The Securities and Exchange Board of India (SEBI) has unveiled a significant proposal to modernize India's capital market infrastructure, targeting a complete overhaul of its Straight Through Processing (STP) framework. The plan involves eliminating the existing centralized STP Hub, which has been operational for two decades, and replacing it with a direct Application Programming Interface (API)-based connectivity model.
This strategic shift is primarily aimed at reducing latency, lowering operational costs, and enhancing overall efficiency for market participants. STP is an automated mechanism crucial for the end-to-end processing of financial transactions, including Electronic Contract Notes (ECNs) and trade confirmations, without manual intervention.
Addressing Systemic Bottlenecks and Risks
SEBI's current STP framework, established through circulars in 2004, routes all inter-service provider communications through a centralized hub. The regulator has identified several critical issues with this architecture, including additional processing steps, increased message transmission times, and higher charges due to hub usage.
Furthermore, an analysis of transaction data from April to December 2025 revealed a significant concentration risk, with nearly 95–99% of STP traffic routed through a single STP Service Provider (SSP). SEBI warned that this over-reliance on one dominant provider and the centralized hub structure creates a potential single point of failure for the entire system, posing a systemic risk to India's financial markets.
The Proposed API-Based Solution
To mitigate these risks and improve performance, SEBI proposes a decentralized API-based model. Under this new framework, SSPs will communicate directly with each other using standardized interfaces and protocols. This means that Electronic Contract Notes uploaded by brokers, for instance, would move directly between service providers, bypassing the centralized intermediary entirely.
The regulator anticipates that this revised system will involve fewer message exchanges, leading to improved speed, greater scalability, and enhanced reliability. Crucially, SEBI has stated that the proposed changes will not necessitate any system modifications for end-users such such as stock brokers, custodians, institutional investors, or fund houses, ensuring a smooth transition.
Benefits and Next Steps
Beyond technical improvements, SEBI believes the API framework will foster greater competition by encouraging more SSPs to participate in the market, thereby reducing overdependence on a few large players. An optional API-based message exchange mechanism is also proposed for users operating under the same SSP, aiming to minimize manual upload/download processes and reduce human errors.
The Industry Standards Forum (ISF) will play a pivotal role in formulating the operational procedures and messaging standards for the new system, working in close consultation with SEBI. The regulator has invited public comments on this significant proposal until June 9, 2026, as it moves to modernize a critical component of India's capital market infrastructure.