Automation library · Documents and files

Bank Statement OCR to Oracle Database with Mistral and OpenAI

Started by someone submitting a form, and works across Gmail. It hands the judgement calls to OpenAI. 16 steps, 1 loop or waits: a working afternoon to understand properly.

MediumCalls a model: OpenAI

Download free
16 stepsMedium: a working afternoon
0Branches: places the flow splits
1Loop or waits
1Service it connects to

The flow

Starts it 1Model 2Logic 5Service 8

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

  1. 1Bank Statement Upload FormForm triggerStarts it
  2. 2GPT-5-mini (or GPT-4o-mini)Lm Chat Open AiModel
  3. 3Upload PDF to MistralHttp RequestService
  4. 4Extract Bank Data with GPTAgentModel
  5. 5Get Signed URL from MistralHttp RequestService
  6. 6Parse AI JSON OutputCodeLogic
  7. 7Call Mistral OCRHttp RequestService
  8. 8For Each Extracted AccountSplit In BatchesLogic
  9. 9Extract OCR JSONExtract From FileService
  10. 10Send a messageGmailService
  11. 11Get Next Master IDOracle DatabaseService
  12. 12Attach Master ID & Original DataSetLogic
  13. 13Prepare Master Table RowCodeLogic
  14. 14Insert into Master TableOracle DatabaseService
  15. 15Prepare Detail RowsCodeLogic
  16. 16Insert Detail RowsOracle DatabaseService

How it's built

Starts on
Someone submitting a form
Steps
16, 1 loop or waits
Size
Medium: a working afternoon
Connects to
Gmail
Model
OpenAI

Questions

What does it need to run?

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

What starts it?

It starts on someone submitting a form.

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.