langgraph-customer-support-automation

buildagentswithhassan/langgraph-customer-support-automation

3.2

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The Model Context Protocol (MCP) server is a Dockerized solution deployed on AWS ECS Fargate, designed to facilitate external tool access for intelligent customer support automation.

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LangGraph Customer Support Automation

Project Overview

An intelligent customer support automation system built with LangGraph that processes incoming emails and provides automated responses using AI agents. The system integrates Gmail API, Google Cloud Pub/Sub, and AWS services to create a complete end-to-end solution.

Business Use Case

Customer support operations often become a significant overhead for businesses, requiring manual intervention for routine inquiries. This project addresses that challenge by:

  • Automating Email Processing: Automatically receives and processes customer emails through Gmail API integration
  • Intelligent Response Generation: Uses AI agents to analyze customer problems and generate appropriate responses
  • Knowledge Base Integration: Leverages company policies and documentation through RAG (Retrieval-Augmented Generation)
  • Order Tracking: Provides real-time order status updates from integrated systems
  • Scalable Architecture: Built on AWS infrastructure for enterprise-scale deployment

Architecture

langgraph-agent-customer-support-automation

Core Components

LangGraph Workflow (langgraph-workflow/)
  • FastAPI Server: Handles Gmail webhook events at /gmail-webhook endpoint
  • Agent Workflow: Multi-step LangGraph workflow for email processing
  • State Management: Tracks email processing state through the workflow
  • Tool Integration: Connects to MCP server for external tool access
MCP Server (mcp-server/)

Dockerized Model Context Protocol server deployed on AWS ECS Fargate providing:

  • Knowledge Base Tool: RAG solution using Pinecone for company policy search
  • Tracking Tool: DynamoDB integration for order tracking information
AWS Infrastructure (aws-cdk-infrastructure/)
  • ECS Fargate: Hosts the containerized MCP server
  • DynamoDB: Stores order tracking data
  • ECR: Container registry for MCP server images
  • VPC: Secure networking setup