a2bflight fares
Find the cheapest flights on thousands of routes with historical fare data and round-trip options.
Searches cached flight fares across thousands of routes to show the cheapest one-way and round-trip options by date and month. Includes airport lookup and filters by price and departure month. Data is historical, not live quotes.
Try asking Muse: "Show me the cheapest flights from New York to London departing in March."
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Source: Found in the official MCP Registry (com.a2bflight/fares) · First listed October 28, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 h ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. 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.
https://mcp.a2bflight.com/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Also use it in ChatGPT or Claude
a2bflight fares is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
Add it to ChatGPT
- 1
Open ChatGPT settings
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
- 2
Turn on developer mode
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
- 3
Create the connector
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
- 4
Use it in a chat
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
Add it to Claude
- 1
Open Claude settings
In Claude, open Settings, then Connectors.
- 2
Add a custom connector
Choose Add custom connector, give it a name, and paste the link.
- 3
Connect and use it
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://mcp.a2bflight.com/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 425ms. Worked in 100% of checks over 30 days.
Screening · October 28, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 5
cheapest_routesThe cheapest cached fare on every route we hold from an origin (or into a destination), cheapest one-way first, each with its cheapest round trip of a 3 to 21 day stay in `return` when we hold one. Filter by a maximum price and a departure month here rather than by reading the lifind_airportsLook up airports and city codes by name, or list the airports near a code or a lat,lon point. Use it to turn a city name into the IATA code the other tools take.meet_linkA link to a2bflight.com's group page for people flying from different homes to meet in one place. Use it when the user already knows where; where_to_meet when they ask where. Without dates it picks the weekend whose round trips we have seen price everyone, with each fare and the route_faresEverything we hold for one airport pair: the cheapest one-way, the cheapest round trip of a 3 to 21 day stay, the cheapest one-way by departure date and by month, and the cheapest round trips. When we hold no fare for the pair, it looks the route up at our fare source; if the farwhere_to_meetWhere 2 to 8 people flying from different homes can meet cheapest: the places every home has a route into, each with a weekend whose cached round trips price everyone, each person's fare, the total, and meet_url — the group's page with all of it filled in. A place with a warning Recent checks
Link
https://mcp.a2bflight.com/mcpQuestions about a2bflight fares in Muse
How do I connect a2bflight fares to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use a2bflight fares to help me. It is a free service with an MCP server at https://mcp.a2bflight.com/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.
Is a2bflight fares working right now?
At the last check (October 29, 2026, 09:45 UTC) the endpoint was working, answering in 425ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is a2bflight fares safe to connect to Muse?
It was screened on October 28, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can a2bflight fares do in Muse?
It exposes 5 tools, including cheapest_routes, find_airports, meet_link, route_fares. For example, you could ask Muse: "Show me the cheapest flights from New York to London departing in March."
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This listing was added from public sources (Found in the official MCP Registry (com.a2bflight/fares)). If you build a2bflight fares, claim it to correct the details and get your badge.
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