Kiwi.com    Navifare     Peek.com    LastMinute
  (flights)   (prices)   (experiences)  (flights)
      \          |           |          /
       \         |           |         /
        +--------+-----------+--------+
        |                             |
        |    MoltTravel MCP Server    |
        |                             |
        |  Airports  Airlines  Visas  |
        |  Countries  FCDO  Gemini AI |
        |                             |
        +-------------|---------------+
                      |
               MCP over HTTP
                      |
              Any MCP Client
        (Claude, Cursor, your app)

git clone https://github.com/navifare/moltravel-mcp.git
cd moltravel-mcp
python -m venv venv && source venv/bin/activate
pip install -r requirements.txt
python molttravel_server.py

{
  "mcpServers": {
    "molttravel": {
      "url": "http://localhost:8000/mcp"
    }
  }
}

{
  "mcpServers": {
    "molttravel": {
      "url": "http://localhost:8000/mcp"
    }
  }
}

from mcp import ClientSession
from mcp.client.streamable_http import streamablehttp_client

async with streamablehttp_client("http://localhost:8000/mcp") as (r, w, _):
    async with ClientSession(r, w) as session:
        await session.initialize()
        tools = await session.list_tools()
        result = await session.call_tool("airports_lookup", {"code": "ZRH"})

kiwi       → kiwi_search-flight, kiwi_feedback-to-devs
navifare   → navifare_flight_pricecheck, navifare_format_flight_pricecheck_request
peek       → peek_search_experiences, peek_experience_details, ...
lastminute → (discovered at runtime)

# Client sees the real schema
parameters = input_schema          # original from upstream

# Server doesn't re-validate types — just passes through
fields[prop_name] = (Any, Field(default=None))

FROM python:3.12-slim
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY . .
EXPOSE 8000
CMD ["python", "molttravel_server.py"]

docker build -t molttravel .
docker run -p 8000:8000 molttravel

moltravel-mcp/
├── molttravel_server.py        # Server core — proxy logic, native tools, routing
├── requirements.txt            # mcp[cli], httpx
├── test_search.py              # Integration test client
└── providers/
    ├── __init__.py             # MCP_PROVIDERS registry + exports
    ├── mcp_client.py           # Generic HTTP client for upstream MCP servers
    ├── data_loader.py          # CSV downloader + haversine distance
    ├── airports.py             # 45K airports from OurAirports
    ├── airlines.py             # 7K airlines from OpenFlights
    ├── visas.py                # Visa requirements from Passport Index
    ├── restcountries.py        # REST Countries API
    ├── fcdo.py                 # UK FCDO travel advisories
    └── gemini.py               # Gemini Flash tool router

MCP_PROVIDERS = {
    "kiwi": McpClient("https://mcp.kiwi.com/mcp"),
    "navifare": McpClient("https://mcp.navifare.com/mcp"),
    "peek": McpClient("https://mcp.peek.com/mcp"),
    "your_provider": McpClient("https://mcp.example.com/mcp"),  # new
}

@server.tool(name="my_tool")
async def my_tool(query: str) -> str:
    """Description shown to MCP clients."""
    return "result"