LiteAPI Server

MCP server for LiteAPI using Next.js and mcp-handler (Streamable HTTP). Deploys to Vercel.

Quick Start

npm install
npm run dev

MCP endpoint: http://localhost:3000/api/mcp

ChatGPT Setup

Add to ChatGPT MCP Server URL:

https://mcp.liteapi.travel/api/mcp?apiKey=YOUR_LITEAPI_KEY

Or set LITEAPI_API_KEY in Vercel environment variables for single-tenant deployment.

---

Features

• 🔄 Dynamic Tool Generation: Automatically generates MCP tools from OpenAPI specs
• 📚 Multiple API Modules: Supports Search, Booking, Vouchers, Analytics, Static, Loyalty, and Supply Customization APIs
• 🔐 API Key Authentication: Secure API key management via environment variables
• 🎯 Type-Safe: Uses Zod for schema validation and type safety
• 🚀 Easy Integration: Works with Claude Desktop and other MCP-compatible clients

Prerequisites

• Node.js 18+
• npm or yarn
• LiteAPI API Key

Installation

1. Clone the repository and install dependencies:

npm install

2. Build the TypeScript code:

npm run build

3. Set your LiteAPI API key as an environment variable:

export LITEAPI_API_KEY=your_api_key_here

Usage

Running the Server

The server runs on stdio (standard input/output) for MCP communication:

npm start

Or for development with auto-reload:

npm run dev

Testing

Quick Test

Test that the server works correctly:

export LITEAPI_API_KEY=your_api_key_here
npm test

This will connect to the server and list all available tools.

Option 1: Using MCP Inspector (Recommended for Development)

MCP Inspector is a browser-based tool for testing and debugging MCP servers. It's perfect for inspecting tools, testing calls, and debugging without needing Claude Desktop.

1. Install and run MCP Inspector:

# Make sure your API key is set
export LITEAPI_API_KEY=your_api_key_here

# Run the inspector (it will automatically start your server)
npm run inspect
# Or directly:
npx @modelcontextprotocol/inspector node dist/index.js

2. The inspector will:

   • Open a browser window at http://localhost:6274
   • Start a proxy server on port 6277
   • Display all available tools with their schemas
   • Allow you to test tool calls interactively
   • Show real-time notifications and responses

3. In the Inspector UI, you can:

   • Tools Tab: See all available tools, their descriptions, and input schemas
   • Test Tools: Click on any tool to test it with sample parameters
   • View Responses: See formatted JSON responses from API calls
   • Debug: Check for errors and validation issues

Note: Make sure Node.js 22.7.5+ is installed for MCP Inspector (check with node --version).

Option 2: Testing with a Simple Client Script

Create a test script to verify the server works:

# Create test-client.js
cat > test-client.js << 'EOF'
import { Client } from '@modelcontextprotocol/sdk/client/index.js';
import { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js';

async function test() {
  const transport = new StdioClientTransport({
    command: 'node',
    args: ['dist/index.js'],
    env: { LITEAPI_API_KEY: process.env.LITEAPI_API_KEY }
  });

  const client = new Client({
    name: 'test-client',
    version: '1.0.0'
  }, {
    capabilities: {}
  });

  await client.connect(transport);

  // List all available tools
  const tools = await client.listTools();
  console.log(`Found ${tools.tools.length} tools:`);
  tools.tools.forEach(tool => {
    console.log(`  - ${tool.name}: ${tool.description}`);
  });

  await client.close();
}

test().catch(console.error);
EOF

# Run the test
export LITEAPI_API_KEY=your_api_key_here
node test-client.js

Option 3: Connecting to Claude Desktop

1. Get the absolute path to your project:

# macOS/Linux
pwd
# Output: /Users/nicholas/Documents/nuitee/liteapi/mcp-server

# Windows (PowerShell)
(Get-Location).Path

2. Open Claude Desktop configuration file:

   • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
   • Windows: %APPDATA%\Claude\claude_desktop_config.json
   • Linux: ~/.config/Claude/claude_desktop_config.json

   If the file doesn't exist, create it with an empty JSON object: {}

3. Add the server configuration:

{
  "mcpServers": {
    "liteapi": {
      "command": "node",
      "args": ["/absolute/path/to/mcp-server/run-mcp-server.mjs"],
      "env": {
        "LITEAPI_API_KEY": "your_api_key_here"
      }
    }
  }
}

