🧪 Flightclaw

Track flight prices using Google Flights data. Search flights, find cheapest dates, filter by airline/time/duration/price, track routes over time, and get alerts when prices drop. Also runs as an MCP

About

Track flight prices using Google Flights data. Search flights, find cheapest dates, filter by airline/time/duration/price, track routes over time, and get alerts when prices drop. Also runs as an MCP . This skill provides a specialized system prompt that configures your AI coding agent as a flightclaw expert, with detailed methodology and structured output formats.

Compatible with Claude Code, Cursor, GitHub Copilot, Windsurf, OpenClaw, Cline, and any agent that supports custom system prompts.

Example Prompts

Write tests Write unit tests for a user authentication function
Test strategy What testing strategy would you recommend for a REST API?

System Prompt (464 words)

flightclaw

Track flight prices from Google Flights. Search routes, monitor prices over time, and get alerts when prices drop.

Install

npx skills add jackculpan/flightclaw

Or manually:

bash skills/flightclaw/setup.sh

Scripts

Search Flights

Find flights for a specific route and date. Supports multiple airports and date ranges.
python skills/flightclaw/scripts/search-flights.py LHR JFK 2025-07-01
python skills/flightclaw/scripts/search-flights.py LHR JFK 2025-07-01 --cabin BUSINESS
python skills/flightclaw/scripts/search-flights.py LHR JFK 2025-07-01 --return-date 2025-07-08
python skills/flightclaw/scripts/search-flights.py LHR JFK 2025-07-01 --stops NON_STOP --results 10
# Multiple airports (searches all combinations)
python skills/flightclaw/scripts/search-flights.py LHR,MAN JFK,EWR 2025-07-01
# Date range (searches each day)
python skills/flightclaw/scripts/search-flights.py LHR JFK 2025-07-01 --date-to 2025-07-05
# Both
python skills/flightclaw/scripts/search-flights.py LHR,MAN JFK,EWR 2025-07-01 --date-to 2025-07-03

Arguments:

  • origin - IATA airport code(s), comma-separated (e.g. LHR or LHR,MAN)

  • destination - IATA airport code(s), comma-separated (e.g. JFK or JFK,EWR)

  • date - Departure date (YYYY-MM-DD)

  • --date-to - End of date range (YYYY-MM-DD). Searches each day from date to date-to inclusive.

  • --return-date - Return date for round trips (YYYY-MM-DD)

  • --cabin - ECONOMY (default), PREMIUM_ECONOMY, BUSINESS, FIRST

  • --stops - ANY (default), NON_STOP, ONE_STOP, TWO_STOPS

  • --results - Number of results (default: 5)


Track a Flight


Add a route to the price tracking list and record the current price. Supports multiple airports and date ranges (creates a separate tracking entry for each combination).

python skills/flightclaw/scripts/track-flight.py LHR JFK 2025-07-01
python skills/flightclaw/scripts/track-flight.py LHR JFK 2025-07-01 --target-price 400
python skills/flightclaw/scripts/track-flight.py LHR JFK 2025-07-01 --return-date 2025-07-08 --cabin BUSINESS
# Track multiple airports and dates
python skills/flightclaw/scripts/track-flight.py LHR,MAN JFK,EWR 2025-07-01 --date-to 2025-07-03 --target-price 400

Arguments:

  • Same as search-flights, plus:

  • --target-price - Alert when price drops below this amount


Check Prices


Check all tracked flights for price changes. Designed to run on a schedule (cron).

python skills/flightclaw/scripts/check-prices.py
python skills/flightclaw/scripts/check-prices.py --threshold 5

Arguments:

  • --threshold - Percentage drop to trigger alert (default: 10)


Output: Reports price changes for tracked flights. Highlights drops and alerts when target prices are reached.

List Tracked Flights

Show all flights being tracked with current vs original prices.
python skills/flightclaw/scripts/list-tracked.py

MCP Server

FlightClaw also runs as an MCP server with extended search capabilities:

pip install flights "mcp[cli]"
claude mcp add flightclaw -- python3 server.py

MCP tools: search_flights, search_dates, track_flight, check_prices, list_tracked, remove_tracked

Additional MCP filters: passengers (adults/children/infants), airline filter, price limit, max flight duration, departure/arrival time restrictions, layover duration, sort order, and cheapest-date calendar search.

Currency

Prices are returned in the user's local currency based on their IP location. The currency is auto-detected from the Google Flights API response and displayed with the correct symbol (e.g. $, £, ฿, €). Tracked flights store the currency code in tracked.json.

Data

Price history is stored in skills/flightclaw/data/tracked.json and persists via R2 backup.

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