Hi,
Please find the details below:
Base URL: https://p6pr5vasaj.execute-api.us-east-1.amazonaws.com/UAT/partner/
Complete URL(s):
NIRA Check and Create Application API:
https://p6pr5vasaj.execute-api.us-east-1.amazonaws.com/UAT/partner/createapplication
HTTP Header Parameters:
Content-Type : application/json
x-api-key : khKJ5SBDlH3yQQnDGhUmC6gD4oziu7nJ993ywUwm
HTTP Method:
POST
Request and response:
"partnerIdentifier" to be used in the request JSON: DIGI6964
"uuid"
We will need the partner to send us a UUID, which will be used in deduping multiple requests sent by a user. UUID should be unique to each customer who is requesting an eligibility request via the partner's platform. 
limit: 5 to 36 characters.
The rest is as per "NIRA Partner API Integration" attached/sent.
PFA the API integration document.

For Production, we'll need the following, for whitelisting purposes:
List of IP Addresses

In case of any queries, please reach out to us.