407

Data

{
  "classId": "4xx",
  "code": 407,
  "description": "The client must first authenticate with the proxy before the request can proceed. Similar to 401 but for proxy servers.",
  "isDeprecated": false,
  "reasonPhrase": "Proxy Authentication Required",
  "rfcReference": "RFC 9110"
}

History in this collection

1. addedv1.0.0Jun 12, 2026this version