Fiserv launched INDX on 12 February 2026, a real-time cash settlement platform that enables digital asset companies to move US dollars in milliseconds on a 24/7/365 basis.
Architecture and FDIC Coverage
INDX is built on infrastructure acquired through Fiserv's purchase of StoneCastle, which closed in December 2025. The platform distributes funds across more than 1,100 FDIC-insured US financial institutions via the Fiserv Deposit Network, providing up to $25 million in FDIC insurance per custodial account.
Strategic Positioning
Fiserv Co-President Takis Georgakopoulos described INDX as enabling digital asset companies to "move real fiat US dollars" in a manner that is "faster, more secure, scalable, and fully programmable."
INDX connects to Fiserv's broader FIUSD stablecoin initiative, linking traditional banking settlement infrastructure with digital asset rails.
Industry Context
The launch follows a series of moves by established payment companies into digital asset settlement infrastructure. Visa expanded USDC stablecoin settlement to US banks in 2025. Mastercard partnered with SoFi on bank-issued stablecoin settlement in early 2026. Stripe and Paradigm launched the Tempo blockchain for stablecoin payment settlement in 2025. INDX takes a different approach by settling in fiat USD through the existing FDIC-insured banking network rather than through stablecoins or blockchain-native tokens.