AWS Azure GCP multi-cloud cost monitoring & alerts for budget control

This automated n8n workflow tracks hourly cloud spending across AWS, Azure, and GCP. It detects cost spikes or budget overruns in real time, tags affected resources, and sends alerts via email, WhatsApp, or Slack. This ensures proactive cost management and prevents budget breaches.

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Good to Know

AWS, Azure, and GCP APIs must have read access to billing data. Use secure credentials for API keys or service accounts. The workflow runs every hour for near real-time cost tracking. Alerts can be sent to multiple channels (Email, WhatsApp, Slack). Tags are applied automatically to affected resources for easy tracking.

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How It Works

1. Hourly Cron Trigger – Starts the workflow every hour to fetch updated billing data. 2. AWS Billing Fetch – Retrieves latest cost and usage data via AWS Cost Explorer API. 3. Azure Billing Fetch – Retrieves subscription cost data from Azure Cost Management API. 4. GCP Billing Fetch – Retrieves project-level spend data using GCP Cloud Billing API. 5. Data Parser – Combines and cleans data from all three clouds into a unified format. 6. Cost Spike Detector – Identifies unusual spending patterns or budget overruns. 7. Owner Identifier – Matches resources to their respective owners or teams. 8. Auto-Tag Resource – Tags the affected resource for quick identification and follow-up. 9. Alert Sender – Sends notifications through Email, WhatsApp, and Slack with detailed cost reports.

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