# Environments
source: https://developer.mastercard.com/open-finance-europe/documentation/unlicensed/insights/api-basics/environments/index.md

## Environment Domains {#environment-domains}

Default access is provided to the Sandbox environment when you create an Fintech application in the [Developer Portal](https://devportal.openbanking.mastercard.com). Test banks are provided in this environment, which provide the same features as live banks without exposing real bank data.
Note: The data in the sandbox is not guaranteed to be persistent over time as data is periodically deleted.

The Production environment provides access to real bank data. For details on how to gain production access, refer to [Production](https://developer.mastercard.com/open-finance-europe/documentation/unlicensed/insights/production/accessing-prod-data/index.md).
* Sandbox
* Production

```Sandbox
https://insights.sandbox.aiia.eu/
```

```Production
https://insights.aiia.eu/
```