It has been observed that the present architecture, which routes inter-SSP communications through a centralized STP Hub, results in higher latency, additional transmission costs, operational inefficiencies, concentration risk, and potential single point of failure. The paper proposes replacing the centralized STP Hub with a decentralized API- based connectivity framework between STP Service Providers (SSPs). The SSPs would communicate directly through standardized APIs while ensuring authenticity, integrity, and non-repudiation of messages. The paper also proposes optional API-based communication between STP users serviced by the same SSP to reduce manual intervention. The feedback/comments from stakeholders are invited.
