Create Google Calendar Events from Natural Language Chat using GPT

This n8n workflow revolutionizes scheduling by allowing users to create Google Calendar events through natural language chat inputs. Triggered by a 'When chat message received' node, it processes messages like 'Book dentist next Wed 10am' or 'Schedule Zoom call with Jane Friday 3–4pm'. Powered by a Langchain AI Agent using GPT-4o-mini, it intelligently parses the text, resolves relative dates and times into ISO timestamps, generates event titles if missing, and fills all required fields. If details are vague, it asks a single clarifying question.

Once structured, the workflow seamlessly integrates with Google Calendar via OAuth2 credentials to create the event in your connected account. An optional 'Respond to Chat' node (disabled by default) can send confirmations like '📅 Booked: Lunch with John on Aug 30 at 12:30 PM'. This setup eliminates manual form-filling, making scheduling as easy as texting a friend.

Ideal for busy professionals, teams, or personal use, it saves hours on calendar management. Use cases include quick meeting bookings during chats, automated reminders from voice-to-text, or embedding into customer support bots for appointment setting. Benefits include error-reduced parsing via AI, flexibility with vague inputs, and scalability across chat platforms.

Requirements: Google Calendar OAuth2 credentials and OpenAI API key. Highly customizable—swap LLMs or enable responses for enhanced UX.