help/_articles/miscellaneous/cli-auth-challenges.md

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layout	title	categories	featured	popular	tags
article	CLI Authentication Challenges	miscellaneous	false	false	cli captcha

The August 2021 release of Bitwarden (2021-08-18) introduced Captcha{:target="_blank"} requirements to increase security against bot traffic. On the CLI, Captcha challenges are substituted with authentication challenges that can validated using your account's Personal API Key client_secret.

Get your Personal API Key

To get your Personal API Key:

1. Log in to the Web Vault{:target="_blank"} and select the Settings tab.
2. From the My Account screen, scroll down to the API Key section.
3. Select the View API Key button and enter your Master Password to validate access.
4. From the API Key dialog box, copy the client_secret: value, which is a random string like efrbgT9C6BogEfXi5pZc48XyJjfpR.

Answering Challenges

Depending on your preferences, you can save an environment variable to automatically pass authentication challenges or manually enter your client_secret whenever a challenge is made:

{% callout success %} Aside from using environment variable, any possible challenge is automatically bypassed when using the bw login --apikey method. Learn more. {% endcallout %}

Answer Challenges with an Environment Variable

Authentication challenges will look for a non-empty environment variables BW_CLIENTSECRET before prompting you to enter one manually. Saving this variable with the retrieved client_secret value will allow you to automatically pass authentication challenges. To save this environment variable:

{% icon fa-linux %} {% icon fa-apple %} Bash

export BW_CLIENTSECRET="client_secret"

{% icon fa-windows %} PowerShell

env:BW_CLIENTSECRET="client_secret"

{% callout warning %} If your client_secret is incorrect, you will receive an error. In most cases, this is because you have rotated your API Key since saving the variable. Use the above steps to retrieve the correct value. {% endcallout %}

Answer Challenges Manually

When an authentication challenge is made and no BW_CLIENTSECRET value is found, you will be prompted to manually enter your client_secret value:

{% image cli/cli-captcha-1-markup.png Login Prompt with Auth Challenge %}

{% callout warning %} If your client_secret is incorrect, you will receive an error. In most cases, this is because you have rotated your API Key since saving the variable. Use the above steps to retrieve the correct value. {% endcallout %}