name: Numbers API Rate Limits
description: Rate limiting policies for the Numbers API service.
url: http://numbersapi.com/
rateLimits:
  - plan: Free
    requests: unlimited
    period: none
    authentication: none
    notes: >
      The Numbers API publishes no formal hard rate limits. It is a free
      community service and requests are accepted on a best-effort basis.
      Consumers should implement client-side caching for frequently requested
      numbers to avoid tight request loops and be considerate of shared
      infrastructure.
guidance:
  - Implement caching for frequently requested number/date combinations.
  - Avoid high-frequency polling loops against the same endpoints.
  - Use the consistent/static nature of responses (same number always returns
    the same fact) to cache responses indefinitely or for long TTLs.
  - For server-rendered applications, proxy requests server-side and cache
    at the application layer rather than making per-user API calls.