Install Duffel MCP Server

Pick your client, copy the command, done.

Manual setup required. The maintainer's config contains paths only you know - edit the placeholders below before adding it to Claude Code.

Run this once before adding it to Claude Code.

npm install
npm run build

claude mcp add -e "DUFFEL_API_TOKEN=${DUFFEL_API_TOKEN}" duffel-mcp -- node /absolute/path/to/duffel-mcp/dist/index.js

Replace any placeholder paths in the command with the real path on your machine.

Required:DUFFEL_API_TOKEN

Environment Variables

Set these before running Duffel MCP Server.

VariableDescriptionRequired

DUFFEL_API_TOKENAPI token from Duffel dashboardYes

Once configured, Duffel MCP Server gives your AI agent access to:

search_flightsSearch one-way or round-trip flights by IATA code, date, cabin class

origindestinationdeparture_datereturn_datecabin_classpassengers

get_offer_detailsGet full details on a specific offer (baggage, fare conditions, etc.)

offer_id

list_airportsLook up IATA codes by city/airport name

query

After setup, try these prompts with your AI agent:

→Search for flights from RDU to SFO on April 15th for 2 passengers in economy

→Find round-trip flights from Raleigh to London, departing May 10 returning May 20, business class

→What's the cheapest flight from JFK to LAX next Friday?

→Look up the airport code for Raleigh Durham

→Get full details and baggage policy for offer [offer_id]

Prerequisites & system requirements

An MCP-compatible client (Claude Code, Cursor, Windsurf, Claude Desktop, or Codex)
Node.js 18+ with npm/npx installed
DUFFEL_API_TOKEN — API token from Duffel dashboard

Alternative installation methods

claude mcp add duffel node /path/to/dist/index.js

Save the docs, env vars, and workflow around Duffel MCP Server in Conare so Claude Code, Codex, and Cursor remember it next time.