# CSP To Mastercard
source: https://developer.mastercard.com/account-to-account-commerce-for-csp/documentation/api-reference/csp-to-mastercard/index.md

Please open the respective service to view the specifications.

## Environment Domains {#environment-domains}

* MTF
* Production

```MTF
https://mtf.services.mastercard.co.in/zapp/pbarfp/csp/
```

```Production
https://services.mastercard.co.in/zapp/pbarfp/csp/
```

To form the full endpoint URL, combine the appropriate domain portion (shown above) with the path portion shown by the OpenAPI specification (see below).

API Specification: `https://static.developer.mastercard.com/content/account-to-account-commerce-for-csp/swagger/A2A_CSP_To_Mastercard.yaml`

## Environment Domains {#environment-domains}

* MTF
* Production

```MTF
https://mtf.services.mastercard.co.in/zapp/ies/csp/
```

```Production
https://services.mastercard.co.in/zapp/ies/csp/
```

To form the full endpoint URL, combine the appropriate domain portion (shown above) with the path portion shown by the OpenAPI specification (see below).

API Specification: `https://static.developer.mastercard.com/content/account-to-account-commerce-for-csp/swagger/PBARFP_CSP_To_Mastercard_AR.yaml`

## Response Codes, Error Codes and Troubleshooting {#response-codes-error-codes-and-troubleshooting}

For information about Business Rules for each API and the HTTP response codes that may be returned for your API requests, see [Codes and Formats](https://developer.mastercard.com/account-to-account-commerce-for-csp/documentation/code-and-formats/index.md).