How do I get a Duffel Access Token?

Sign up for a developer account at the [**Duffel Dashboard**](https://app.duffel.com/). You can generate both 'test' tokens for development and 'live' tokens for real bookings.

Can I make real bookings with this agent?

Yes, if you provide a 'live' access token, the agent can perform real flight bookings. We recommend using a 'test' token first to understand the search and booking flow.

Duffel Flights MCP Server for LlamaIndex 8 tools — connect in under 2 minutes

Name: Duffel Flights
Availability: InStock
Author: Vinkius

docs.llamaindex.ai/en/stable/module_guides/tools/mcp

Built by Vinkius GDPR 8 Tools Framework

LlamaIndex specializes in data-aware AI agents that connect LLMs to structured and unstructured sources. Add Duffel Flights as an MCP tool provider through Vinkius and your agents can query, analyze, and act on live data alongside your existing indexes.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from llama_index.tools.mcp import BasicMCPClient, McpToolSpec
from llama_index.core.agent.workflow import FunctionAgent
from llama_index.llms.openai import OpenAI

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    mcp_client = BasicMCPClient("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
    mcp_tool_spec = McpToolSpec(client=mcp_client)
    tools = await mcp_tool_spec.to_tool_list_async()

    agent = FunctionAgent(
        tools=tools,
        llm=OpenAI(model="gpt-4o"),
        system_prompt=(
            "You are an assistant with access to Duffel Flights. "
            "You have 8 tools available."
        ),
    )

    response = await agent.run(
        "What tools are available in Duffel Flights?"
    )
    print(response)

asyncio.run(main())

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About Duffel Flights MCP Server

Connect your AI agent to Duffel, the modern infrastructure for travel. This integration allows you to search for real-time flight offers, manage bookings (orders), and access a comprehensive directory of airlines, airports, and aircraft through natural conversation.

LlamaIndex agents combine Duffel Flights tool responses with indexed documents for comprehensive, grounded answers. Connect 8 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.

What you can do

Flight Search — Create offer requests to find the best flights based on origin, destination, dates, and cabin class
Booking Management — Create flight orders (instant or hold) and retrieve detailed reservation information
Payment Processing — Pay for flight orders that were previously held directly via the agent
Travel Directory — List and inspect aircraft models, airlines, and airports worldwide with their respective IATA codes
Order Oversight — List all flight bookings associated with your account to track your travel history

The Duffel Flights MCP Server exposes 8 tools through the Vinkius. Connect it to LlamaIndex in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Duffel Flights to LlamaIndex via MCP

Follow these steps to integrate the Duffel Flights MCP Server with LlamaIndex.

Install dependencies

Run pip install llama-index-tools-mcp llama-index-llms-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 8 tools from Duffel Flights

Why Use LlamaIndex with the Duffel Flights MCP Server

LlamaIndex provides unique advantages when paired with Duffel Flights through the Model Context Protocol.

Data-first architecture: LlamaIndex agents combine Duffel Flights tool responses with indexed documents for comprehensive, grounded answers

Query pipeline framework lets you chain Duffel Flights tool calls with transformations, filters, and re-rankers in a typed pipeline

Multi-source reasoning: agents can query Duffel Flights, a vector store, and a SQL database in a single turn and synthesize results

Observability integrations show exactly what Duffel Flights tools were called, what data was returned, and how it influenced the final answer

Duffel Flights + LlamaIndex Use Cases

Practical scenarios where LlamaIndex combined with the Duffel Flights MCP Server delivers measurable value.

Hybrid search: combine Duffel Flights real-time data with embedded document indexes for answers that are both current and comprehensive

Data enrichment: query Duffel Flights to augment indexed data with live information before generating user-facing responses

Knowledge base agents: build agents that maintain and update knowledge bases by periodically querying Duffel Flights for fresh data

Analytical workflows: chain Duffel Flights queries with LlamaIndex's data connectors to build multi-source analytical reports

Duffel Flights MCP Tools for LlamaIndex (8)

These 8 tools become available when you connect Duffel Flights to LlamaIndex via MCP:

create_flight_offer_request

Provide passengers as a JSON array string. Search for flight offers by specifying origin, destination, and passengers

create_flight_order

Provide full passenger details as a JSON string. Book a flight by selecting an offer and providing passenger details

list_aircraft

Retrieve a list of aircraft used by airlines

list_airlines

Retrieve a list of airlines

list_airports

Retrieve a list of airports

list_flight_offers

Retrieve all available flight offers for a specific offer request

list_flight_orders

Retrieve a list of all flight bookings (orders)

pay_for_flight_order

Process payment for a flight order that was previously put on hold

Example Prompts for Duffel Flights in LlamaIndex

Ready-to-use prompts you can give your LlamaIndex agent to start working with Duffel Flights immediately.

"Search for a flight from London (LHR) to New York (JFK) on 2024-12-01."

"List all airports in Brazil."

Troubleshooting Duffel Flights MCP Server with LlamaIndex

Common issues when connecting Duffel Flights to LlamaIndex through the Vinkius, and how to resolve them.

BasicMCPClient not found

Install: pip install llama-index-tools-mcp

Duffel Flights + LlamaIndex FAQ

Common questions about integrating Duffel Flights MCP Server with LlamaIndex.

How does LlamaIndex connect to MCP servers?

Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.

Can I combine MCP tools with vector stores?

Yes. LlamaIndex agents can query Duffel Flights tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.