Create a Knowledge Base Chatbot with OpenAI and Notion for Website Embedding

Description

This workflow creates an AI chatbot that uses your Notion database as a knowledge base and allows for website embedding (e.g., as a customer support chatbot). The AI agent can automatically query your Notion pages and databases to provide accurate, contextual responses based on your stored content.

Who's it for

This template is perfect for:
Support teams who maintain their knowledge base in Notion
Content creators and teams managing documentation in Notion databases
Businesses looking to make their Notion workspace conversationally accessible
Anyone who wants to turn their Notion content into an interactive AI assistant

How it works

The workflow combines OpenAI's language model with Notion's database capabilities to create a smart chatbot. When users ask questions, the AI agent automatically determines which Notion pages or database entries are relevant and uses that content to generate helpful responses. The system maintains conversation history for natural, contextual interactions.

How to set up

Add your credentials:
Configure your Notion API integration in the Set & Get Notion Database node
Set up your OpenAI API credentials in the OpenAI Chat Model node

Configure your Notion connection:
Click the Set & Get Notion Database node
Select your Notion database or page containing your knowledge base content
The AI will automatically determine relevant pages - no need to specify individual page IDs

Customize the AI model:
Open the OpenAI Chat Model node
Choose your preferred model (GPT-4, GPT-3.5-turbo, etc.)
Adjust token limits if needed

Test the chatbot:
Click the Chat button to start a conversation
Ask questions related to your Notion content

Optional - Make it public:
Enable public access in the Chat Trigger node
Embed the provided code into your website

Requirements

n8n instance (cloud or self-hosted)
Notion workspace with databases or pages you want to query
OpenAI API key with available credits
Notion API integration with proper permissions

How to customize the workflow

Change the AI Provider:
You can replace the OpenAI Chat Model with other providers like Anthropic Claude, Google Gemini, or local models by swapping the language model node.

Adjust Context Window:
Modify the "Remember Chat History" node to increase or decrease how many previous messages the AI remembers (default is 10 interactions).

Update System Instructions:
Edit the Smart AI Agent's system message to change how the assistant behaves or add specific instructions for your use case.

Connect Multiple Databases:
Add additional Notion Database nodes to give the AI access to multiple databases or pages within your workspace.

Add More Tools:
Extend the AI agent with additional tools like web search, email sending, or integration with other services.

Workflow Structure

Chat Trigger → Smart AI Agent ← OpenAI Chat Model
↓
Set & Get Notion Database
↑
Remember Chat History

The Smart AI Agent orchestrates the conversation, deciding when to query Notion and how to use the retrieved content in responses. The memory buffer ensures natural conversation flow by maintaining context across interactions.