Show HN: Mcpsnoop – Wireshark for MCP (transparent proxy and live TUI)

Category: devtools

Tags: mcp, debugging, proxy, tui, json-rpc

Score: 7.5/10 (Innovation: 7, Technical: 8, Documentation: 8, Utility: 7)

Mcpsnoop is a transparent proxy and terminal UI for debugging MCP (Model Context Protocol) traffic between AI clients and servers, acting like Wireshark for MCP. It provides live JSON-RPC stream inspection, replay capabilities, and a zero-config setup, filling a clear gap in debugging real-world AI tool calls.

Target audience: backend devs, ai engineers, devops

Repository: https://github.com/kerlenton/mcpsnoop · Go · MIT · 28 stars

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