LetsFG
Agent-native flight & hotel search and booking — MCP server, CLI, and Python/JS SDKs. Hundreds of airlines plus the major booking sites, with per-flight reliability history. Free-cancellation hotel rates: hold the room with a small upfront charge, then pay the balance later by link, up to the hotel'
LetsFG is an MCP server that enables AI agents to search and book flights across hundreds of airlines and major booking sites, plus hotel reservations. Built for integration with Claude, ChatGPT, Cursor, and Windsurf, it provides real-time flight availability with pricing that avoids OTA markups and tracking inflation. The service offers free search functionality when you connect a payment method, returning actual airline PNRs for bookings rather than redirects to third-party sites.
Key Features
Use Cases
- 01AI agents autonomously finding and booking the cheapest flight for a given route and date
- 02Travel planning assistants comparing multi-airline itineraries with self-transfer options
- 03Automated expense management tools booking business travel at the lowest available fares
- 04Hotel reservation agents securing accommodation with flexible cancellation policies
- 05Multi-city trip planners combining flight and hotel bookings through a single interface
- 06Price comparison workflows that avoid cookie-based surge pricing from traditional OTAs
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LetsFG — FAQ
What is the LetsFG MCP server?+
LetsFG is an MCP server that gives AI agents the ability to search hundreds of airlines and booking sites for flights and hotels, then complete real bookings with actual airline PNRs. It integrates with Claude Desktop, Cursor, Windsurf, and other MCP-compatible clients.
How do I install the LetsFG MCP server in Claude Desktop?+
Add https://letsfg.co/developers/api/mcp as a remote MCP server in your client configuration. When you approve the connection, you'll be redirected to letsfg.co/connect to add a payment method (nothing is charged). Search is then free, and booking holds the fare on your card until a real PNR is confirmed.
Which AI clients work with LetsFG?+
LetsFG supports Claude Desktop, Claude Code, ChatGPT (with custom connector), Cursor, Windsurf, and any MCP-compatible client. It also offers Python and JavaScript SDKs for script-based integrations.
Do I need an API key to use LetsFG?+
For the MCP server and free search, you only need to connect a payment method once at letsfg.co/connect (no charge). For high-volume commercial use, the separate Developer API requires registration and prepaid credits, but most agent users don't need this.
Is LetsFG free to use?+
Flight and hotel search is free after connecting a payment method. Booking holds the displayed fare on your card and charges only when a real airline PNR is confirmed; there's no separate booking fee or markup added at checkout.
What happens when I book a flight through LetsFG?+
The fare plus LetsFG's margin is held (not charged) on your connected card. A LetsFG booking agent purchases the ticket from the airline, and the hold is captured only once a real PNR exists. You receive the airline confirmation via email within 4-11 minutes.
How do I install LetsFG?+
Open the source repository on GitHub and follow its README. LetsFG is a mcp server — MCP Agents Market links you directly to the official repo.
Is LetsFG free?+
LetsFG is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.