🎯 Claude Code Usage Monitor

A beautiful real-time terminal monitoring tool for Claude AI token usage. Track your token consumption, burn rate, and get predictions about when you’ll run out of tokens.

📑 Table of Contents

• ✨ Features
• 🚀 Installation
  • Prerequisites
  • Quick Setup
• 📖 Usage
  • Basic Usage
  • Specify Your Plan
  • Custom Reset Times
  • Timezone Configuration
  • Exit the Monitor
• 📊 Understanding Claude Sessions
  • How Sessions Work
  • Token Reset Schedule
  • Burn Rate Calculation
• 🛠️ Token Limits by Plan
• 🔧 Advanced Features
  • Auto-Detection Mode
  • Smart Pro Plan Switching
• ⚡ Best Practices
• 🐛 Troubleshooting
• 🚀 Example Usage Scenarios
• 🤝 Contributing
• 📝 License
• 🙏 Acknowledgments

✨ Features

• 🔄 Real-time monitoring – Updates every 3 seconds with smooth refresh
• 📊 Visual progress bars – Beautiful color-coded token and time progress bars
• 🔮 Smart predictions – Calculates when tokens will run out based on current burn rate
• 🤖 Auto-detection – Automatically switches to custom max when Pro limit is exceeded
• 📋 Multiple plan support – Works with Pro, Max5, Max20, and auto-detect plans
• ⚠️ Warning system – Alerts when tokens exceed limits or will deplete before session reset
• 💼 Professional UI – Clean, colorful terminal interface with emojis
• ✨ No screen flicker – Smooth updates without clearing the entire screen
• ⏰ Customizable reset times – Set your own token reset schedule

🚀 Installation

Prerequisites

1. Python 3.6+ installed on your system
2. pytz Python package:
3. ccusage CLI tool installed globally:

Quick Setup

# Clone the repository
git clone https://github.com/Maciek-roboblog/Claude-Code-Usage-Monitor.git
cd Claude-Code-Usage-Monitor

# Make the script executable
chmod +x ccusage_monitor.py

# Run the monitor
./ccusage_monitor.py

📖 Usage

Basic Usage

Run with default settings (Pro plan – 7,000 tokens):

💡 Smart Detection: When tokens exceed the Pro limit, the monitor automatically switches to custom_max mode and displays a notification.

Specify Your Plan

# Pro plan (~7,000 tokens) - Default
./ccusage_monitor.py --plan pro

# Max5 plan (~35,000 tokens)
./ccusage_monitor.py --plan max5

# Max20 plan (~140,000 tokens)
./ccusage_monitor.py --plan max20

# Auto-detect from highest previous session
./ccusage_monitor.py --plan custom_max

Custom Reset Times

Set a custom daily reset hour (0-23):

# Reset at 3 AM
./ccusage_monitor.py --reset-hour 3

# Reset at 10 PM
./ccusage_monitor.py --reset-hour 22

Timezone Configuration

The default timezone is Europe/Warsaw. You can change it to any valid timezone:

# Use US Eastern Time
./ccusage_monitor.py --timezone US/Eastern

# Use Tokyo time
./ccusage_monitor.py --timezone Asia/Tokyo

# Use UTC
./ccusage_monitor.py --timezone UTC

# Use London time
./ccusage_monitor.py --timezone Europe/London

Exit the Monitor

Press Ctrl+C to gracefully exit the monitoring tool.

📊 Understanding Claude Sessions

How Sessions Work

Claude Code operates on a 5-hour rolling session window system:

• Sessions start with your first message to Claude
• Sessions last for exactly 5 hours from that first message
• Token limits apply within each 5-hour session window
• Multiple sessions can be active simultaneously

Token Reset Schedule

Default reset times (in your configured timezone, default: Europe/Warsaw):

• 04:00, 09:00, 14:00, 18:00, 23:00

⚠️ Important: These are reference times. Your actual token refresh happens 5 hours after YOUR first message in each session.

🌍 Timezone Note: The default timezone is Europe/Warsaw. You can change it using the --timezone parameter with any valid timezone name.

Burn Rate Calculation

The monitor calculates burn rate based on all sessions from the last hour:

• Analyzes token consumption across overlapping sessions
• Provides accurate recent usage patterns
• Updates predictions in real-time

🛠️ Token Limits by Plan

🔧 Advanced Features

Auto-Detection Mode

When using --plan custom_max, the monitor:

1. 🔍 Scans all previous session blocks
2. 📈 Finds the highest token count used
3. ⚙️ Sets that as your limit automatically
4. ✅ Perfect for users with varying token limits

Smart Pro Plan Switching

When using the default Pro plan:

• 🔍 Monitor detects when usage exceeds 7,000 tokens
• 🔄 Automatically switches to custom_max mode
• 📢 Shows notification of the switch
• ▶️ Continues monitoring with the new limit

⚡ Best Practices

1. 🚀 Start Early: Begin monitoring when you start a new session
2. 👀 Watch Velocity: Monitor burn rate indicators to manage usage
3. 📅 Plan Ahead: If tokens will deplete before reset, adjust your usage
4. ⏰ Custom Schedule: Set --reset-hour to match your typical work schedule
5. 🤖 Use Auto-Detect: Let the monitor figure out your limits with --plan custom_max

🐛 Troubleshooting

“Failed to get usage data”

• Ensure ccusage is installed: npm install -g ccusage
• Check if you have an active Claude session
• Verify ccusage works: ccusage blocks --json

“No active session found”

• Start a new Claude Code session
• The monitor only works when there’s an active session

Cursor remains hidden after exit

Display issues or overlapping text

• Ensure your terminal window is at least 80 characters wide
• Try resizing your terminal and restarting the monitor

🚀 Example Usage Scenarios

Morning Developer

# Start work at 9 AM daily
./ccusage_monitor.py --reset-hour 9

Night Owl Coder

# Often work past midnight
./ccusage_monitor.py --reset-hour 0

Heavy User with Variable Limits

# Let the monitor figure out your limits
./ccusage_monitor.py --plan custom_max

Quick Check with Default Settings

# Just run it!
./ccusage_monitor.py

International User

# Use your local timezone
./ccusage_monitor.py --timezone America/New_York
./ccusage_monitor.py --timezone Asia/Singapore
./ccusage_monitor.py --timezone Australia/Sydney

🤝 Contributing

Contributions are welcome! Feel free to:

• 🐛 Report bugs or issues
• 💡 Suggest new features
• 🔧 Submit pull requests
• 📚 Improve documentation

📊 Help Us Improve Token Limit Detection

We’re collecting data about actual token limits to improve the auto-detection feature. If you’re using Claude and your tokens exceeded the standard limits, please share your experience in Issue #1:

What to share:

• Your subscription type (Pro, Teams, Enterprise)
• The maximum tokens you reached (custom_max value)
• When the limit was exceeded
• Any patterns you’ve noticed

This data helps us better understand token allocation across different subscription tiers and improve the monitoring tool for everyone.

📝 License

MIT License – feel free to use and modify as needed.

🙏 Acknowledgments

This tool builds upon the excellent ccusage by @ryoppippi, adding a real-time monitoring interface with visual progress bars, burn rate calculations, and predictive analytics.

• 🏗️ Built for monitoring Claude Code token usage
• 🔧 Uses ccusage for data retrieval
• 💭 Inspired by the need for better token usage visibility