Look up a status, pick the right one for an API, or hit a live endpoint that actually returns it. Add ?code=418 to this URL and the response is that status — useful for curl, interceptors, and “what does my client do on 503?” Nothing here phones home except the Try it fetch to this same page.
Which class?
The request was well-formed but semantically invalid. Older WebDAV name: Unprocessable Entity.
When to use
JSON parsed, but email is invalid, or a required field is missing. Very common in REST APIs.
Don’t
Broken JSON or wrong Content-Type is 400/415. Auth is 401/403.
Live URL
curl -i https://corecoding.com/utilities/http-status.php?code=422
No codes match.
Code use cases