Automation library · AI assistants

Run a multi-session chat agent with OpenAI

Started by someone opening a chat with it, and works across n8n data table. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 11 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: OpenAIRetrieval

11 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
1Service it connects to

The flow

Starts it 1Model 3Logic 2Service 5

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

  1. 1Simple MemoryMemory Buffer WindowModel
  2. 2When chat message receivedChat triggerStarts it
  3. 3OpenAI Chat ModelLm Chat Open AiModel
  4. 4lookup_past_session_by_emailData Table ToolService
  5. 5update_chat_session_recordData Table ToolService
  6. 6lookup_past_session_by_nameData Table ToolService
  7. 7AI AgentAgentModel
  8. 8Search session_idData TableService
  9. 9Found session_idIfLogic
  10. 10Load past session dataSetLogic
  11. 11New session recordData TableService

How it's built

Starts on
Someone opening a chat with it
Steps
11, with 1 branch
Size
Medium: a working afternoon
Connects to
n8n data table
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, and a key for OpenAI. 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 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?

Plan an afternoon. 11 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.

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 11 steps before you point it at anything that matters.