API Uptime Monitoring with WhatsApp Alerts & Google Sheets

This n8n workflow provides robust API uptime monitoring by fetching a list of API endpoints from a Google Sheet and testing each one every 15 minutes via scheduled triggers. It includes sophisticated retry logic: upon initial failure, it waits 10 minutes, increments a counter, and retries up to 4 times before confirming downtime. If confirmed down, it formats a detailed alert and sends it via WhatsApp to the configured number, ensuring quick notifications without manual intervention.

The workflow processes APIs in a loop, handling each independently to avoid single points of failure. Google Sheets serves as a dynamic configuration source, allowing easy addition, removal, or editing of APIs (e.g., URLs, methods, expected status codes) without workflow changes. This setup supports customizable HTTP requests, making it adaptable to various API types.

Ideal for IT teams, DevOps, and Industrial IoT applications where service reliability is critical, such as monitoring factory sensors, cloud services, or third-party APIs. Benefits include reduced downtime response time, centralized management via Sheets, cost-effective alerting via WhatsApp, and scalability for hundreds of endpoints. Save hours of manual monitoring and prevent business disruptions with this reliable, production-ready automation.