Proxy Authentication Required
HTTP 407 Proxy Authentication Required is a Client errors (4xx) status code. The client must authenticate with a proxy before the request can proceed.
What 407 means
The client must authenticate with a proxy before the request can proceed.
Like 401 but for a proxy, using the Proxy-Authenticate header.
Client errors (4xx)
The request contains an error from the client — bad syntax, missing auth or a wrong URL.
Other 4xx codes
FAQ — 407
What does HTTP 407 mean?
407 Proxy Authentication Required: The client must authenticate with a proxy before the request can proceed. Like 401 but for a proxy, using the Proxy-Authenticate header.
Which class does status code 407 belong to?
407 is a Client errors (4xx) code. The request contains an error from the client — bad syntax, missing auth or a wrong URL.
Where is the 407 code defined?
Status code 407 is defined in RFC 9110 and is part of the IANA HTTP Status Code Registry.