> For the complete documentation index, see [llms.txt](https://docs.tryterra.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tryterra.co/unified-api/understanding-terra-environments.md).

# Environments

Learn the three Terra environments, testing, staging and production, and the user limit in each.

Every Terra account has three environments. This page covers what each one allows and how to stay within the user limits.

* **Testing**: you'll have access to 50 [users](https://docs.tryterra.co/introduction/core-concepts#users)
* **Staging**: you'll have access to 50 [users](https://docs.tryterra.co/introduction/core-concepts#users)
* **Production**: unlimited

You can configure each environment separately on your [Terra dashboard](https://dashboard.tryterra.co/).

{% prompt description="List your environments and set a default" icon="terminal" openInAIProviders="true" defaultExpanded="full" %}

```markdown
List my Terra environments with how many users each has, and set staging as my default.

Use the Terra CLI: brew install tryterra/tap/terra, or npm install -g @tryterra/cli, then terra login. Run terra docs ask --question "<question>" for anything you need from the Terra docs, and terra <command> --help for usage.
```

{% endprompt %}

## User limits

Testing and staging each have a limit of 50 users. These test users are provided by Terra on top of any plan.

If you reach the user limit, deregister the testing accounts you no longer need using the [https://docs.tryterra.co/reference/health-and-fitness-api/authentication#delete-auth-deauthenticateuser](https://docs.tryterra.co/reference/health-and-fitness-api/authentication#delete-auth-deauthenticateuser "mention") endpoint.

## Rate limits

Terra does not impose any rate limits on the REST API. API requests are generally not necessary unless you are backfilling historical data.

## Next steps

* [Data sources and data types](/unified-api/setting-up-data-sources.md): choose the providers your users can connect.
* [Destinations](/destinations/setting-up-data-destinations.md): choose where Terra sends data.
* [User authentication](/unified-api/authentication-flow.md): open the widget from your app.