Telegram AI Calendar Assistant for Google Calendar (Voice & Text)

Turn Telegram Voice & Text into a Google Calendar—Automatically

This n8n workflow turns your Telegram bot into an AI calendar assistant that understands voice and text commands in Romanian and manages your Google Calendar using GPT-4. Create, update, fetch, or delete events—just speak or message your request.

What this workflow does

• Receives commands in Telegram (including voice messages (.ogg) and text messages).
• Transcribes voice using OpenAI Whisper.
• Understands natural language in Romanian via GPT-4 (through LangChain).
• Connects to Google Calendar to:
  • Create Events
  • Update Events
  • Delete Events
  • Fetch Events
• Sends the results back via Telegram so you always know what changed.

Use cases

• Scheduling meetings: “Create a meeting tomorrow at 10” via text or voice.
• Quick reschedules: “Update my event to next Thursday” without opening Google Calendar.
• Agenda check-ins: “Fetch my events for today” and get a reply in Telegram.
• Clean-up tasks: “Delete the appointment at 15:00” when plans change.

Technical details (built with real integrations)

• Telegram Trigger and Telegram nodes (configured with updates set to ["message"])
• Voice transcription: OpenAI Whisper using an OpenAI credential in n8n
• AI reasoning & intent: GPT-4 via LangChain (n8n node: n8nn8n-nodes-langchainagent)
• Google Calendar integration: API actions for create/update/delete/fetch events
• Workflow logic nodes: if, set, and supporting nodes (including Sticky Note for clarity)

SEO keywords

n8n Telegram bot, AI calendar assistant, Google Calendar automation, voice commands, OpenAI Whisper, GPT-4 LangChain.