Find valid vouchers and promo codes with SerpAPI, Decodo, and GPT-5 Mini
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: SerpApi (Google Search). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 6 nodes and runs when a chat message arrives. Along the way it connects SerpApi (Google Search), Azure OpenAI Chat Model and Decodo (community).
How it runs
Trigger: When a chat message arrives.
- Promo Seeker Agent (AI Agent): runs an AI agent, with model: Gpt 5 Mini; 2 tools (SerpAPI, Decodo Scrapper API); memory: Chat Memory
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:
- SerpApi (Google Search) in SerpAPI: no direct replacement: call the SerpApi REST API with an HTTP Request tool, or use a verified community node.
Rather not rewrite it? Many of these flows can be rebuilt in Make (free plan).
| Removed in 3.0 | Replace with |
|---|---|
| SerpApi (Google Search) SerpAPI | No direct replacement: call the SerpApi REST API with an HTTP Request tool, or use a verified community node |
Nodes used (6)
- SerpApi (Google Search)
@n8n/n8n-nodes-langchain.toolSerpApi - Chat Trigger
@n8n/n8n-nodes-langchain.chatTrigger - Azure OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatAzureOpenAi - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - AI Agent
@n8n/n8n-nodes-langchain.agent - Decodo Tool
@decodo/n8n-nodes-decodo.decodoTool
From the author
Promo Seeker finds fresh, working promo codes and vouchers on the web so your team never misses a deal. This n8n workflow uses SerpAPI and Decodo Scrapper for real-time search, an agent powered by GPT-5 Mini for filtering and validation, and Chat Memory to…