HTTP 427 — Unassigned

This status code is unassigned and should not be used in HTTP responses

When to use it

Use status 427 when this is the correct HTTP response semantic: This status code is unassigned and should not be used in HTTP responses

Request and response example

GET /protected-resource HTTP/1.1
Host: api.example.com

HTTP/1.1 427 Unassigned
Content-Type: application/json

{"error":"Request cannot be completed"}

Related status codes

400, 401, 402, 403

References

MDN · RFC 9110