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Getting Started with REST {#platform}
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25.01.02
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![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added testing information in an Important note in the Secure Communication Requirements section. See [Overview of REST](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-intro.md "").  
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added information about the purposes of a sandbox account for the JSON web token and HTTP signature messaging implementations. See [Sign Up for a Sandbox Account for JSON Web Tokens](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-jwt-message-intro/restgs-register.md "") and [Sign Up for a Sandbox Account for HTTP signature messaging](https://developer.cybersource.com/docs/cybs/en-us/platform/developer/all/rest/rest-getting-started/restgs-http-message-intro/restgs-register-http.md "").  
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