Important:

• Use run-mcp-server.mjs instead of dist/index.js to ensure ES modules work correctly
• Replace /absolute/path/to/mcp-server with the actual absolute path to this project
• Replace your_api_key_here with your actual LiteAPI API key
• On Windows, use forward slashes / or escaped backslashes \\ in the path

Example for macOS:

{
  "mcpServers": {
    "liteapi": {
      "command": "node",
      "args": ["/Users/nicholas/Documents/nuitee/liteapi/mcp-server/run-mcp-server.mjs"],
      "env": {
        "LITEAPI_API_KEY": "sand_c0155ab8-c683-4f26-8f94-b5e92c5797b9"
      }
    }
  }
}

Note: The .mjs wrapper script ensures Node.js correctly recognizes ES modules when running from Claude Desktop. If you prefer to use dist/index.js directly, make sure Claude Desktop runs it from the project root directory.

4. Restart Claude Desktop completely (quit and reopen)

5. Verify connection:

   • Open Claude Desktop
   • Start a new conversation
   • Look for MCP tools indicator (usually shows available tools)
   • Try asking: "What LiteAPI tools are available?" or "Search for hotels in Paris"

Troubleshooting Connection Issues

If Claude Desktop doesn't recognize the server:

1. Check the path is correct:

   # Test that the file exists and is executable
   ls -la /absolute/path/to/mcp-server/dist/index.js
   node /absolute/path/to/mcp-server/dist/index.js
   

2. Check Claude Desktop logs:

   • macOS: ~/Library/Logs/Claude/claude_desktop.log
   • Windows: %APPDATA%\Claude\logs\
   • Look for errors related to MCP server startup

3. Verify JSON syntax:

   # Validate JSON syntax
   cat ~/Library/Application\ Support/Claude/claude_desktop_config.json | python3 -m json.tool
   

4. Test server manually:

   export LITEAPI_API_KEY=your_api_key_here
   node dist/index.js
   # Should output: "Loaded X endpoints from Y OpenAPI specs"
   # Should output: "LiteAPI MCP Server running on stdio"
   

5. Check Node.js version:

   node --version
   # Should be 18.0.0 or higher
   

Available Tools

The server automatically generates tools from all OpenAPI specs in the openapi-schemas/ directory. Each endpoint becomes a callable MCP tool with:

• Operation ID as the tool name
• Description from the OpenAPI spec
• Parameters automatically extracted and validated

Example tools include:

• post_hotels_rates - Search for hotel rates
• get_prebooks_{prebookId} - Retrieve prebook details
• post_bookings - Create a booking
• And many more...

Project Structure

.
├── src/
│   ├── index.ts              # Entry point
│   ├── server.ts              # Main MCP server implementation
│   └── utils/
│       ├── openapi-parser.ts  # OpenAPI spec parsing
│       ├── schema-converter.ts # OpenAPI to Zod conversion
│       └── api-client.ts      # HTTP client for API calls
├── openapi-schemas/           # OpenAPI specification files
├── dist/                      # Compiled JavaScript (generated)
├── package.json
├── tsconfig.json
└── README.md

Development

Building

npm run build

Watching for Changes

npm run watch

Adding New OpenAPI Specs

1. Add your OpenAPI spec JSON file to openapi-schemas/
2. Update the specFiles array in src/utils/openapi-parser.ts if needed
3. Rebuild and restart the server

Environment Variables

• LITEAPI_API_KEY (required): Your LiteAPI API key for authentication

API Modules

The server supports the following LiteAPI modules:

• Search (search.json) - Hotel search and rate retrieval
• Booking (booking.json) - Booking management and prebook operations
• Vouchers (voucher.json) - Voucher creation and management
• Analytics (analytics.json) - Analytics and reporting
• Static (static.json) - Static data endpoints
• Loyalty (loyalty.json) - Loyalty program operations
• Supply Customization (supplyCustomization.json) - Supply customization

Error Handling

The server includes comprehensive error handling:

• Missing API keys are caught at startup
• Invalid tool calls return descriptive error messages
• API request failures are properly formatted and returned

License

MIT

Support

For issues related to:

• MCP Server: Open an issue in this repository
• LiteAPI: Contact LiteAPI support