protection boundary
Rate limit
Rate Limit
Also known as · rate limiting · request quota · call limit
Definition
A policy that limits request volume by time, subject, or route to protect resources and external spend. The contract includes the exceeded response and retry guidance, not just a number.
Searchable examples
- 60 requests / minute
- HTTP 429
Short example
HTTP/1.1 429 Too Many Requests
Retry-After: 12
Review privacy and bypass risk when choosing IP, account, or API-key identity.