We're LetsFG — a community of travelers.

Finding a flight shouldn't mean checking 47 websites. Or 3 hours of searching. Or having that feeling you could've got a better deal if you'd just waited a little longer.

So we built something about it. No markup. No tracking. No price that goes up because you looked twice.

Join the community. Help others find cheaper flights. Spread the word.⭐ Star the repo. Share with a friend ✈️

Your AI agent just learned to book flights.

400+ airlines. Real prices. One function call.

LetsFG gives your AI agent flight search and booking superpowers. 200+ connectors fire in parallel on your machine, scanning the entire world for the cheapest price. Zero markup. Real airline tickets.

The same flight costs $20–$50 less because you skip OTA inflation, cookie tracking, and surge pricing.

Supporters

Three ways to use LetsFG

• Local (Path 1): Fires 200+ airline connectors on your machine via Playwright. No API key required, search is free. Results include offer_ref and payment_token alongside masked booking links. To receive the direct airline URL, use the concierge unlock flow (1% fee, min $3) — the same letsfg.co checkout system as the website.

• letsfg.co (Path 2): Purpose-built for agents (OpenClaw, Claude, GPT, etc.) and humans who need instant results without installing anything. The website is protected by Cloudflare Turnstile — programmatic agents must register a free Bearer token (90-day, tied to a Twitter/X account) to search: POST https://letsfg.co/api/agent-access/request → tweet the challenge → POST https://letsfg.co/api/agent-access/verify → use POST https://letsfg.co/api/search with Authorization: Bearer <token>. Human users search normally via the browser. To get the direct booking link, call POST https://letsfg.co/api/developers/checkout with the offer_id, offer_ref, payment_token, and price — this returns a Stripe checkout URL. After paying the 1% fee (min $3.00), poll GET https://letsfg.co/api/developers/payment-verify?token={payment_token} until verified: true to receive the booking_url. Full guide: https://letsfg.co/for-agents

• Developer API (Path 3): Server-side search at letsfg.co/developers with prepaid credits. Returns direct airline booking URLs with no concierge fee and no checkout step. Best for teams and products at volume.

Want direct airline URLs without any per-booking fee? Sign up for the Developer API at letsfg.co/developers. Prepaid credits, results in seconds, no checkout layer.

Related MCP server: Flights MCP

Real prices: LetsFG vs Google Flights

We searched 5 routes on Google Flights and LetsFG on the same day (June 15, 2026). Same airline, same itinerary — LetsFG was cheaper every time:

$116 saved across 6 flights. Google Flights inflates further on repeat searches. LetsFG returns the raw airline price every time.

Why the difference? Google Flights only searches its own limited set of airline partners. LetsFG searches everywhere — 200+ connectors including Skyscanner, Kiwi, Kayak, Momondo, plus direct airline websites (Ryanair, United, Southwest, EasyJet, Spirit, Norwegian, AirAsia, and 190+ more). More sources = better prices. And unlike travel websites, LetsFG returns the raw price with zero markup, no tracking, no inflation.

Try it right now — no install needed

Human users: Use letsfg.co and search flights instantly in your browser:

🌐 Search on letsfg.co

Search any route, compare live results, and unlock the booking links for the flights you want — no installation needed.

Agents / scripts: Register a free Bearer token via Twitter/X → use POST /api/search. See letsfg.co/for-agents for the full guide.

When you're ready to integrate it into your own agent, keep reading.

Pricing

Local search = free. The CLI, Python SDK, npm packages, and local MCP server run 200+ connectors on your machine. No API key needed. Searches take 1–15 minutes. Booking links are routed through letsfg.co — the same 1% concierge fee (min $3) applies as on the website.

Developer API = prepaid, business use. letsfg.co/developers runs searches server-side — no local Playwright, no wait, results in seconds. Built for products and teams. Prepaid credits.

letsfg.co = free search + small unlock fee. Search is free, and when you unlock a search you get the booking links for all flights from that search. Purpose-built for agents (OpenClaw etc.) that can't run local browser automation.

💡 Know someone who travels? The more people discover LetsFG, the more airlines we cover — and the better it gets for everyone. ⭐ Star · Share with a friend

Why developers star this repo

Get started in 30 seconds

pip install letsfg

Search flights immediately — no API key, no registration, no account needed:

letsfg search LHR BCN 2026-06-15

That single command fires 200+ connectors on your machine and returns real-time prices from 400+ airlines. Free. Unlimited. Zero setup.

