Аннотация:This paper relates to telecommunication standards and describes the current status of open Application Programming Interface for M2M applications as well as proposes some changes and extensions. The European Telecommunications Standards Institute is going to provide open standards for the rapidly growing M2M market. An open specification, presented as an Open API, provides applications with a rich framework of core network capabilities upon which to build services while encapsulating the underlying communication protocols. Services may be replicated and ported between different execution environments and hardware platforms. We would like to discuss the possible extensions for ETSI proposals and describe the add-ons that, by our opinion, let keep telecom development inline with the modern approaches in the web development domain.