n8n + AI: Building No-Code Automation Workflows with LLM Nodes and Agent Chains

n8n is an open-source workflow automation platform that now includes native AI capabilities — LLM nodes, vector store integration, and autonomous agent chains.

1. AI-Powered Workflow Example: Automated Lead Qualification

[ Webhook: New Lead Form ] → [ AI Agent Node: Qualify Lead ]
                                       |
                         ┌─────────────┼──────────────┐
                         v             v              v
                   [ High Score ]  [ Medium ]    [ Low Score ]
                         |             |              |
                   [ Slack Alert ] [ Email Nurture ] [ Archive ]
                         |
                   [ CRM: Create Opportunity ]

2. n8n AI Agent Configuration

{
  "node": "AI Agent",
  "parameters": {
    "agent_type": "tools_agent",
    "model": "claude-sonnet-4",
    "system_prompt": "You are a lead qualification specialist. Score leads 1-10 based on company size, budget indicators, and urgency signals.",
    "tools": [
      { "type": "calculator" },
      { "type": "web_search" },
      { "type": "vector_store", "collection": "ideal_customer_profiles" }
    ],
    "memory": {
      "type": "window_buffer",
      "window_size": 10
    }
  }
}

n8n democratizes AI automation — enabling marketing teams, operations managers, and business analysts to build sophisticated AI workflows without developer intervention.