Automation library · AI assistants

Multi-source RAG system with OpenAI

Started by someone submitting a form. It calls services over plain HTTP rather than through connectors. It hands the judgement calls to OpenAI. 12 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: OpenAI

12 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
0Services by connector: it calls them over plain HTTP

The flow

Starts it 2Model 1Logic 5Service 4

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

  1. 1🚀 Advanced RAG FormForm triggerStarts it
  2. 2🏢 Internal Knowledge SearchGoogle Drive SearchService
  3. 3🌐 Enhanced Web SearchWeb SearchService
  4. 4🔍 Query PreprocessorCodeLogic
  5. 5🔄 Search RouterIfLogic
  6. 6🎓 Academic Papers SearchHttp RequestService
  7. 7📰 News Search APIHttp RequestService
  8. 8📊 Data AggregatorCodeLogic
  9. 9🧠 Context BuilderCodeLogic
  10. 10🤖 Advanced LLM ProcessorOpen AiModel
  11. 11✨ Response EnhancerCodeLogic
  12. 12📤 Webhook ResponseRespond To WebhookStarts it

How it's built

Starts on
Someone submitting a form
Steps
12, with 1 branch
Size
Medium: a working afternoon
Connects to
Nothing by connector; it calls services over plain HTTP
Model
OpenAI

Questions

What does it need to run?

An n8n 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. 12 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 12 steps before you point it at anything that matters.