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Amplify applies the following default v1 limits: Endpoint- or plan-specific overrides may apply. Responses expose the active limit through these headers:
  • X-RateLimit-Limit: Maximum requests in the current window
  • X-RateLimit-Remaining: Requests remaining
  • X-RateLimit-Reset: Unix timestamp when the window resets
  • Retry-After: Seconds to wait after a 429 response
When the API returns 429 Too Many Requests, pause until Retry-After or X-RateLimit-Reset, then retry with exponential backoff and jitter.