The flow
Starts it 4Model 8Logic 4
The steps in the order they run, from what starts it.
- 1Error TriggerError triggerStarts it
- 2Google Gemini Chat ModelLm Chat Google GeminiModel
- 3User Chat TriggerChat triggerStarts it
- 4Persistent Chat HistoryMemory Postgres ChatModel
- 5Upload Knowledge Base FormForm triggerStarts it
- 6Text ChunkerText Splitter Character Text SplitterModel
- 7Gemini EmbeddingsEmbeddings Google GeminiModel
- 8Format Error AlertSetLogic
- 9Knowledge-Base AI AgentAgentModel
- 10Parse File SizeCodeLogic
- 11Document ParserDocument Default Data LoaderModel
- 12Supabase RetrieverVector Store SupabaseModel
- 13Supabase InserterVector Store SupabaseModel
- 14File < 10MB?IfLogic
- 15Success ResponseRespond To WebhookStarts it
- 16Reject UploadStop And ErrorLogic
How it's built
- Starts on
- Someone opening a chat with it
- Steps
- 16, with 1 branch
- Size
- Medium: a working afternoon
- Connects to
- Supabase vectors
- Model
- Gemini
- 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 Supabase vectors account, and a key for Gemini. You connect your own accounts after importing it; none are included.
What starts it?
It starts on someone opening a chat with it.
Does it use AI?
Yes. It calls Gemini. 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?
Plan an afternoon. 16 steps is enough that you should read each one before running it.
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.
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 16 steps before you point it at anything that matters.