project is open source (MIT). mcpfz-probe is available on the command line.
mcpfz-probe first shipped in 2026. The project is developed in the open on GitHub with 15 commits in the last 90 days. Across PulseGate's embedding index, mcpfz-probe has few near neighbours, marking it as relatively distinct. Among its 5 catalogued features are MCP server fuzzing, runtime sidecar protocol, and Python CLI.
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