Show HN: A MitM proxy to see what your LLM tools are sending
created: Jan. 28, 2026, 6:52 p.m. | updated: Jan. 29, 2026, 1:40 a.m.
SherlockLLM API Traffic Inspector & Token Usage DashboardInstallation • Quick Start • Features • Commands • ContributingSherlock is a transparent proxy that intercepts HTTPS traffic to LLM APIs and displays real-time token usage in a beautiful terminal dashboard.
Track your AI costs, debug prompts, and monitor context window usage across your development session.
Start Sherlocksherlock startOn first run, Sherlock will:Generate the mitmproxy CA certificatePrompt you to install it in your system trust storeAsk where to save intercepted prompts2.
Run Your LLM ToolsIn a separate terminal, use Sherlock to proxy your commands:# For Claude Code sherlock claude # For any command sherlock run --node your-llm-toolThat's it!
Watch the dashboard update in real-time as you interact with LLM APIs.
7 hours, 42 minutes ago: Hacker News