LetsFG/LetsFG

What it solves

LetsFG provides a way for AI agents and developers to search and book flights and hotels without the price inflation, cookie tracking, and markups typically found on major travel sites. It aggregates data from hundreds of airlines and booking platforms to find the lowest possible wholesale costs.

How it works

The project operates as a server-side engine that scans multiple sources (including budget carriers and direct airline sites). It offers several integration paths:

• MCP Server: Allows AI agents (like Claude or ChatGPT) to search and book flights via a standardized protocol.
• PFS (Programmatic Flight Search): A raw API for scripts and agents using a card-backed Bearer token.
• SDKs: Python and JS libraries that apply ranking algorithms locally while using the server-side search engine.
• Developer API: A paid, high-volume commercial API that provides direct airline booking URLs.

For bookings, the system holds the fare on the user's card, a LetsFG booking agent completes the purchase, and the user receives a real airline PNR.

Who it’s for

• AI Agent Developers: Those building travel-capable agents using MCP or custom scripts.
• Frequent Travelers: Users looking for cheaper, stable flight and hotel prices without tracking-based surge pricing.
• Commercial Integrators: Businesses requiring high-volume, prepaid search capabilities.

Highlights

• Anti-Inflation: Prices remain stable across repeat searches because the system avoids cookie tracking.
• Agent-Ready: Native support for MCP (Model Context Protocol) for seamless integration into AI chat interfaces.
• Broad Coverage: Searches hundreds of airlines, including budget carriers often missed by major aggregators.
• Flexible Hotel Booking: Only sells free-cancellation, pay-later rates with a small upfront reservation fee.