True cost of a flight's extras (bags, seats, fees) on 11 European airlines, dated and sourced. Connect the official Airfare Brain MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http airfare-brain https://airfarebrain.com/mcpRun in your terminal, then restart Claude Code.
Airfare Brain · https://airfarebrain.com/mcp
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “get_capabilities”: What Airfare Brain covers: airlines, how fees are researched and dated, what it does NOT do (no live fares, no booking), and the sister tool.”
“Use “list_airlines”: List every airline with a fee table: name, IATA code, the date its fees were checked, and its page.”
“Use “airline_fees”: One airline's published extra fees (bags, seats, priority, check-in, changes, payment), each with the price range, when bought (at booking /.”
“Use “true_cost”: The true cost of a flight on one airline. Pass `fare` (the total for the whole party, from a flight-search tool or the person) to get fare +.”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Airfare Brain holds up.
Operated by Airfare Brain (airfarebrain.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If Airfare Brain adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose Airfare Brain in the gate directory. No sign-in needed.
Airfare Brain's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
get_capabilities — What Airfare Brain covers: airlines, how fees are researched and dated, what it does NOT do (no live fares, no booking), and the sister tool
list_airlines — List every airline with a fee table: name, IATA code, the date its fees were checked, and its page.
airline_fees — One airline's published extra fees (bags, seats, priority, check-in, changes, payment), each with the price range, when bought (at booking /
true_cost — The true cost of a flight on one airline. Pass `fare` (the total for the whole party, from a flight-search tool or the person) to get fare +
https://airfarebrain.com/mcpYes — Airfare Brain operates its own remote MCP server at airfarebrain.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick Airfare Brain in the directory. No account or sign-in is needed. From then on, Airfare Brain's tools are available in every client you've connected to gate.
No. Airfare Brain runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Yes — you can get started with gate for free and connect Airfare Brain in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up Airfare Brain in: Claude · Claude Code · ChatGPT · Cursor · VS Code