Make OpenAI Citation for File Retrieval RAG

Within N8N, there will be a chat button to test

Workflow Structure (12 nodes)
100%
Split Out
Split all message iterations from a thread
Langchain.chat Trigger
Create a simple Trigger to have the Chat button within N8N
Split Out
Split all content from a single message
Langchain.open Ai
OpenAI Assistant with Vector Store
Split Out
Split all citations from a single message
Langchain.memory Buffer Window
Window Buffer Memory
Http Request
Get ALL Thread Content
Http Request
Retrieve file name from a file ID
Set
Regularize output
Aggregate
Aggregate
Code
Finnaly format the output
Markdown
Optional Markdown to HTML
Node Types:
transform
default
trigger
http
logic
code
Requires credentials

Prerequisites

Required Credentials (1)

OpenAI

Used by: OpenAI Assistant with Vector Store, Get ALL Thread Content +1 more

Docs

Complexity

Complex

Advanced features used. Requires n8n experience.

Setup time: ~30 min
Score: 48/100
Custom Code

When to Use This Workflow

AI-Powered Content Creation

Automate content generation, summarization, or analysis using AI capabilities.

Save hours of manual work while maintaining quality and consistency.

Real-time Response

React instantly when events happen - new orders, form submissions, or API calls.

Zero delay between trigger and action for time-sensitive workflows.

Error Reduction

Eliminate human error from routine processes with consistent automation.

Improve accuracy and reliability across your workflows.

workflow.json
{
  "id": "5NAbfX550LJsfz6f",
  "meta": {
    "instanceId": "00493e38fecfc163cb182114bc2fab90114038eb9aad665a7a752d076920d3d5",
    "templateCredsSetupCompleted": true
  },
  "name": "Make OpenAI Citation for File Retrieval RAG",
  "tags": [
    {
      "id": "urxRtGxxLObZWPvX",
      "name": "sample",
      "createdAt": "2024-09-13T02:43:13.014Z",
      "updatedAt": "2024-09-13T02:43:13.014Z"
    },
    {
      "id": "nMXS3c9l1WqDwWF5",
      "name": "assist",
      "createdAt": "2024-12-23T16:09:38.737Z",
      "updatedAt": "2024-12-23T16:09:38.737Z"
    }
...

Workflow Details

Nodes
19
Trigger
Event
Source
awesome
Added
Dec 4, 2025

Need Help?

Check out the official n8n documentation for detailed guides.

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