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Version: 0.0.2

Slack MCP Server Architecture

This section provides comprehensive documentation of the Slack MCP Server architecture, covering all major components and their interactions.

Architecture Components​

The Slack MCP Server is built with a modular architecture that supports multiple deployment modes and integration patterns:

🏗️ Project Structure​

  • Overall source code organization
  • Design patterns and principles
  • Directory structure and key components
  • Development workflow and conventions

🔧 MCP Server Architecture​

  • Model Context Protocol implementation
  • Transport mechanisms (stdio, SSE, HTTP)
  • Tool registration and execution
  • Client communication patterns

🌐 Webhook Server Architecture​

  • FastAPI-based webhook server
  • Slack event processing
  • Queue integration and event publishing
  • Security and authentication

⚡ Integrated Server Architecture​

  • Combined MCP and webhook server deployment
  • Unified FastAPI application
  • Transport configuration options
  • Production deployment patterns

System Overview​

Key Features​

  • Multiple Transport Options: stdio, Server-Sent Events (SSE), and HTTP streaming
  • Flexible Deployment: Standalone MCP server, standalone webhook server, or integrated mode
  • Event Processing: Asynchronous Slack event handling with queue integration
  • Security: Request signature verification and token management
  • Scalability: Horizontal scaling support for webhook processing

Design Principles​

  1. Modularity: Clear separation between MCP and webhook functionality
  2. Extensibility: Easy to add new MCP tools and event handlers
  3. Security: Secure token handling and request verification
  4. Performance: Asynchronous processing and efficient resource usage
  5. Reliability: Robust error handling and recovery mechanisms

Next Steps​

Explore the detailed architecture documentation for each component to understand the implementation details, configuration options, and best practices for deployment and development.