> ## Documentation Index
> Fetch the complete documentation index at: https://docs.domino.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Project Variables

Project owners or collaborators can add, modify, or delete project level environment variables. These variables are stored securely and can hold sensitive information, such as credentials.

<img src="https://mintcdn.com/dominodatalab-e871cec4/SEsWOYyvlRclZqNC/images/6.0/set-environment-variables.png?fit=max&auto=format&n=SEsWOYyvlRclZqNC&q=85&s=a1522aa29ae7995b7814d5846a2c0498" alt="Set environment variables" width="584" height="266" data-path="images/6.0/set-environment-variables.png" />

1. Open your **Project** and click **Settings**.

2. In the **Environment variables** section, add the following:

   1. **Name**: Enter the variable name. For example, `YOUR_NAME_SHARED_KEY`.

   2. **Value**: Enter a value for the variable. The maximum length for a value is 64K.

3. Click **Set Variable**.

You can send the values exactly as they are without adding escaping characters.

## Next steps

* [Our Best Practices](/cloud/platform-capabilities/core-concepts/compute-environments/manage-compute-environments/1-best-practices-domino-environments) will guide you in setting up and maintaining your Domino environments.

* [Set up user environment variables](/cloud/platform-capabilities/core-concepts/compute-environments/manage-compute-environments/manage-environment-variables/4-setup-user-environment-variables) for each user. The system injects these variables at execution time for any run initiated by that user.

* Learn to [create model variables](/cloud/platform-capabilities/core-concepts/compute-environments/manage-compute-environments/manage-environment-variables/3-create-model-variables) to add, modify, or delete variables for your models.

* The [Default Domino Variables](/cloud/platform-capabilities/core-concepts/compute-environments/manage-compute-environments/manage-environment-variables/5-glossary-default-variables) glossary contains details about variables automatically injected by Domino.