# Environments
source: https://developer.mastercard.com/ob-accept-payments/documentation/developer-support/api-basics/environments/index.md

## Environment Domains {#environment-domains}

Early access environment connects to a test bank, intended to assist with the initial integration for new customers. The primary purpose is to enable testing the structure of the request and response messages.

Depending on the region and selected scheme, the test banks may also offer additional functionality, like generic UI flows that simulate Strong Customer Authentication (SCA) with the banks or some advanced scenarios, but are not intended to replicate a full implementation on the bank side. Refer to [Testing](https://developer.mastercard.com/ob-accept-payments/documentation/developer-support/testing/index.md) for additional details.
Note: Sandbox data is not guaranteed to be persistent over time, as we delete data periodically.

The Production environment provides access to real bank data. For details on how to gain production access, refer to [Production](https://developer.mastercard.com/ob-accept-payments/documentation/developer-support/production/index.md).
* Sandbox
* Production

```Sandbox
https://mtf.api.openbanking.mastercard.eu/accept-payments
```

```Production
https://api.openbanking.mastercard.eu/accept-payments
```