Retrieve Answers from Knowledge Base with InfraNodus GraphRAG Chatbot — n8n Workflow

Low complexity⚡ Trigger5 nodes💎 Otherby InfraNodus

Overview

Basic AI Chatbot that Retrieves Answers From Knowledge Base Using GraphRAG.

Easiest setup, without vector database, external knowledge base, or OpenAI API keys. All you need is an InfraNodus graph with your knowledge.

In this workflow, user sends a request to the InfraNodus GraphRAG system that will extract a reasoning ontology from a graph that you create (or that you can copy from our repository of public graphs) and generate a response directly to the user.

How it works

Receives a reques

Nodes used

Get a response from knowledge baseWhen chat message receivedRespond to ChatWebhookRespond to WebhookSticky Note3

Workflow Preview

3. Show response to the user
The response obtained using InfraNodus GraphRAG is then
2. Query the Knowledge Base
Use the InfraNodus GraphRAG node to generate an answer
1. AI Chat Trigger
Use the n8n built-in chat for testing and then replace
Basic AI Chatbot Tutorial
- No vector store needed
- Uses GraphRAG and custom ontology for responses
Learn how to set up a simple AI chatbot without vector
G
Get a response from know…
⚡
W
When chat message received
R
Respond to Chat
⚡
W
Webhook
⚡
R
Respond to Webhook
5 nodes4 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a trigger trigger.

  2. 2

    Process

    Data flows through 5 nodes, connecting chat, chattrigger, n8n-nodes-infranodus.infranodus.

  3. 3

    Output

    The workflow completes its automation and delivers the result to the configured destination.

Node Details (5)

GE

Get a response from knowledge base

n8n-nodes-infranodus.infranodus

#1
WH

When chat message received

n8n-nodes-langchain.chatTrigger

#2
RE

Respond to Chat

n8n-nodes-langchain.chat

#3
WE

Webhook

webhook

#4
RE

Respond to Webhook

respondToWebhook

#5
ST

Sticky Note3

stickyNote

#6

How to Import This Workflow

  1. 1Click Download JSON button on the right to save the workflow file.
  2. 2Open your n8n instance. Go to Workflows → New → Import from file.
  3. 3Select the downloaded retrieve-answers-from-knowledge-base-with-infranodus-graphrag-chatbot file and click Import.
  4. 4Set up credentials for each service node (API keys, OAuth, etc.).
  5. 5Click Test Workflow to verify everything works, then activate it.

Or paste directly in n8n → Import from JSON:

{ "name": "Retrieve Answers from Knowledge Base with InfraNodus GraphRAG Chatbot", "nodes": [...], ...}

Integrations

chatchattriggern8n-nodes-infranodus.infranodusrespondtowebhookwebhook

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes5
Complexitylow
Triggertrigger
CategoryOther

Created by

InfraNodus

InfraNodus

@infranodus

Tags

chatchattriggern8n-nodes-infranodus.infranodusrespondtowebhookwebhook
⚡

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