---
title: "Unauthenticated"
description: "Auto doesn't know who sent the request, so it didn't act on it. The request had no credential, or its API key or sign-in token isn't one Auto accepts."
url: "https://on.auto/problems/unauthenticated"
last_updated: "2026-11-10T14:41:54+00:00"
---

# Unauthenticated

## What it means

Auto doesn't know who sent the request, so it didn't act on it. The request had no credential, or its API key or sign-in token isn't one Auto accepts.

## What to do

Read the problem's `detail` first. It says what happened to this request.

*   Send the credential as `Authorization: Bearer <key>`: an API key, or the token of a person who signed in.
*   Check that the API key is copied in full and is one the server still accepts.
*   If a sign-in token was refused, the `detail` says why. Sign in again to get a new token.

## Technical details

*   Type: `https://on.auto/problems/unauthenticated`
*   Status: 401
*   Reason: `unauthenticated`

[Responses and errors](https://on.auto/docs/reference/http#responses-and-errors) in the HTTP API reference has the full detail. [Problem types](https://on.auto/problems/) lists every type.

## Sitemap

See the [full documentation and product sitemap](https://on.auto/sitemap.md) for related pages.