AI Chatbot with Web Search & Wikipedia Tools

This n8n workflow powers a dynamic AI chatbot capable of natural conversations enhanced by real-time web searches and Wikipedia lookups. Triggered by chat messages via a dedicated chat trigger node, it leverages OpenAI's GPT-4o model within a conversational agent framework. The agent intelligently decides when to use tools like SerpAPI for current web data or Wikipedia for factual knowledge, ensuring accurate and enriched responses.

A Window Buffer Memory node maintains the last 20 interactions, providing seamless context continuity for ongoing dialogues. This setup is ideal for customer support, research assistants, or procurement bots in commerce scenarios where up-to-date information is crucial. Benefits include reduced manual research time, improved response quality, and scalable deployment on n8n version 1.50.0+.

Use cases span e-commerce procurement (e.g., supplier price checks via web search), customer service (answering queries with verified sources), and knowledge bases (quick wiki facts in chats). It's highly customizable, with sticky notes guiding node purposes for easy onboarding and modification.