Gmail Customer Support Auto-Responder with Ollama LLM and Pinecone RAG

# Gmail Customer Support Auto-Responder with Ollama LLM and Pinecone RAG **Built by Setidure Technologies** Automate intelligent, friendly replies to customer queries using AI, vector search, and Gmail - all without human effort. --- ## Overview This is a ready-to-deploy smart customer support automation template for businesses that want to reply to emails instantly and accurately with the warmth of a human agent. It uses **Gmail**, **LangChain agents**, **Ollama-hosted LLMs**, and **Pinecone vector search** to craft contextual, brand-aligned replies at scale. > **Note:** This template uses community nodes and requires a **self-hosted n8n instance**. --- ## What the Workflow Does ### 1. Triggers on Incoming Emails - Uses Gmail trigger node to listen for new messages - Activates every minute to ensure fast responses ### 2. Classifies Email Intent - A LangChain Text Classifier detects whether the email is a Customer Support query - Non-relevant emails are skipped ### 3. Generates AI Response - An AI Agent powered by Ollama generates the email reply - Follows a predefined tone: Mr. Aashit Sharma from Setidure Technologies - Written in a warm, human tone with natural phrasing ### 4. Retrieves FAQ-Based Knowledge - Connects to Pinecone vector database for real-time FAQ retrieval - Enhances responses with specific, accurate product or policy information ### 5. Labels Email in Gmail - Automatically tags emails with labels like `Handled` or `Auto-Replied` for easy tracking ### 6. Sends Email Reply - Sends the generated response back to the customer - Includes personal sign-off and clean formatting --- ## Tech Stack Used - Gmail Trigger & Send Nodes - LangChain AI Agent & Classifier - Ollama LLMs (e.g., phi4, llama3) - Pinecone Vector Store - Custom Prompts for Brand Persona - Local Embeddings using Ollama --- ## Key Features - Fully automated - no human action needed - Local LLMs ensure data privacy - Real-time answers powered by vector search - Brand-personality aligned tone - Organized inbox with Gmail labels --- ## Best For - Startups scaling support with limited staff - SaaS companies or e-commerce businesses - Privacy-conscious enterprises using local LLMs - Teams building branded auto-communication workflows --- ## Customization Tips - Modify AI prompt to reflect your brand's voice and tone - Expand classifier for more email categories - Replace Gmail output with Slack, Notion, or your CRM - Update Pinecone FAQ index to match evolving support content ---