Automation library · Chat assistants

AI agent - RAG Telegram chatbot n8n with OpenAI

Started by an incoming Telegram message, and works across Google Drive, Supabase vectors and Telegram. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 22 steps, 2 branches, 1 loop or waits: large, and worth reading before you trust it with anything live.

LargeCalls a model: OpenAIRetrieval

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22 stepsLarge: read it before trusting it with anything live
2Branches: places the flow splits
1Loop or waits
3Services it connects to

The flow

Starts it 2Model 9Logic 6Service 5

The steps in the order they run, from what starts it.

  1. 1When clicking 'Test workflow'Manual triggerStarts it
  2. 2Telegram TriggerTelegram triggerStarts it
  3. 3OpenAI Chat ModelLm Chat Open AiModel
  4. 4Recursive Character Text SplitterText Splitter Recursive Character Text SplitterModel
  5. 5Embeddings OpenAIEmbeddings Open AiModel
  6. 6Embeddings OpenAI2Embeddings Open AiModel
  7. 7Set Folder/ File URL in Google DriveSetLogic
  8. 8ValidationSetLogic
  9. 9Question and Answer ChainChain Retrieval QaModel
  10. 10Default Data LoaderDocument Default Data LoaderModel
  11. 11Supabase Vector StoreVector Store SupabaseModel
  12. 12Supabase Vector Store2Vector Store SupabaseModel
  13. 13Download Folder/ FileGoogle DriveService
  14. 14Check User & Chat IDIfLogic
  15. 15Telegram ResponseTelegramService
  16. 16Response Error messageTelegramService
  17. 17Loop Over ItemsSplit In BatchesLogic
  18. 18Vector Store RetrieverRetriever Vector StoreModel
  19. 19Message RouterSwitchLogic
  20. 20Error messageTelegramService
  21. 21Download FileGoogle DriveService
  22. 22Add in MetadataCodeLogic

How it's built

Starts on
An incoming Telegram message
Steps
22, with 2 branches, 1 loop or waits
Size
Large: read it before trusting it with anything live
Connects to
Google Drive, Supabase vectors, Telegram
Model
OpenAI
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

An n8n account, plus your own Google Drive, Supabase vectors and Telegram accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an incoming Telegram message.

Does it use AI?

Yes. It calls OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Take your time. At 22 steps it is large: read it before trusting it with anything live.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 22 steps before you point it at anything that matters.