Complete reference guide for HTTP status codes, error messages, and their detailed meanings. Useful resource for web developers and API debugging.
The server has received the request headers and the client should proceed to send the request body.
101
1XXSwitching Protocols
The requester has asked the server to switch protocols and the server has agreed to do so.
Standard response for successful HTTP requests.
The request has been fulfilled, resulting in the creation of a new resource.
The request has been accepted for processing, but the processing has not been completed.
The server successfully processed the request and is not returning any content.
This and all future requests should be directed to the given URI.
Tells the client to look at (browse to) another URL.
Indicates that the resource has not been modified since the version specified by the request headers.
The request should be repeated with another URI; however, future requests should still use the original URI.
The request and all future requests should be repeated using another URI.
The server cannot or will not process the request due to an apparent client error.
Similar to 403 Forbidden, but specifically for use when authentication is required and has failed or has not yet been provided.
The request contained valid data and was understood by the server, but the server is refusing action.
The requested resource could not be found but may be available in the future.
A request method is not supported for the requested resource.
Indicates that the request could not be processed because of conflict in the current state of the resource.
422
4XXUnprocessable Entity
The request was well-formed but was unable to be followed due to semantic errors.
The user has sent too many requests in a given amount of time (rate limiting).
500
5XXInternal Server Error
A generic error message, given when an unexpected condition was encountered and no more specific message is suitable.
The server was acting as a gateway or proxy and received an invalid response from the upstream server.
503
5XXService Unavailable
The server cannot handle the request (because it is overloaded or down for maintenance).
The server was acting as a gateway or proxy and did not receive a timely response from the upstream server.