How to test an API in Sandbox - Authorize/Try It Out Feature
Using the Torch API Sandbox is your first step towards developing with USCIS API’s. All USCIS API’s are secured using OAuth 2.0 client Credentials.
How to Get Access Tokens with Client Credentials
As all USCIS Torch API’s are secured with OAuth 2.0 Security authentication, it is important to understand the AuthN + AuthZ handshake to occurs as you participate with the API’s and their flows built on the Torch Platform.