REPP uses HTTP/1.1 protocol (http://tools.ietf.org/html/rfc2616) and Basic Authentication (http://tools.ietf.org/html/rfc2617#section-2) using Secure Transport (https://tools.ietf.org/html/rfc5246) with certificate and key (https://tools.ietf.org/html/rfc5280).
Credentials and certificate are issued by EIS (in an exchange for desired API username, CSR and IP).
To quickly test the API, use curl:
curl -q -k --cert user.crt.pem --key user.key.pem https://TBA/repp/v1/accounts/balance -u username:password
Test API endpoint: https://testepp.internet.ee/repp/v1
Production API endpoint: TBA
Main communication specification through Restful EPP (REPP):
Contact related functions
Domain related functions
Account related functions