# API Reference
source: https://developer.mastercard.com/mastercom-extended/documentation/api-reference/index.md

## Environment Domains {#environment-domains}

Environment domains available :
* Sandbox-Global
* Production-Global
* Sandbox-India
* Production-India

```Sandbox-Global
https://sandbox.dispute.mastercard.com/mastercom-extended
```

```Production-Global
https://dispute.mastercard.com/mastercom-extended
```

```Sandbox-India
https://sandbox.dispute.mastercard.co.in/mastercom-extended
```

```Production-India
https://dispute.mastercard.co.in/mastercom-extended
```

Alert: Customers in India can manage their domestic (Single and Dual Message) transaction disputes and cross-border (Single Message) transaction disputes using the Mastercom Extended API. Refer to [AP 12116.1 Mastercom Extended for Issuers and Acquirers in India](https://trc-techresource.mastercard.com/r/bundle/m_an12116_en-us/page/d/en-US/) for more information.   

Global customers will continue to use Mastercom Extended API to manage Single Message transaction disputes.

|                                                                            API Reference                                                                             |                                           Description                                            |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------|
| [Dispute Processing Specification](https://developer.mastercard.com/mastercom-extended/documentation/api-reference/dispute-processing/index.md)                      | Endpoints used to manage Single Message System and Dual Message (India customers only) disputes. |
| [Transactions, Claims, Documents, and Fraud Specification](https://developer.mastercard.com/mastercom-extended/documentation/api-reference/claims-docs-txn/index.md) | Endpoints used to search for a transaction, manage claims, manage documents, and submit fraud.   |
| [Queues and Reports Specification](https://developer.mastercard.com/mastercom-extended/documentation/api-reference/queues-reports/index.md)                          | Endpoints used to manage queues and reports.                                                     |
| [Send Payment Dispute Processing Specification](https://developer.mastercard.com/mastercom-extended/documentation/api-reference/send-dispute-processing/index.md)    | Endpoints used to manage Send Payment disputes.                                                  |