Letsfg

LetsFG — Flights & Hotels

letsfg

Search and book flights and hotels: hundreds of airlines, plus bookable hotel rates.

LetsFG

Agent-native flight **and hotel** search and booking. One tool call searches hundreds of airlines plus the major booking sites — Google Flights, Skyscanner, Kiwi, Kayak, Momondo — and returns merged, deduplicated, ranked results with per-flight reliability history. Your agent doesn't need to build a travel integration. It doesn't need to scrape. Add this MCP server and it can search and book flights and hotels. ### Free, on one credential Run `letsfg auth` once — a zero-amount Stripe card setup, nothing charged, no authorization hold — and you get a 90-day token that reaches **both flights and hotels**. No Developer API account, no prepaid credits, no separate login for hotels. The same card authorises both products. ### Why? Flight websites inflate prices with demand tracking, cookie-based pricing, and surge markup. LetsFG returns the raw price with no demand-based inflation and no cookie tracking — the same search returns the same prices however often you run it. For hotels, you don't pay for the room upfront. A small charge holds the booking, and the balance goes straight to the hotel through a pay link, any time up to their own cancellation deadline. Only free-cancellation rates are sold, so every rate you see can actually be booked on those terms. ### How it works Search runs server-side at letsfg.co — no browsers, no scrapers on your machine. `search_flights` fans out across airline connectors and the major booking sites in parallel; `search_hotels` opens a real session at the supplier and returns live, bookable rates. ### Tools **Flights** | Tool | What it does | Cost | |------|-------------|------| | `search_flights` | Search hundreds of airlines and booking sites | Free | | `resolve_location` | City/airport → IATA code | Free | | `book_flight` | Book with real PNR + e-ticket | Ticket price only — no LetsFG fee | | `unlock_flight_offer` | Confirm live price and reserve. Legacy, Developer API only — not part of the agent flow; call `book_flight` directly | — | **Hotels** — need a card on file, because a hotel search opens a real session at the supplier. `letsfg auth` already puts one there. | Tool | What it does | Cost | |------|-------------|------| | `resolve_hotel_city` | Place name → supplier city id. Call this first | Free | | `search_hotels` | Live, bookable, free-cancellation pay-later rates | Free | | `book_hotel` | Book a rate. Returns a job id — poll, don't retry | 5% now, non-refundable; balance to the hotel later | | `get_hotel_booking` | Poll the booking job until it succeeds or fails | Free | | `cancel_hotel_booking` | Release a reservation | Free | **Account** | Tool | What it does | Cost | |------|-------------|------| | `authenticate` | Zero-amount card setup → 90-day token | Free, nothing charged | | `setup_payment` | Attach a Stripe payment method | Free | | `get_agent_profile` | Your usage & profile | Free | | `load_resources` | Load the in-server usage guide | Free | ### Auth Either credential reaches **both** flights and hotels: - **`LETSFG_BEARER_TOKEN`** — the free token from `letsfg auth`. Recommended. - **`LETSFG_API_KEY`** — a Developer API key (prepaid credits) from letsfg.co/developers, for high-volume commercial integrations. If both are set, the token is used. ### Pricing - **Flights** — search is free and unlimited. Booking charges the airline ticket price only, with no LetsFG fee. - **Hotels** — booking charges 5% of the price immediately as a non-refundable reservation fee. The balance is paid directly to the hotel through the pay link we return, by their own cancellation deadline. Cancel before that deadline and the balance was never charged. ### Links - **GitHub:** [github.com/LetsFG/LetsFG](https://github.com/LetsFG/LetsFG) — full docs, open-source ranking engine, architecture guide, agent integration tutorials - **API Docs:** [letsfg.co/developers/api/docs](https://letsfg.co/developers/api/docs) - **PyPI:** [pypi.org/project/letsfg](https://pypi.org/project/letsfg/) - **npm:** [npmj