Fiserv has introduced INDX, a real-time cash settlement platform designed to help digital asset companies store and move US dollars.
INDX allows digital asset companies to use a single custodial account and access up to $25m of FDIC insurance. Fiserv positions the platform as an option for firms that want to settle in fiat US dollars without routing funds outside traditional banking systems or moving funds on-chain.
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The platform distributes customer funds across the Fiserv Deposit Network, which Fiserv described as an ecosystem of more than 1,100 insured US-based financial institutions. This structure is intended to support real-time settlement and flexible operating hours.
Fiserv added that diversified deposit programmes managed by INDX will create a new channel of cost‑efficient, stable, and granular funding for community banks and credit unions in the Fiserv Deposit Network.
Fiserv co-president Takis Georgakopoulos said: “INDX advances the strategic vision behind bringing StoneCastle into the Fiserv ecosystem, combining our unique position at the intersection of banking and commerce with proven insured-deposit funding solutions to create differentiated value for our clients.
“For the first time, digital asset companies have a settlement engine to move real fiat US dollars in a manner that is faster, more secure, scalable, and fully programmable.”
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By GlobalDataFiserv said INDX is designed for institutional traders and outlined several platform capabilities. These include a custodial account offered through an affiliated US-based trust company, as well as real-time transfers that the company said can occur in milliseconds with finality and instant USD availability.
Fiserv linked the launch to its acquisition of StoneCastle, stating that the December 2025 deal supports its deposit funding solutions strategy.
In September last year, Fiserv acquired CardFree platform, which enables merchants to offer ordering, payments, and loyalty solutions.
