Interactive reference directory for 2xx, 3xx, 4xx, and 5xx HTTP response status codes and API specifications.
Standard successful HTTP request response.
Request fulfilled and new resource created.
Successfully processed request with no response body content.
Resource URI permanently moved to new location.
Resource temporarily located at another URI.
Cached version is up to date, no body transmitted.
Server cannot process request due to client syntax error.
Authentication credentials required or invalid.
Client lacks permissions to access requested resource.
Server cannot find requested URL or resource.
HTTP request method (GET, POST) not supported by endpoint.
Request conflicts with current target resource state.
Semantic error in request payload validation.
Client rate limit exceeded within given timeframe.
Server encountered unexpected condition preventing request fulfillment.
Invalid response received from upstream gateway server.
Server temporarily offline for maintenance or overloaded.
Upstream server failed to send response in time.
Filter HTTP status codes by category pills (2xx Success, 4xx Client Error, 5xx Server Error).
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Click any status card to copy code and name.
401 Unauthorized means client identity is unknown. 403 Forbidden means client identity is known but access permission is denied.