Hi Hemasri,
Thanks for reaching out, If you have not already the first step would be to register for API access which can be completed HERE .
Once you've registered and your developer account is created, to gain the API key and secret you will need to log into your my.MYOB and click on the developer's tab. To access the Developers tab in your [my.MYOB] (https://my.myob.com.au/Pages/Default.aspx) account you need to make sure that you have the correct account selected. Once you are logged into the my.MYOB website, in the top right hand side of the screen there is be a drop down menu beside sign out. Make sure that your developer account is selected in this drop-down. Once that is done the Developers tab should appear. From here you need to click on the Register App button and enter in the details relating to your app. [Developer key registration tips](https://apisupport.myob.com/hc/en-us/articles/360001560516-Developer-Key-Registration-TIP).
With your API key and secret, you can begin building your integration to connect Your app + AccountRight. The AccountRight API uses the OAuth 2.0 method to securely provide access to AccountRight company files. Here is the link to our help article which explains the full process of connecting with a company file via the AccountRight API - https://apisupport.myob.com/hc/en-us/articles/360001459455-How-to-Complete-End-User-Authentication-with-OAuth2-0
Building an AccountRight API request: https://apisupport.myob.com/hc/en-us/articles/360000513855-Building-an-AccountRight-API-request
Thanks,
