api-rate-limiting

Per-key rate limiting is implemented by enforcing quotas based on API keys and plan tiers instead of IP addresses. This approach ensures fair usage across high-traffic API platforms by applying distributed, identity-aware throttling.

To prevent billing spikes, implement cost protection guards for metered downstream services like LLMs. This fail-closed billing protection strategy prevents runaway costs by budgeting downstream route expenses.

GraphQL cost analysis is applied by implementing complexity and depth guardrails. This prevents resource-intensive query amplification by evaluating the computational expense of incoming GraphQL queries before execution.

API rate limiting works for high-traffic distributed backend services by applying identity-aware throttling. It enforces tiered quotas and standard quota headers across distributed API gateways to prevent service degradation.

You audit your API implementation by analyzing current routes to identify missing per-key quotas and cost-budgeting gaps. This process specifically targets metered downstream routes to secure the platform against API abuse.