flightclaw

FlightClaw agents: book flights with AI

Search, price-track and book flights from your AI assistant. FlightClaw is an AI flight booking agent and MCP server for Claude, ChatGPT, Cursor, VS Code and any MCP client. It covers about 300 airlines, finds cheap flights, remembers your travellers and preferences, and works as a flight price tracker that emails you when a tracked fare drops. Learn more at flightclaw.com.

Skills

Agent skills for the hosted MCP server (https://mcp.flightclaw.com/mcp). Each skill tells the agent which tools to call, in which order, and when to ask the user first.

The root SKILL.md covers the local open-source server.

Option 1: Hosted MCP (recommended)

Server URL: https://mcp.flightclaw.com/mcp (streamable HTTP, OAuth sign-in). Nothing to install.

Hosted tools

Booking and payment

1. search_flights returns offers. Each total_amount includes the FlightClaw booking fee.
2. create_checkout returns a checkout_url and the exact total_amount + total_currency. Nothing is charged yet.
3. Pay one of two ways:
   • Checkout link: the traveller opens checkout_url and pays by card.
   • Link virtual card: the agent creates a Link spend request for exactly total_amount (fare + booking fee), the user approves it in Link, and the agent pays on checkout_url with the Link virtual card. The agent never pays more than the approved amount.
4. get_checkout_status until completed, then get_order for the booking reference.

The agent never asks for card numbers.

Option 2: Local open-source server

The rest of this README covers the self-hosted Python server in this repo. It searches Google Flights and tracks prices locally with no account.

Local MCP server

FlightClaw runs as a local MCP server, giving any MCP-compatible client (Claude Code, Claude Desktop, etc.) access to flight search and tracking tools.

Setup

# Install dependenciespip install "flights==0.9.0" "mcp[cli]<2" fastmcp pydantic-settings
# Add to Claude Codeclaude mcp add flightclaw -- python3 /path/to/agents/server.py

Or in Claude Desktop, add to claude_desktop_config.json:

{  "mcpServers": {    "flightclaw": {      "command": "python3",      "args": ["/path/to/agents/server.py"]    }  }}

Tools

Search filters

All search tools support:

• Passengers - adults, children, infants (in seat or on lap)
• Airlines - filter to specific carriers (e.g. BA,AA,DL)
• Price limit - max price in USD
• Duration - max total flight time in minutes
• Times - earliest/latest departure and arrival hours
• Layovers - max layover duration in minutes
• Sorting - by BEST, CHEAPEST, DEPARTURE, ARRIVAL, or DURATION
• Multi-airport - comma-separated codes (e.g. LHR,MAN)
• Date ranges - date_to for searching each day in a range

Example prompts

• "Search flights from LHR to JFK on 2025-08-01 in business class"
• "Find nonstop BA or VS flights LHR to JFK departing after 8am"
• "What are the cheapest dates to fly LHR to JFK in July?"
• "Search for 2 adults and 1 child, LHR to JFK, under $500"
• "Track LHR to SFO on 2025-07-01 with a target price of $400"
• "Check my tracked flights for price drops"

CLI Scripts

The original CLI scripts are still available in scripts/:

# Search flightspython scripts/search-flights.py LHR JFK 2025-07-01 --cabin BUSINESS
# Multiple airports and date rangespython scripts/search-flights.py LHR,MAN JFK,EWR 2025-07-01 --date-to 2025-07-05
# Track a routepython scripts/track-flight.py LHR JFK 2025-07-01 --target-price 400
# Check for price drops (good for cron)python scripts/check-prices.py --threshold 5
# List tracked flightspython scripts/list-tracked.py

How it works

• Queries Google Flights via the fli library
• Prices returned in user's local currency (auto-detected from IP)
• Price history persists in data/tracked.json
• Supports one-way and round trips, all cabin classes (economy to first)
• Filter by airline, price, duration, departure/arrival times, layover duration
• Multi-airport and date-range searches expand into all combinations
• Date search finds the cheapest day to fly across a range

Install (OpenClaw)

npx skills add flightclaw/agents

Install (Grok)

/plugin marketplace add xai-org/plugin-marketplace/plugin install flightclaw

Install (Claude Code)

/plugin marketplace add flightclaw/agents/plugin install flightclaw@flightclaw

Install (Cursor)

/plugin marketplace add flightclaw/agents/plugin install flightclaw

Install (Gemini CLI)

gemini extensions install https://github.com/flightclaw/agents

Each client reads its own manifest from this repo — .grok-plugin/, .claude-plugin/, .cursor-plugin/ and gemini-extension.json — and they all connect to the hosted server at https://mcp.flightclaw.com/mcp. To run the local server instead, use the setup in "Local MCP server" above.

The local server

The local server runs server.py through uv, which resolves the pinned dependencies at start-up. Install uv first; no other setup step runs on your machine.

What the local server reaches, and what it needs

Search and price tracking need no credentials. HOST and PORT are only read in HTTP transport mode.

FlightClaw reads no other environment variable, writes only to its own data/ directory, and runs no install-time script.

License

MIT — see LICENSE.