Claude Receipts

A note from the author:

This has been one of my favourite creative side projects yet (and just in time for Opus 4.6).

I picked up a second hand receipt printer and hooked it up to Claude Code's SessionEnd hook. With some ccusage wrangling, a receipt is printed, showing a breakdown of that session's spend by model, along with token counts.

It's dumb, the receipts are beautiful, and I love it so much.

I hope you enjoy it too.

Full thermal receipt

HTML receipt

Installation

npx claude-receipts setup

This will:

• Configure the SessionEnd hook in your global ~/.claude/settings.json
• Create a config file at ~/.claude-receipts.config.json

From now on, every time you exit a Claude Code session, your receipt will be generated and opened in your browser.

Manual generation

Generate a receipt for your most recent session:

npx claude-receipts generate

Commands

generate

Generate a receipt for a Claude Code session.

# Generate for most recent session
npx claude-receipts generate

# Generate HTML (saved to ~/.claude-receipts/projects/)
npx claude-receipts generate --output html

# Print to thermal printer
npx claude-receipts generate --output printer --printer usb

# Multiple outputs (HTML + printer)
npx claude-receipts generate --output html,printer

# Specific session by UUID prefix
npx claude-receipts generate --session 9356d5e2

# Override location
npx claude-receipts generate --location "Paris, France"

Options:

• -s, --session <id> - Generate for a specific session ID or UUID prefix
• -o, --output <format> - Output format: "html", "console", or "printer" (supports multiple, comma-separated)
• -l, --location <text> - Override location detection
• -p, --printer <name> - Printer interface (e.g., "usb", "tcp://192.168.1.100")

Output Formats:

• html - Beautiful styled receipt saved to ~/.claude-receipts/projects/
• console - ASCII art display in terminal
• printer - Send to thermal printer (requires Epson TM-T88V or compatible)

setup

Configure automatic receipt generation.

# Run interactive setup
npx claude-receipts setup

# Uninstall the hook
npx claude-receipts setup --uninstall

This modifies ~/.claude/settings.json to add a SessionEnd hook that automatically generates receipts.

config

Manage your receipt configuration.

# Show current configuration
npx claude-receipts config --show

# Set a configuration value
npx claude-receipts config --set location="Kuala Lumpur, Malaysia"
npx claude-receipts config --set timezone="Asia/Kuala_Lumpur"
npx claude-receipts config --set printer=usb

# Reset to defaults
npx claude-receipts config --reset

Available settings:

• location - Default location (string)
• timezone - Timezone for dates (string, e.g., "Asia/Macau")
• printer - Default printer interface (string, e.g., "usb" or "tcp://192.168.1.100")

Configuration

Configuration is stored at ~/.claude-receipts.config.json.

Default configuration:

{
  "version": "1.0.0"
}

Optional settings:

• location - Custom location string (otherwise auto-detected)
• timezone - Custom timezone for date formatting
• printer - Default printer interface for thermal printing

Location Detection

Location is determined in this order:

1. --location flag (if provided)
2. Config file location setting
3. Auto-detection via IP geolocation (offline, using geoip-lite)
4. Fallback: "The Cloud"

How It Works

1. SessionEnd Hook: When you exit Claude Code, it calls npx claude-receipts generate --output html via stdin with the session ID
2. Data Collection: The package calls ccusage session --id <session-id> to get accurate session token/cost data
3. Transcript Parsing: Reads the session transcript JSONL to extract metadata (session name, timestamps, message count)

HTML output

4. Receipt Generation: If --output html is specified, generates a styled HTML receipt with token breakdowns by model
5. Output: Saves HTML to ~/.claude-receipts/projects/[session-name].html and/or prints to thermal printer
6. Auto-open: Opens the HTML receipt in your default browser automatically (hook mode only)

Printer output

1. Thermal Printing: If --output printer is specified, sends the receipt to a thermal receipt printer

Requirements

• Node.js >= 22.0.0
• Claude Code (for automatic generation)

Thermal Printing

claude-receipts supports printing to Epson TM-T88V thermal printers (and compatible models) via:

• USB: Auto-detect via --printer usb (or config --set printer=usb)
• Network: Direct TCP via --printer tcp://192.168.1.100

[!WARNING] Your mileage with printing may vary. I have tested with an Epson TM-T88V, printing from macOS and it works well, but other models may have different capabilities or require adjustments to the code. I am more than happy to accept PRs to improve printer compatibility.

The receipt includes:

• Claude ASCII logo
• Session details and location
• Token breakdown by model (input, output, cache read/write)
• Total cost
• QR code linking to the GitHub repo

Troubleshooting

"Cannot determine transcript path"

This means you're trying to manually generate a receipt but the most recent session doesn't have a valid project path. Solutions:

• Run from within a SessionEnd hook (use setup command)
• Work in a Claude Code session and let it auto-generate

"No session data found"

ccusage couldn't find any sessions. Make sure you've used Claude Code recently and that ccusage is working:

npx ccusage session --json

Hook not triggering

Check that the hook is installed:

cat ~/.claude/settings.json

You should see a SessionEnd hook pointing to claude-receipts.

Session shows wrong cost or is missing

Very short sessions (e.g., just "hello world" + immediate exit) may not appear in ccusage yet. The hook will exit silently rather than printing a wrong receipt. For sessions that exist, the package now uses ccusage session --id to fetch accurate totals rather than sub-session slices.

Printer not found

If using --printer usb, ensure:

• Printer is connected via USB
• Printer is an Epson TM-T88V or compatible ESC/POS model
• On Linux, you may need permission to access USB devices (/dev/usb/lp*)

For network printers, use --printer tcp://<ip-address> with port 9100 (default ESC/POS port).

Contributing

Roadmap

• HTML receipts with auto-open in browser
• Console ASCII art mode
• Real thermal receipt printing (Epson TM-T88V)
• Accurate session cost tracking (via ccusage --id)
• Session matching by UUID or prefix
• Image export (PNG/JPEG)
• Plugin for Opencode (opencode issue)

License

MIT