get https://apisandbox.paylocity.com/IdentityServer/connect/token/v2/companies//openapi
The company-specific Open API endpoint allows the client to GET an Open API document for the Paylocity API that is customized with company-specific resource schemas. These customized resource schemas define certain properties as enumerations of pre-defined values that correspond to the company's setup with Paylocity Payroll/HR solution. The customized schemas also indicate which properties are required by the company within Paylocity Payroll/HR solution.
To learn more about Open API, click here