Claude Code Usage Monitor: Track AI Token Costs in VSCode

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Atsushi Suzuki has released a new VSCode extension called Claude Code Usage Monitor, designed to help developers track Claude API token usage and costs in real time. This tool is particularly useful for those running AI experiments, managing in-house projects, or monitoring Claude-related expenses.

🔗 Download Here: Claude Code Usage Monitor – Visual Studio Marketplace

You Should Know:

How to Install & Use the Extension

1. Install via VSCode Marketplace:

code --install-extension claude-code-usage-monitor

Or search for “Claude Code Usage Monitor” in the VSCode Extensions view (Ctrl+Shift+X).

2. Configure API Key:

  • Obtain your Claude API key from Anthropic’s Console.
  • Add it to VSCode settings (settings.json): 
    "claude.apiKey": "your-api-key-here"

3. Monitor Usage in Real Time:

  • The extension logs token consumption per request.
  • Displays estimated costs based on Claude’s pricing model.

4. Check Cost Reports:

  • Open the extension panel (Ctrl+Shift+P → “Claude: Show Usage Report”).

Automate Usage Tracking with Scripts

For advanced users, integrate with Bash/Python for automated logs:

Bash Script to Export Usage Data

!/bin/bash 
 Fetch Claude usage logs from VSCode 
LOGFILE="$HOME/.vscode/extensions/claude-monitor/logs/usage.log" 
if [ -f "$LOGFILE" ]; then 
awk '{print "Time:", $1, "Tokens:", $2, "Cost:", $3}' "$LOGFILE" 
else 
echo "Claude logs not found. Is the extension active?" 
fi

Python Script for Cost Analysis

import pandas as pd 
data = pd.read_csv("~/.vscode/extensions/claude-monitor/logs/usage.csv") 
print(f"Total Tokens: {data['tokens'].sum()}") 
print(f"Estimated Cost: ${data['cost'].sum():.2f}")

What Undercode Say

The Claude Code Usage Monitor is a must-have for developers leveraging Claude AI in VSCode or Cursor. By tracking token usage, teams can optimize costs and avoid unexpected bills. For broader AI cost management, consider these Linux commands to monitor system resources:

 Monitor CPU/Memory usage of VSCode 
top -p $(pgrep -f "code --type=renderer")

Check network traffic (Claude API calls) 
sudo tcpdump -i any -n port 443 | grep "anthropic"

For Windows users, PowerShell can audit API calls:

Get-NetTCPConnection -RemotePort 443 | Where-Object {$_.RemoteAddress -like "anthropic.com"}

🔗 Further Reading:

Prediction

As AI-assisted coding grows, expect more real-time cost-tracking tools for GitHub Copilot, Gemini Code Assist, and other AI dev tools.

Expected Output:

A detailed guide on Claude Code Usage Monitor, including setup, automation scripts, and system monitoring commands.

IT/Security Reporter URL:

Reported By: Suzuki 09b7171a2 – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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