Short on time? Use --mode fast to search only OTAs + key airlines (~25 connectors, 20-40s instead of 6+ min):

letsfg search LHR BCN 2026-06-15 --mode fast

Flying business or first? Filter by cabin class — only get results that match:

letsfg search LHR JFK 2026-06-15 --cabin C    # business class
letsfg search LHR JFK 2026-06-15 --cabin F    # first class
letsfg search LHR JFK 2026-06-15 --cabin W    # premium economy

Want to unlock and book? Star the repo for free access:

# Star the repo on GitHub, then verify
letsfg star --github your-username

The CLI auto-registers behind the scenes and saves your API key to ~/.letsfg/config.json. No manual steps.

# Search (free, unlimited)
letsfg search LON BCN 2026-04-01 --return 2026-04-08 --sort price

# Unlock (confirms live price, holds for 30 min — free)
letsfg unlock off_xxx

# Book (ticket price only, zero markup)
letsfg book off_xxx \
  --passenger '{"id":"pas_0","given_name":"John","family_name":"Doe","born_on":"1990-01-15","gender":"m","title":"mr"}' \
  --email john.doe@example.com

💡 Like what you see? Support us — ⭐ Star · Share with a friend

Works everywhere your agent runs

MCP Server (Claude Desktop / Cursor / Windsurf / OpenClaw)

{
  "mcpServers": {
    "letsfg": {
      "command": "npx",
      "args": ["-y", "letsfg-mcp"]
    }
  }
}

That's it — search works immediately, no API key needed. 200+ connectors covering 400+ airlines run locally.

If you cloned the repo or run the SDK locally, stay on this path. You do not need to register for the paid public developer API to use local connectors, and local searches can still feed analytics and telemetry.

{
  "mcpServers": {
    "letsfg": {
      "command": "npx",
      "args": ["-y", "letsfg-mcp"],
      "env": {
        "LETSFG_API_KEY": "trav_your_api_key"
      }
    }
  }
}

Get a key: letsfg register --name my-agent --email you@example.com

5-minute quickstarts: Claude Desktop · Cursor · Windsurf

Python SDK

from letsfg import LetsFG

bt = LetsFG()  # reads LETSFG_API_KEY from env
flights = bt.search("LHR", "JFK", "2026-04-15")
print(f"{flights.total_results} offers, cheapest: {flights.cheapest.summary()}")

JavaScript SDK

import { LetsFG } from 'letsfg';

const bt = new LetsFG({ apiKey: 'trav_...' });
const flights = await bt.search('LHR', 'JFK', '2026-04-15');
console.log(`${flights.totalResults} offers`);

Local-only (no API key, no backend)

from letsfg.local import search_local

result = await search_local("GDN", "BCN", "2026-06-15")

# Fast mode — OTAs + key airlines only, 20-40s
result = await search_local("GDN", "BCN", "2026-06-15", mode="fast")

for offer in result.offers[:5]:
    print(f"{offer.airlines[0]}: {offer.currency} {offer.price}")

Install

CLI Commands

All commands accept --json for structured output and --api-key to override the env variable.

How it works

Search (free) → Unlock (free) → Book (ticket price only)

1. Search — 200+ local connectors fire in parallel on your machine, covering 400+ airlines. Filter by cabin class (economy, premium, business, first). Returns full details: price, airlines, duration, stopovers, conditions.

2. Unlock — confirms the live price with the airline and reserves the fare for 30 minutes. Two payment options: Stripe card (add once with letsfg setup-payment) or MPP crypto (agent-native — no card required, pays automatically via Tempo USDC.e on 402 challenge).

3. Book — creates a real airline PNR. E-ticket sent to the passenger's inbox.

All search runs locally via Playwright + httpx. Results are deduplicated, currency-normalized, and sorted. Best price wins.

The combo engine builds cross-airline round-trips by combining one-way fares from different carriers. A Ryanair outbound + Wizz Air return can save 30-50% vs booking a round-trip on either airline alone.

Search a city code and LetsFG automatically searches all airports in that city. LON expands to LHR, LGW, STN, LTN, SEN, LCY. NYC expands to JFK, EWR, LGA. Works for 25+ major cities worldwide.

Architecture

┌─────────────────────────────────────────────────────┐
│  AI Agents / CLI / SDK / MCP Server                 │
├─────────────────────────────────────────────────────┤
│  Local connectors (200+ connectors, 400+ airlines)  │
│  Ryanair, EasyJet, Spirit, Southwest, AirAsia, etc  │
├─────────────────────────────────────────────────────┤
│  Dedup + Combo Engine + Currency Normalization      │
│  (virtual interlining for cross-airline round-trips)│
├─────────────────────────────────────────────────────┤
│  Backend API (unlock, book, telemetry)              │
└─────────────────────────────────────────────────────┘

Star History

letsfg.co · API Docs · Connector Health · PyPI · npm · Smithery · Instagram · TikTok · X

Open source · MIT License · Made with ❤️ by travelers, for travelers

Want updates? Click Watch above, or follow LetsFG on Instagram, @letsfg_ on TikTok, or @LetsFG_ on X.