The first will provide information on what's needed for authentication to access Workfront API endpoints. The second is the API Explorer which are all the objects (like projects, tasks, etc.) that can be accessed via the API and the parameters available underneath them.
@KarthickVe just checking in! Were you able to get this resolved? If one of the replies above helped—whether it completely solved the issue or simply pointed you in the right direction—marking it as accepted can make it much easier for others with the same question to find a solution. And if you found a different way to fix it, sharing your approach would be a great contribution to the community. Your follow-up not only helps close the loop but also ensures others benefit from your experience. Thanks so much for being part of the conversation!