generated: '2026-09-05'
method: probed
source: 'https://video-cn.fly4k.com/api/auth/health'
name: 4K Garden (Diebian AI) rate limits
description: >-
  Rate-limit posture for the Diebian AI super-resolution API. The provider publishes no
  developer documentation, so there is no documented limit to record. This file reports
  a measured absence: response headers were inspected on live anonymous 200 responses
  and carried no rate-limit signal of any kind.
api: Diebian AI Super-Resolution API
limit_count: 0
documented: false
limits: []
response_headers:
  observed: []
  x_ratelimit_family: absent
  ratelimit_family: absent
  retry_after: absent
  note: >-
    Anonymous 200 responses from /api/auth/health, /api/user/credit-rules,
    /api/user/productList and /api/user/enterprise-plans were inspected on 2026-09-05.
    The only notable response header is `server: Tengine`. No throttling signal is
    emitted, so an agent has no runtime way to back off before being cut off.
exhaustion_status_code: null
exhaustion_note: >-
  No 429 response is declared on any of the 63 operations in the contract.
throttling_surrogate:
  note: >-
    The commercial constraint on this API is the prepaid credit balance rather than a
    request-rate limit. GET /api/user/balance and the credit rates in
    plans/4k-garden-plans-pricing.yml are the effective quota surface.
gaps:
- No published rate limits.
- No rate-limit response headers.
- No 429 declared in the contract.