# API Reference
source: https://developer.mastercard.com/fld-suspected-fraud/documentation/api-reference/index.md

Alert: Mastercard will be migrating from Entrust to DigiCert CA certificates, in response to the announcement made by Google and Mozilla to move away from Entrust CA. You are required to switch to DigiCert CA before March 10, 2025 in production to ensure a successful SSL handshake and avoid any service disruption. Refer to the
[Instructions.pdf](https://static.developer.mastercard.com/content/fld-suspected-fraud/uploads/Instructions.pdf) (123KB).

## Environment Domains {#environment-domains}

* Sandbox
* Production
* India-Sandbox
* India-Production

```Sandbox
https://sandbox.api.mastercard.com/
```

```Production
https://api.mastercard.com/
```

```India-Sandbox
https://sandbox.api.mastercard.co.in/
```

```India-Production
https://api.mastercard.in/
```

## APIs {#apis}


API Specification: `https://static.developer.mastercard.com/content/fld-suspected-fraud/swagger/suspected_fraud_api.yaml`

## Next steps {#next-steps}

Now that you have a good understanding of all the services endpoints, proceed to the [Integration and Testing](https://developer.mastercard.com/fld-suspected-fraud/documentation/integration/index.md) section to learn how to integrate and make sure you are ready to begin testing.