Fiserv Launches Real-Time Cash Settlement Platform for Digital Asset Firms

Fiserv, Inc., a leading global payments and financial technology provider, has launched INDX, a 24/7 real-time USD cash settlement platform designed specifically for digital asset companies — enabling secure, instant and programmatic transfers of U.S. dollars off-chain through traditional banking infrastructure. The platform allows digital asset firms to store and settle cash instantly in milliseconds without routing funds outside of regulated banking systems or moving them on-chain.

With INDX, digital asset companies can open a single custodial account linked to an affiliated U.S.-based trust company and benefit from up to $25 million in FDIC insurance, which is significantly higher than standard account limits. The platform distributes client funds across the Fiserv Deposit Network, comprising more than 1,100 insured U.S. financial institutions, ensuring both security and liquidity.

The launch comes as part of Fiserv’s broader strategic expansion into digital asset infrastructure following the acquisition of StoneCastle Cash Management in December 2025 — positioning INDX as a bridge between traditional finance and the rapidly evolving digital asset ecosystem.

Key Highlights

• Real-time settlement: INDX supports 24x7x365 settlement of U.S. dollars with milliseconds-latency finality.
• Single custodial account: Digital asset firms can use one custodial account with up to $25 million FDIC insurance via an affiliated trust entity.
• Off-chain settlement: Funds are kept off-blockchain within traditional banking systems while delivering real-time transfer speed.
• Broad network: Funds are distributed across the Fiserv Deposit Network of 1,100+ insured U.S. banks and credit unions, expanding deposit sources for community banks.
• Programmable APIs: Institutional-grade APIs allow programmable, automated integrations for settlement workflows.
• Strategic foundation: The platform builds on Fiserv’s acquisition of StoneCastle Cash Management and its growing digital asset strategy.

What INDX Is and Why It Matters

Bridging Traditional Finance and Digital Assets

While blockchain-based token settlement promises speed and transparency, many digital asset companies continue to face friction in fiat settlement due to reliance on legacy payment rails that operate only during business hours or slow bank wire transfers. INDX addresses this operational bottleneck by enabling real-time fiat settlement directly through traditional banking networks — with programmable features and high availability typically associated with on-chain systems.

The off-chain settlement model means funds remain within secure, insured banking channels, offering regulatory comfort and institutional familiarity while delivering near-instant transaction finality — a combination many institutional traders and regulated firms seek when managing large volumes of cash.

Liquidity and Stability for Digital Asset Firms

By pooling client deposits across a vast network of insured financial institutions, INDX also creates new liquidity channels and provides digital asset firms with stable, cost-efficient funding sources. For traditional community banks and credit unions, the platform attracts new deposit flows from institutional clients, helping diversify funding bases and optimize balance sheets.

Strategic and Industry Impacts

Enhancing Fiat Rails for Crypto Settlement

INDX represents a convergence of traditional banking settlement rails and digital asset infrastructure — enabling digital asset firms to operate with the fast liquidity and programmable flexibility they need while remaining within regulated frameworks. This could accelerate institutional participation in digital asset markets and improve integration between fiat and digital ecosystems.

24/7 Market Support

The platform’s round-the-clock settlement functionality aligns with the always-on nature of digital asset trading and global markets — a stark contrast to legacy banking systems that are typically constrained by business hours and settlement windows.

Regulatory and Trust Considerations

With FDIC insurance eligibility and funds managed through regulated deposit networks, INDX aims to balance speed, security, and institutional confidence — essential for firms handling large volumes of USD in a dynamic asset environment.

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