Fraudulent booking detector: Identify suspicious travel transactions with Google Gemini
Needs changesWhat this workflow does
This AI workflow has 14 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects Google Sheets, Google Gemini Chat Model and Gmail. It also calls oneclicktracker.in over HTTP.
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- Extract Booking Data (Edit Fields (Set)): sets or maps fields
- IP Geolocation Check (HTTP Request): calls an HTTP API
- AI Agent: runs an AI agent, with model: Google Gemini Chat Model
- Enhanced Risk Calculator (Code): runs custom JavaScript code
- Critical Risk Check (If): checks a condition and branches into true / false
- High Risk Check (If): checks a condition and branches into true / false
- Log to Google Sheets (Google Sheets): append
- Block User Account (HTTP Request): calls oneclicktracker.in
- Send a message (Gmail): uses Gmail
- Flag for Review (HTTP Request): calls oneclicktracker.in
…plus 2 more steps. See the full node list below.
Services it uses
HTTP calls to: oneclicktracker.in
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 (v1.9): 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 (v1.9) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (10)
- Webhook
n8n-nodes-base.webhook - Edit Fields (Set)
n8n-nodes-base.set - HTTP Request
n8n-nodes-base.httpRequest - Code
n8n-nodes-base.code - If
n8n-nodes-base.if - Google Sheets
n8n-nodes-base.googleSheets - Respond to Webhook
n8n-nodes-base.respondToWebhook - AI Agent
@n8n/n8n-nodes-langchain.agent - Google Gemini Chat Model
@n8n/n8n-nodes-langchain.lmChatGoogleGemini - Gmail
n8n-nodes-base.gmail
From the author
This automated n8n workflow detects and manages fraudulent booking transactions through comprehensive AI-powered analysis and multi-layered security checks. The system processes incoming travel booking data, performs IP geolocation verification, enriches…