General Tools

airfarebrain.com

Provides researched airline extra-fee data and calculates the true cost of flights without live fares or booking.

1 endpoint4 known toolsFirst detected October 20, 2026Last detected October 20, 2026

ENDPOINT 1

https://airfarebrain.com/mcp

No auth detected

MCP server metadata

Name: airfare-brain
Version: 1.0.0

Capabilities

tools

Server instructions

Airfare Brain gives the TRUE cost of a flight's extras on low-cost and leisure airlines in Europe (bags, seats, priority, airport check-in, changes) from each airline's own published fee pages, every figure dated and sourced. It has no live fares of its own. For a full answer: FIRST get the fare from a flight-search tool you have (e.g. Kiwi.com, Skyscanner, Kayak or Expedia) or from the person, THEN call true_cost with that airline and the total fare for the party; it adds the bags, seats and fees the fare leaves out. Comparing flights? Call true_cost once per option - the cheapest fare is often not the cheapest trip once bags are added. Figures are ranges the airline publishes, not quotes; give the person the page link to check, and book on the flight site. Sister tool for the car at the destination: Car Rental Brain, https://app.carrentalbrain.com/mcp

Known tools 4

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 for car hire.

Inferred read-only

list_airlines

List every airline with a fee table: name, IATA code, the date its fees were checked, and its page.

Inferred read-only

airline_fees

One airline's published extra fees (bags, seats, priority, check-in, changes, payment), each with the price range, when bought (at booking / later / airport), how it is charged, its source URL and the date checked.

Potential side effects

true_cost

The true cost of a flight on one airline.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.airfare-brain]
url = "https://airfarebrain.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "airfare-brain": {
      "type": "http",
      "url": "https://airfarebrain.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: airfare-brain
Remote MCP URL: https://airfarebrain.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "airfare-brain": {
      "url": "https://airfarebrain.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "airfare-brain": {
      "type": "http",
      "url": "https://airfarebrain.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "airfare-brain",
  "transport": "streamable-http",
  "url": "https://airfarebrain.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.