Extract insights & analyse YouTube comments via AI agent chat
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: AI Agent v1 (old agent modes). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 22 nodes and runs when a chat message arrives (plus 1 other trigger). Along the way it connects OpenAI Chat Model, Postgres Chat Memory and OpenAI.
How it runs
Trigger: When a chat message arrives (plus 1 other trigger).
- AI Agent: runs an AI agent, with model: OpenAI Chat Model; 7 tools (search, analyze_thumbnail, get_list_of_videos, get_channel_details…); memory: Postgres Chat Memory
- Switch: routes items into 7 branches
- Get Channel Details (HTTP Request): calls an HTTP API
- Get Video Description (HTTP Request): calls an HTTP API
- Get Comments (HTTP Request): calls an HTTP API
- Run Query (HTTP Request): calls an HTTP API
- Get Videos by Channel (HTTP Request): calls an HTTP API
- OpenAI: analyze (image)
- Get Video Transcription (HTTP Request): calls an HTTP API (POST)
- Response (Edit Fields (Set)): sets 1 field: response
…plus 1 more step. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- AI Agent v1 (old agent modes) in AI Agent (v1.6): replace with Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent.
Rather not rewrite it? Many of these flows can be rebuilt in Make (free plan).
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) AI Agent (v1.6) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (10)
- OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Call n8n Workflow Tool
@n8n/n8n-nodes-langchain.toolWorkflow - Postgres Chat Memory
@n8n/n8n-nodes-langchain.memoryPostgresChat - AI Agent
@n8n/n8n-nodes-langchain.agent - Chat Trigger
@n8n/n8n-nodes-langchain.chatTrigger - HTTP Request
n8n-nodes-base.httpRequest - Execute Workflow Trigger
n8n-nodes-base.executeWorkflowTrigger - Edit Fields (Set)
n8n-nodes-base.set - Switch
n8n-nodes-base.switch - OpenAI
@n8n/n8n-nodes-langchain.openAi
From the author
Video Guide I prepared a detailed guide to help you set up your workflow effectively, enabling you to extract insights from YouTube for content generation using an AI agent. Youtube Link Who is this for? This workflow is ideal for content creators, marketers,…