CLI ToolsMay 13, 2026·2 min read

claude-tap — Trace Claude/Cursor CLI API Calls

claude-tap captures API traffic from Claude Code, Codex CLI, Cursor CLI, etc., and renders prompts and tool calls in a trace viewer. Verified 321★.

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Agent ready

Safe staging for this asset

This asset is staged first. The copied prompt tells the agent to inspect the staged files and ask before activating scripts, MCP config, or global config.

Stage only · 17/100Policy: stage
Agent surface
Any MCP/CLI agent
Kind
CLI Tool
Install
Stage only
Trust
Trust: Established
Entrypoint
Asset
Safe staging command
npx -y tokrepo@latest install e8cd370e-04a3-5f5a-a67b-6ac60d65415a --target codex

Stages files first; activation requires review of the staged README and plan.

Intro

claude-tap captures API traffic from Claude Code, Codex CLI, Cursor CLI, etc., and renders prompts and tool calls in a trace viewer. Verified 321★.

Best for: Teams debugging agent behavior (prompts/tools/history) across multiple coding CLIs

Works with: Claude Code, Codex CLI, Cursor CLI, Gemini CLI, OpenCode; Python 3.11+ (uv/pip install)

Setup time: 6-12 minutes

Key facts (verified)

  • GitHub: 321 stars · 46 forks · pushed 2026-05-13.
  • License: MIT · owner avatar + repo URL verified via GitHub API.
  • README-verified entrypoint: uv tool install claude-tap && claude-tap --tap-live.

Main

  • Use it as a cross-client debugger: README lists multiple supported coding CLIs and shows how to switch via --tap-client.

  • Turn on live mode when you need to inspect traces while the agent is running (--tap-live in README).

  • Capture first, optimize later: use traces to identify prompt bloat, tool misuse, and token spikes before changing your agent policies.

Source-backed notes

  • README says it intercepts API traffic from Claude Code, Codex CLI, Gemini CLI, OpenCode, and Cursor CLI and visualizes traces.
  • README recommends install via uv tool install claude-tap and also supports pip install.
  • README documents usage examples like claude-tap --tap-client codex and forwarding args after --.

FAQ

  • Do I need to modify my CLI tools?: No — README shows running clients through claude-tap without patching them.
  • Can I trace Codex CLI OAuth mode?: Yes — README notes Codex auth modes and shows examples; you may set a target explicitly if needed.
  • What Python version is required?: README lists Python 3.11+ for installation and usage.
🙏

Source & Thanks

Source: https://github.com/liaohch3/claude-tap > License: MIT > GitHub stars: 321 · forks: 46

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