Execute TypeScript code with direct tool access through MCP.

An advanced MCP server that brings UTCP Code Mode to the MCP ecosystem, allowing you to execute TypeScript code with all registered tools available as native TypeScript functions.

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

{
  "mcpServers": {
    "utcp-codemode": {
      "command": "npx",
      "args": ["@utcp/code-mode-mcp"],
      "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 tools available in TypeScript code
• Enable TypeScript code execution with hierarchical tool access (e.g., manual.tool())

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"
    }
}

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

• register_manual - Register new UTCP manuals/APIs
• deregister_manual - Remove registered manuals
• search_tools - Find tools by description with TypeScript interfaces
• list_tools - List all registered tool names
• get_required_keys_for_tool - Get required environment variables
• tool_info - Get complete tool information with TypeScript interface
• call_tool_chain - Execute TypeScript code with direct tool access

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.

The main feature of this bridge is the ability to execute TypeScript code with direct access to all registered tools:

// Example using call_tool_chain
const result = await call_tool_chain(`
  // Get user data from an API
  const user = await user_service.getUserProfile({ userId: "123" });
  console.log('User data:', user);
  
  // Process the data with another tool
  const processed = await data_processor.analyzeUserBehavior({
    userData: user,
    timeframe: "30days"
  });
  
  // Generate a report
  const report = await reporting.generateInsights({
    analysis: processed,
    format: "summary"
  });
  
  return {
    userId: user.id,
    totalActions: processed.actionCount,
    topInsight: report.insights[0]
  };
`);

Key Benefits:

• Hierarchical Access: Use manual.tool() syntax to avoid naming conflicts
• Type Safety: Get TypeScript interfaces for all tools via search_tools or tool_info
• Code Execution: Chain multiple tool calls in a single code block
• Error Handling: Proper error handling with timeout support

• ✅ 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/

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

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