Automation library · Money admin

Receipt Processing AI Agent with OpenAI and Gmail

Started by an event in a connected app, and works across Gmail, Google Drive and Google Sheets. It hands the judgement calls to OpenAI. 8 steps: small enough to read in one sitting and change without fear.

SmallCalls a model: OpenAI

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8 stepsSmall: readable in one sitting
0Branches: places the flow splits
0Loops or waits
3Services it connects to

The flow

Starts it 1Model 3Logic 1Service 3

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

  1. 1Monitor Receipts FolderGoogle Drive triggerStarts it
  2. 2OpenAI Chat ModelLm Chat Open AiModel
  3. 3Structured Output ParserOutput Parser StructuredModel
  4. 4Download fileGoogle DriveService
  5. 5Extract Receipt Data with AIAgentModel
  6. 6Append Receipt to Google SheetGoogle SheetsService
  7. 7Convert Receipt to HTML TableHtmlLogic
  8. 8Send Receipt Email NotificationGmailService

How it's built

Starts on
An event in a connected app
Steps
8
Size
Small: readable in one sitting
Connects to
Gmail, Google Drive, Google Sheets
Model
OpenAI

Questions

What does it need to run?

An n8n account, plus your own Gmail, Google Drive 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?

Not long. At 8 steps it can be read in one sitting and changed without fear.

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 8 steps before you point it at anything that matters.