To integrate with ITCTXT OpenAPIs, developers must follow the OAuth 2.0 authorization protocol. This guide outlines the necessary steps, tools, and parameters required to authenticate, connect, and test ITCTXT APIs using platforms like Postman.To be able to use ITCTXT OpenAPIs you need to have ITCTXT login credentials.Once you login to the ITCTXT application (ITCTXT), navigate to ‘Integrations > API Connect’ as shown in below image.OAuth2.0 specification needs few parameters to be sent by client. Below are the names of the parameters and corresponding values for ITCTXT that need to be sent to use ITCTXT OpenAPIs:Scope : For below API functions respective scopes should be addedYou should enter the callback URL and then click connect to get the Client ID, Client Secret and API Key to use for OAuth2.0 calls to APIs. Please see below image.If we use postman to test ITCTXT OpenAPIs then we need to use the postman callback URL in the Callback URLs input box as shown in above image and click connect to get the other required auth params for OAuth calls.The other required params for OAuth calls are :Client ID : [Is unique to client. Once user clicks connect button this value is shown]Client Secret : [Is unique to client. Once user clicks connect button this value is shown]API Key : [Is unique to client. Once user clicks connect button this value is shown] Modified at 2026-01-27 16:33:00