DecisionTelecom API Overview
Explore our full API reference documentation and easily integrate SMS, Viber, WhatsApp, chat and voice capabilities into your website or application using DecisionTelecom APIs.
HTTPS is chosen as the transport layer of the DecisionTelecom API for the described protocol.
The access key is used as the basis for the authorization of the API. Request and response payloads are formatted as JSON (we also provide as alternative GET requests), using UTF-8 encoding and URL-encoded values.