UTCP-MCP Bridge

The last MCP server you'll ever need.

A universal, all-in-one MCP server that brings the full power of the Universal Tool Calling Protocol (UTCP) to the MCP ecosystem.

🚀 Quick Start

Add this configuration to your MCP client (Claude Desktop, etc.):

{
  "mcpServers": {
    "utcp": {
      "command": "npx",
      "args": ["@utcp/mcp-bridge"],
      "env": {
        "UTCP_CONFIG_FILE": "/path/to/your/.utcp_config.json"
      }
    }
  }
}

That's it! No installation required. The bridge will automatically:

• Download and run the latest version via npx

• Load your UTCP configuration from the specified path

• Register all your UTCP manuals as MCP tools

• Provide a unified interface to manage your tool ecosystem

Related MCP server: MCP Environment & Installation Manager

🔧 Configuration

Create a .utcp_config.json file to configure your tools and services:

{
    "load_variables_from": [
      {
        "variable_loader_type": "dotenv",
        "env_file_path": ".env"
      }
    ],
    "manual_call_templates": [
      {
          "name": "openlibrary",
          "call_template_type": "http",
          "http_method": "GET", 
          "url": "https://openlibrary.org/static/openapi.json",
          "content_type": "application/json"
      }
    ],
    "post_processing": [
      {
          "tool_post_processor_type": "filter_dict",
          "only_include_keys": ["name", "description"],
          "only_include_tools": ["openlibrary.*"]
      }
    ],
    "tool_repository": {
      "tool_repository_type": "in_memory"
    },
    "tool_search_strategy": {
      "tool_search_strategy_type": "tag_and_description_word_match"
    }
}

🛠️ Available MCP Tools

The bridge exposes these MCP tools for managing your UTCP ecosystem:

• register_manual - Register new UTCP manuals/APIs

• deregister_manual - Remove registered manuals

• call_tool - Execute any registered UTCP tool

• search_tools - Find tools by description

• list_tools - List all registered tool names

• get_required_keys_for_tool - Get required environment variables

• tool_info - Get complete tool information and schema

📁 What is UTCP?

The Universal Tool Calling Protocol (UTCP) allows you to:

• Connect to any API via HTTP, OpenAPI specs, or custom formats

• Use command-line tools with automatic argument parsing

• Process text and files with built-in utilities

• Chain and combine multiple tools seamlessly

With this MCP bridge, all your UTCP tools become available in Claude Desktop and other MCP clients.

🌟 Features

• ✅ Zero installation - Works via npx

• ✅ Universal compatibility - Works with any MCP client

• ✅ Dynamic configuration - Update tools without restarting

• ✅ Environment isolation - Each project can have its own config

• ✅ Comprehensive tool management - Register, search, call, and inspect tools

• ✅ Web interface available - See web_ui_utcp_mcp_bridge/

🐍 Python Version

For Python users, see the standalone Python implementation in python_mcp_bridge/

🌐 Web Interface

For advanced management with a web UI, check out web_ui_utcp_mcp_bridge/