HAL

[](https://lobehub.com/mcp/deanward-hal)

HAL is a Model Context Protocol (MCP) server that provides HTTP API capabilities to Large Language Models. It allows LLMs to make HTTP requests and interact with web APIs through a secure, controlled interface. HAL can also automatically generate tools from OpenAPI/Swagger specifications for seamless API integration.

[Complete Documentation →](https://deanward.github.io/HAL/documentation/)

Visit our comprehensive documentation site for detailed guides, examples, and API reference.

• HTTP GET/POST/PUT/PATCH/DELETE/OPTIONS/HEAD Requests: Fetch and send data to any HTTP endpoint
• Secure Secret Management: Environment-based secrets with {secrets.key} substitution and automatic redaction
• Swagger/OpenAPI Integration: Automatically generate tools from API specifications
• Built-in Documentation: Self-documenting API reference
• Secure: Runs in isolated environment with controlled access
• Fast: Built with TypeScript and optimized for performance

HAL is designed to work with MCP-compatible clients. Here are some examples:

Add HAL to your Claude Desktop configuration (npx will automatically install and run HAL):

{
  "mcpServers": {
    "hal": {
      "command": "npx",
      "args": ["hal-mcp"]
    }
  }
}

To enable automatic tool generation from an OpenAPI specification and use secrets:

{
  "mcpServers": {
    "hal": {
      "command": "npx",
      "args": ["hal-mcp"],
      "env": {
        "HAL_SWAGGER_FILE": "/path/to/your/openapi.json",
        "HAL_API_BASE_URL": "https://api.example.com",
        "HAL_SECRET_API_KEY": "your-secret-api-key",
        "HAL_SECRET_USERNAME": "your-username",
        "HAL_SECRET_PASSWORD": "your-password"
      }
    }
  }
}