The National Stock Exchange (NSE) on June 17, 2026, issued an update regarding the API Facility in NMASS-Margins-FO.
The following has been stated:-
•NSE Clearing has added new API endpoints to the NMASS Margins-FO module and released updated API specifications along with an RSA Encryption/Decryption Integration Guide.
•A test environment is now available for members to validate access to margin-related data through APIs.
•Members wishing to test the facility must email with the subject “Test API Facility in NMASS-Margins-FO”.
•The email should include member details, IP address, public key certificate (.pem), registered email address, and contact number.
[Circular No: 073/2026]
