a2bflight fares MCP Server

by a2bflight Your server? Claim it

answering

a2bflight fares is answering right now. Last checked 9 min ago. It exposes 3 tools.

Cached flight fares on thousands of routes, each with the day it was seen. Not live prices. No key.

Uptime history 24 days of history

24 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

731 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check a2bflight fares every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add fares --transport http https://mcp.a2bflight.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcp.a2bflight.com/mcp

~/.codex/config.toml

[mcp_servers.fares]
url = "https://mcp.a2bflight.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "fares": {
      "url": "https://mcp.a2bflight.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "fares": {
      "type": "http",
      "url": "https://mcp.a2bflight.com/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

airports

find_airports

Look 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.

cheapest

cheapest_routes

The 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 list; both apply to the one-way. Prices are one adult, economy, as last seen on the date in `checked` — observations, not quotes.

route

route_fares

Everything 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. If we hold nothing yet, it starts pricing the route and says so; ask again a minute later.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.a2bflight.com/mcp	streamable-http	answering	672 ms	9 min ago

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a2bflight fares — questions

Answers built from our own checks of this server.

What can a2bflight fares do?

It exposes 3 tools, read directly from the server on our last check. Among them: cheapest_routes, find_airports, route_fares. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is a2bflight fares working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 731 ms. The bar chart above shows every period we have measured.

How do I connect a2bflight fares?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does a2bflight fares need an API key?

No. a2bflight fares completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is a2bflight fares?

It answers our handshake in 731 ms on average, which is faster than 14% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.