Automation library · Chat assistants

WhatsApp virtual agent with Gemini

Started by an incoming WhatsApp message, and works across Pinecone and WhatsApp. It puts Gemini behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 15 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: GeminiRetrieval

15 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 7Logic 3Service 4

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

  1. 1Google Gemini Chat ModelLm Chat Google GeminiModel
  2. 2Simple MemoryMemory Buffer WindowModel
  3. 3Google Gemini Chat Model1Lm Chat Google GeminiModel
  4. 4Embeddings Google GeminiEmbeddings Google GeminiModel
  5. 5WhatsApp TriggerWhats App triggerStarts it
  6. 6AI AgentAgentModel
  7. 7Answer questions with a vector storeTool Vector StoreModel
  8. 8Pinecone Vector StoreVector Store PineconeModel
  9. 9Audio/MessageSwitchLogic
  10. 10Send messageWhats AppService
  11. 11Get Audio URLWhats AppService
  12. 12Audio DownloadHttp RequestService
  13. 13Audio ConvertCodeLogic
  14. 14Gemini speech to textHttp RequestService
  15. 15Audio PromptSetLogic

How it's built

Starts on
An incoming WhatsApp message
Steps
15, with 1 branch
Size
Medium: a working afternoon
Connects to
Pinecone, WhatsApp
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 Pinecone and WhatsApp accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an incoming WhatsApp message.

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. 15 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 15 steps before you point it at anything that matters.