401
⚠️ Client Error RFC 9110, Section 15.5.2
Unauthorized
The request requires user authentication. The client must authenticate itself to get the requested response.
Common Use
Not authenticated. Used when the client needs to log in or provide valid credentials (API keys, tokens, session cookies).
API Endpoint
https://codes.uncodigo.com/http/401 Example with curl
curl -i https://codes.uncodigo.com/http/401Try It
GET /http/401 Click "Send Request" to see the response...
Example
Request
GET /api/protected HTTP/1.1Response
HTTP/1.1 401 Unauthorized
WWW-Authenticate: BearerRelated Headers
WWW-Authenticate Authentication scheme required
WWW-Authenticate: Bearer realm="api"