Automation library · Alerts and monitoring

Automated smart price monitor with Google Sheets and Gmail

Started by an event in a connected app, and works across Gmail and Google Sheets. It hands the judgement calls to OpenAI. 16 steps, 1 branch, 1 loop or waits: a working afternoon to understand properly.

MediumCalls a model: OpenAI

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16 stepsMedium: a working afternoon
1Branch: places the flow splits
1Loop or waits
2Services it connects to

The flow

Starts it 1Model 2Logic 7Service 6

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

  1. 1Manual TriggerManual triggerStarts it
  2. 2OpenAI Chat ModelLm Chat Open AiModel
  3. 3Get ProductsGoogle SheetsService
  4. 4AI AgentAgentModel
  5. 5Loop ProductsSplit In BatchesLogic
  6. 6Parse AI ResponseCodeLogic
  7. 7Fetch Product PageHttp RequestService
  8. 8Generate ChartCodeLogic
  9. 9Extract PriceHtmlLogic
  10. 10Should Buy?IfLogic
  11. 11Get Price HistoryGoogle SheetsService
  12. 12Send Email AlertGmailService
  13. 13Update Products SheetGoogle SheetsService
  14. 14Check DuplicateCodeLogic
  15. 15Add to HistoryGoogle SheetsService
  16. 16Prepare AI DataCodeLogic

How it's built

Starts on
An event in a connected app
Steps
16, with 1 branch, 1 loop or waits
Size
Medium: a working afternoon
Connects to
Gmail, Google Sheets
Model
OpenAI

Questions

What does it need to run?

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

What starts it?

It starts on an event in a connected app.

Does it use AI?

Yes. It calls OpenAI. 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.

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 16 steps before you point it at anything that matters.