Core MCP Server

⚠️ DEPRECATION NOTICE: This server is deprecated and will no longer receive updates. Modern MCP clients (Kiro, Cursor, VS Code) support multi-server configurations natively, making the proxy/orchestration pattern unnecessary. Please configure the individual MCP servers you need directly. See the migration guide for a role-to-server mapping.

MCP server that provides a starting point for using MCP servers for AWS through a dynamic proxy server strategy based on role-based environment variables.

Features

Planning and orchestration

• Provides tool for prompt understanding and translation to AWS services

Dynamic Proxy Server Strategy

The Core MCP Server implements a proxy server strategy that dynamically imports and proxies other MCP servers based on role-based environment variables. This allows you to create tailored server configurations for specific use cases or roles without having to manually configure each server.

Role-Based Server Configuration

You can enable specific roles by setting environment variables. Each role corresponds to a logical grouping of MCP servers that are commonly used together for specific use cases.

Important: Environment variable names can be either lowercase with hyphens or uppercase with underscores (e.g., aws-foundation or AWS_FOUNDATION). Some systems may not support the hyphenated format, so choose the format that works best for your environment.

Benefits of the Proxy Server Strategy

• Simplified Configuration: Enable multiple servers with a single environment variable
• Reduced Duplication: Servers are imported only once, even if needed by multiple roles
• Tailored Experience: Create custom server configurations for specific use cases
• Flexible Deployment: Easily switch between different server configurations

Usage Notes

• If no roles are enabled, the Core MCP Server will still provide its basic functionality (prompt_understanding) but won't import any additional servers
• You can enable multiple roles simultaneously to create a comprehensive server configuration
• The proxy strategy ensures that each server is imported only once, even if it's needed by multiple roles

Note: Not all MCP servers for AWS are represented in these logical groupings. For specific use cases, you may need to install additional MCP servers directly. See the main README for a complete list of available MCP servers.

Prerequisites

• Python 3.12 or higher
• uv - Fast Python package installer and resolver
• AWS credentials configured with Bedrock access
• Node.js (for UVX installation support)

Installation

Kiro	Cursor	VS Code

Configure the MCP server in your MCP client configuration (e.g., for Kiro, edit ~/.kiro/settings/mcp.json):

{
  "mcpServers": {
    "awslabs-core-mcp-server": {
      "command": "uvx",
      "args": [
        "awslabs.core-mcp-server@latest"
      ],
      "env": {
        "FASTMCP_LOG_LEVEL": "ERROR",
        "aws-foundation": "true",
        "solutions-architect": "true"
        // Add other roles as needed
      },
      "autoApprove": [],
      "disabled": false
    }
  }
}

To enable specific role-based server configurations, add the corresponding environment variables to the env section of your MCP client configuration. For example, the configuration above enables the aws-foundation and solutions-architect roles, which will import the corresponding MCP servers.

Windows Installation

For Windows users, the MCP server configuration format is slightly different:

{
  "mcpServers": {
    "awslabs-core-mcp-server": {
      "disabled": false,
      "timeout": 60,
      "type": "stdio",
      "command": "uv",
      "args": [
        "tool",
        "run",
        "--from",
        "awslabs.core-mcp-server@latest",
        "awslabs.core-mcp-server.exe"
      ],
      "env": {
        "FASTMCP_LOG_LEVEL": "ERROR",
        "AWS_PROFILE": "your-aws-profile",
        "AWS_REGION": "us-east-1",
        "aws-foundation": "true",
        "solutions-architect": "true"
        // Add other roles as needed
      }
    }
  }
}

or docker after a successful docker build -t awslabs/core-mcp-server .:

  {
    "mcpServers": {
      "awslabs-core-mcp-server": {
        "command": "docker",
        "args": [
          "run",
          "--rm",
          "--interactive",
          "--env",
          "FASTMCP_LOG_LEVEL=ERROR",
          "--env",
          "aws-foundation=true",
          "--env",
          "solutions-architect=true",
          "awslabs/core-mcp-server:latest"
        ],
        "env": {},
        "disabled": false,
        "autoApprove": []
      }
    }
  }

Tools and Resources

The server exposes the following tools through the MCP interface:

• prompt_understanding - Helps to provide guidance and planning support when building AWS Solutions for the given prompt