a6-plugin-limit-count

Overview

The limit-count plugin rate-limits requests using a counter in a time window. Define a maximum number of requests (count) within an interval (time_window). The default window_type is fixed. Set window_type: sliding to smooth bursts at window boundaries. Supports per-IP, per-consumer, per-header, or custom variable keys. For distributed APISIX deployments, share counters through Redis, Redis Cluster, or Redis Sentinel (policy: redis-sentinel).

Redis Sentinel, sliding windows, and delayed Redis synchronization (sync_interval) are available from APISIX 3.18.0. Field tables and examples: https://docs.api7.ai/hub/limit-count

When to Use