Telegram AI Bot with LangChain Nodes

n8n AI Internet of Things Content Creation

Contributed by Sabrina Ramonov 🍄. From the community directory at agents.sabrina.dev, republished with permission and full credit.

This workflow connects Telegram bots with LangChain nodes in n8n. The main AI Agent Node is configured as a Conversation Agent. It has a custom System Prompt which explains the reply formatting and provides some additional instructions.

The AI Agent has several connections:

- OpenAI GPT-4 model is called to generate the replies.

- Window Buffer Memory stores the history of conversation with each user separately.

- There is an additional Custom n8n Workflow tool (Dall-E 3 Tool). The AI Agent uses this tool when the user requests an image generation.

In the lower part of the workflow, there is a series of nodes that call the Dall-E 3 model with the user Telegram ID and a prompt for a new image. Once the image is ready, it is sent back to the user.

Finally, there is an extra Telegram node that masks HTML syntax for improved stability in case the AI Agent replies using the unsupported format.

Tools used: OpenAI ChatGPT, Telegram

Download the workflow template (JSON)

Original tutorial

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