Getting Started with REST {#platform}
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25.08.01
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![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added information about username and password requirements for creating a Sandbox account. See these topics:

* JWT Messaging: [Step 1: Sign Up for a Sandbox Account](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-jwt-message-intro/restgs-register.md "")
* HTTP Signature Messaging: [Step 1: Sign Up for a Sandbox Account](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-http-message-intro/restgs-register-http.md "")