Allow your AI to call an API to fetch data
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 11 nodes and runs when a chat message arrives (plus 1 other trigger). Along the way it connects OpenAI Chat Model. It also calls bored-api.appbrewery.com over HTTP.
How it runs
Trigger: When a chat message arrives (plus 1 other trigger).
- AI Agent: runs an AI agent, with model: OpenAI Chat Model; 1 tool (Activity Tool); memory: Simple Memory
- Work out activity type and number of people (Information Extractor): extracts structured fields from text with AI, with model: OpenAI Chat Model
- Call the API (HTTP Request): calls bored-api.appbrewery.com
- Combine (Aggregate): combines items into one
- Set 'response' value (Edit Fields (Set)): sets 1 field: response
Services it uses
HTTP calls to: bored-api.appbrewery.com
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 (v1.8): 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 (v1.8) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (10)
- Chat Trigger
@n8n/n8n-nodes-langchain.chatTrigger - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - Execute Workflow Trigger
n8n-nodes-base.executeWorkflowTrigger - Information Extractor
@n8n/n8n-nodes-langchain.informationExtractor - HTTP Request
n8n-nodes-base.httpRequest - Call n8n Workflow Tool
@n8n/n8n-nodes-langchain.toolWorkflow - Edit Fields (Set)
n8n-nodes-base.set - Aggregate
n8n-nodes-base.aggregate - AI Agent
@n8n/n8n-nodes-langchain.agent
From the author
Use n8n to bring data from any API to your AI. This workflow uses the Chat Trigger to provide the chat interface, and the Custom n8n Workflow Tool to call a second workflow that calls the API. The second workflow uses AI functionality to refine the API…