Ans: Authentication methods can vary. It's common to use API keys or OAuth tokens. For encrypted version header_secrets and pass_key will be used for authentication. For non-encrypted version client_id and client_secret will be used for authentication.

Ans: Rate limits define the number of API requests allowed within a specific timeframe. We don't have any rate limits for the APIs.

Ans: Errors can result from various issues such as invalid input, authentication failures, or server problems. Ensure your requests are correctly formatted and authenticated. For persistent issues, consider reaching out to iServeU's support team.

Ans: The update frequency can impact the accuracy of the information retrieved.

Ans: Yes, there is sandbox environment available.

Ans: This is mentioned in the API document failure cases. Kindly refer to that.

Ans: No, this cannot be used for e-KYC purposes. It is an alternative method to verify the customer's Aadhaar details using an OTP received by the customer. This process is commonly referred to as consent-based Aadhaar verification.