GoogleGoogle APIs / gRPCError code

UNAUTHENTICATED

Alternative forms: 16 · google.rpc.Code.UNAUTHENTICATED

What does this code mean?

Code UNAUTHENTICATED · An issue reported by Google APIs / gRPC.

Official explanation · Original text

The request does not have valid authentication credentials for the operation. HTTP Mapping: 401 Unauthorized

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

General diagnostic guide
Google API error-handling design guide ↗
Product-wide · Not specific to this code
Code reference
Official explanation of status codes and retries ↗
Definition and explanation · Not troubleshooting steps

Source and terms of use

Google APIs canonical google.rpc.Code status definitions ↗

Creator: Google LLC
License: Apache License 2.0
Checked on: 2026-11-12

Modifications: Extracted enum names, numeric aliases, and official source comments; comment syntax removed; original Korean contexts added. Successful OK is labeled status, not error.

Source details · Original licenses and notices

UNAUTHENTICATED