# Flat Flights Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Flat Flights

Find and verify business and first class fares, deals and miles options across long-haul routes.

- Record: https://musedirectory.ai/connector/flat-flights
- Category: Travel
- Developer: flat.flights (https://flat.flights/mcp-server/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 159ms, checked 2026-11-14T14:51:17Z
- Endpoint: https://flat.flights/mcp/
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-11-14T14:51:17Z)
- Source: Found in the official MCP Registry (flights.flat/business-class-fares) https://registry.modelcontextprotocol.io/v0/servers?search=flights.flat%2Fbusiness-class-fares

Connects to Aviasales fare data and live airline and OTA checks. Muse can search business and first class fares between cities, rank cheap destinations from a home airport, surface deals below route history, compare nearby departure hubs, weigh cash against miles and points, and open a booking link once dates are confirmed.

Example request: "Find me the cheapest business class round trip from Chicago to Milan in October and check whether the fare I saw is actually a good price."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Flat Flights to help me. It is a free service with an MCP server at https://flat.flights/mcp/. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- search_business_class_fares: Cheapest round-trip business class fare between two cities, with dates, stops, cheapest departure month, cheapest nonstop and one-way fares, nonstop flights seen (airline, flight, airports), a lie-flat assessment and a booking link that opens a search on the quoted fare's dates (
- cheapest_business_class_from: Long-haul destinations from a departure city ranked by cheapest round-trip business class fare. Use for "where can I fly business class cheaply from X".
- cheapest_business_class_to: Departure cities ranked by cheapest round-trip business class fare to a destination. Use for "cheapest place to fly business class to X from".
- business_class_deals: Long-haul business class routes currently priced at least 20% below their own daily price history or distance-band median, ranked by biggest discount. Optional `from` filters to one departure city.
- first_class_fares: First Class suites & flagship cabins (trip_class=2) round-trip fares on long-haul routes from Aviasales data, ranked cheapest first, with First Class booking links. Optional `from` filters to one departure city.
- check_business_or_first_price: Business class & First class price check: evaluates whether a fare quoted elsewhere (in EUR, round trip per adult) is a steal, good, fair or overpriced vs our daily route history and distance benchmark, and returns a cheaper Aviasales booking link if we observed a lower price.
- compare_departure_hubs: Business class & First class positioning comparison: checks nearby and same-country departure airports/cities to the same destination to find €500–€2,500+ savings (e.g. flying from Milan, Dublin, Warsaw or Madrid instead of London, Zurich or Frankfurt).
- cash_vs_miles_options: Business class miles & credit card transfer calculator: compares today’s cheapest cash fare on Aviasales with published/derived saver award bands across 19 airline programs (Avios, Flying Blue, Aeroplan, KrisFlyer, Miles & More, ANA, Skywards…) and 43 bank point programs (Amex, C
- verify_live_flight_offers: Real-time flight verification (~8 seconds): queries airlines and OTAs live for exact dates to confirm bookable EUR prices right now, operating airlines, flight numbers, widebody vs narrowbody aircraft on each leg, and a `directCheckoutLink` that opens the airline or OTA booking c

Screening checks:
- MCP handshake: pass (Answered in 159ms)
- Domain against threat feeds (Cloudflare security DNS): pass (flat.flights not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (9 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)