Which OCI service can alert you when nearing your spending threshold?

The correct choice for alerting you when nearing your spending threshold is the Budgets service. This service is specifically designed to help you manage your costs in Oracle Cloud Infrastructure by setting budgets that track your spending against a defined threshold.

When you set a budget, you can specify an amount for your spending limit and receive alerts when your spending approaches or exceeds that limit. This feature is crucial for cost management, particularly in cloud environments where usage can fluctuate and costs can ramp up unexpectedly.

The Budgets service integrates seamlessly with other OCI services, allowing you to monitor your financial commitments effectively and take proactive measures to control costs. It ensures that you stay within your financial parameters by providing these notifications, enabling better financial governance in cloud resource usage.

The other services, while valuable in their own contexts, do not focus on spending thresholds in the same way. Monitoring is more aligned with tracking metrics and performance of resources, Events facilitate event-driven action, and Streaming pertains to real-time processing of data streams.