mcpsnoop

kerlenton/mcpsnoop

Wireshark for MCP: a transparent proxy that shows every JSON-RPC frame between your real client and MCP servers, live in your terminal. Worth including because MCP Inspector tests servers from its own client, so it can't see the calls your actual agent makes, misses, or hangs on — mcpsnoop sits in the real data path and makes those failures visible

Go MIT

View on GitHub → Find it in the atlas

Install

npm i -g mcpsnoop

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Screenshot

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Platform support

Derived from the project's own README, install route, CI configuration and release assets — not from running it.
PlatformRuns hereOn what evidence
WindowsYesStated in the project's own README, install route, CI config or release assets.
WSL2LikelyInferred from the language or runtime. Nothing in the project says so.
macOSYesStated in the project's own README, install route, CI config or release assets.
LinuxYesStated in the project's own README, install route, CI config or release assets.
DockerNoNo evidence of support anywhere in the project.

Where it came from

Named by 1 of the 39 lists the atlas merges.

How it is classified

One topic, 4 harnesses. Each link is a prerendered page of everything else in that slice.

Observability & EvalsClaude / AnthropicMCPCodex / OpenAICursor

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