This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

Telegram Voice AI Assistant

This n8n template creates a multimodal Telegram bot that dynamically responds to users:

• Replies with voice when receiving voice messages (using ElevenLabs TTS)

• Replies with text for text-based queries

• Supports custom AI tools (e.g., crypto APIs, databases, or custom functions)

Built with LangChain Agents, it can integrate any external API or data source into conversations.

Key Features

🎙️ Smart Response Logic

• Voice Query? → Voice Reply

1. Transcribes audio via ElevenLabs STT
2. Processes with AI (Groq/Gemini)
3. Converts text response to natural speech (ElevenLabs TTS)

• Text Query? → Text Reply
  Bypasses TTS/STT for faster responses

🛠️ Extensible AI Tools
Add your own tools:

• Database lookups
• Weather/stock APIs
• Custom Python functions
• RAG (document retrieval)

Supports multi-step tool chaining (e.g., "Get BTC price → analyze trends → summarize")

🌐 Language & Context

• Auto-detects user language (via Telegram’s language_code)
• Maintains session memory (remembers conversation history)

Use Cases

• Voice-first customer support
• Crypto/analytics assistants (e.g., "What’s Ethereum’s current gas fee?")
• Multilingual FAQ bots
• Educational tutors (voice-interactive learning)

Requirements

• Telegram Bot Token
• ElevenLabs API Key (For TTS/STT)
• Groq API Key or Google Gemini API Key

Customization Tips

• Change AI personality: Modify the systemMessage in the Voice Assistant node
• Add more models: Swap Groq/Gemini for OpenAI, Anthropic, etc.
• Extend functionality: Add RAG (Retrieval-Augmented Generation) for document queries

Take this template to create a Siri-like AI assistant for Telegram in minutes! 🚀