Automation library · AI assistants

Create a knowledge base chatbot with Google Drive and OpenAI

Started by another system calling it, and works across Google Drive and in-memory vectors. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 20 steps: a working afternoon to understand properly.

MediumCalls a model: OpenAIRetrieval

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20 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 3Model 11Logic 2Service 4

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

  1. 1Recursive Character Text SplitterText Splitter Recursive Character Text SplitterModel
  2. 2Embeddings OpenAIEmbeddings Open AiModel
  3. 3OpenAI Chat ModelLm Chat Open AiModel
  4. 4Embeddings OpenAI1Embeddings Open AiModel
  5. 5OpenAI Chat Model1Lm Chat Open AiModel
  6. 6WebhookWebhookStarts it
  7. 7File created in the FolderGoogle Drive triggerStarts it
  8. 8File updated in the FolderGoogle Drive triggerStarts it
  9. 9Window Buffer MemoryMemory Buffer WindowModel
  10. 10Default Data LoaderDocument Default Data LoaderModel
  11. 11Simple Vector StoreVector Store In MemoryModel
  12. 12AI AgentAgentModel
  13. 13Simple Vector Store2Vector Store In MemoryModel
  14. 14Answer questions with a vector storeTool Vector StoreModel
  15. 15Edit FieldsSetLogic
  16. 16Search Files in your Google Drive FolderGoogle DriveService
  17. 17Is AI Agent output exist?CodeLogic
  18. 18Download FilesGoogle DriveService
  19. 19Token AuthenticationHttp RequestService
  20. 20Send to Chat AppHttp RequestService

How it's built

Starts on
Another system calling it
Steps
20
Size
Medium: a working afternoon
Connects to
Google Drive, in-memory vectors
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 and in-memory vectors accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling 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. 20 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 20 steps before you point it at anything that matters.