How to Use the Duffel Flights MCP in Claude

Book flights and manage reservations directly inside Claude Desktop without leaving your chat window.

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Connect Duffel Flights MCP to Claude Desktop

Create your Vinkius account to connect Duffel Flights to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Duffel Flights with Claude Desktop

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Find flights instantly inside Claude Desktop

The `create_flight_offer_request` tool initiates real-time searches across hundreds of airlines directly within your chat window. Your agent takes your travel dates, origin, and destination to fetch live pricing and routing options. It then calls `list_flight_offers` to pull the exact tickets available for your trip. Claude Desktop displays these options in clean tables or lists. You don't have to copy-paste flight numbers or open browser tabs to compare prices. Just tell your agent which option you want, and it prepares the next step of your booking.

Complete bookings using this MCP Server

The `create_flight_order` tool handles the reservation process by sending passenger names, passport details, and contact info directly to the airline. This creates a held booking, securing your seat and price before you finalize payment. If you need to review existing trips, the agent uses `list_flight_orders` to show your active itineraries. This keeps your entire travel history accessible right in your local chat environment.

Pay for held orders and look up airport codes

The `pay_for_flight_order` tool executes the final payment step for any held booking to issue your actual e-ticket. Your agent uses this tool to process payments securely through Duffel's API without exposing raw card details in plain text. To make sure your search queries are accurate, the MCP Server uses `list_airports`, `list_airlines`, and `list_aircraft` to resolve city names and airline codes behind the scenes. This metadata lookup prevents routing errors before you commit to a purchase.

Setup guide

Set up Duffel Flights MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Duffel Flights MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Duffel Flights MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under duffel-flights-mcp.

json

{
  "mcpServers": {
    "duffel-flights-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Duffel. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Duffel Flights MCP in Claude Desktop

Ask your agent to find flights between two cities for specific dates. The agent automatically triggers `create_flight_offer_request` and retrieves the active flight options using `list_flight_offers` to show you prices in real time.

Yes, you can complete payments directly in your chat. Once you select an offer, the agent holds the seat and then uses `pay_for_flight_order` to finalize the payment and issue your ticket.

You don't need to know the three-letter airport codes when chatting. The agent uses `list_airports` and `list_airlines` to match city names and airline names to their official codes automatically.

Yes, you can view them instantly. This MCP integration lets the agent call `list_flight_orders` to fetch a list of your current and past reservations directly from your account.

Your passenger details and payment credentials bypass local storage entirely. This MCP Server transmits sensitive passenger information and payment tokens directly to Duffel's secure API endpoints using isolated runtime environments, ensuring your private travel details are never cached or logged.

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