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Best AI gateway for production workloads

Production checklist for picking an AI gateway: fallback chains, circuit breakers, billing transparency, SLA. How Anima scores on each.

By Anima Team· 6/15/2026· locale: en

  1. Q1What is the must-have feature list for a production AI gateway?

    Six items: (1) per-channel circuit breakers, (2) configurable fallback chains, (3) double-entry billing (upstream cost + sale price), (4) sk-level concurrency / QPS / token / cost quotas, (5) async task lifecycle for image / video / music, (6) admin escape hatches (kill switch, cache invalidate, manual breaker).

  2. Q2Does Anima have manual kill switches?

    Yes. POST /api/admin/v1/circuits/{channel}/open immediately opens the breaker, PATCH /api/admin/v1/channels/{code} enabled=false disables the channel, PATCH /api/admin/v1/apps/{id}/keys/{kid} enabled=false bans a single sk. All take effect via Redis pub/sub within ~1s.

  3. Q3How are queues handled?

    Three modes per sk: REJECT (immediate 429), WAIT (Redis ZSet wait queue with timeout), ASYNC (task_id is returned, a worker drains the queue). The mode is set on the user_api_key row and can be changed live without a deploy.

  4. Q4What metrics does the gateway expose?

    Prometheus at /actuator/prometheus: request count + latency histograms per channel / alias / app, circuit-breaker state, queue length, upstream cost vs charge spread. Grafana dashboards JSON ship with the repo.

  5. Q5Is configuration zero-downtime?

    Yes. Every config table (channel / alias / price / quota / sk / token-group) has a version_no optimistic lock plus effective_from/to time window. ConfigPublisher writes DB then publishes invalidation events; L1 (Caffeine) + L2 (Redis) caches refresh within 60s without restart.

  6. Q6What is the worst-case data path on failure?

    If both Redis and the primary DB go down, gateway returns 503 with a service_unavailable code. Read paths gracefully degrade to L1 in-process cache (30s TTL). Write paths refuse — billing integrity is preferred over availability.

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