Marqeta and Coinbase Partner on Stablecoin-Backed Cards With Base Settlement

Marqeta and Coinbase have expanded their collaboration to let crypto-native and traditional businesses offer stablecoin-backed payment cards, according to a Marqeta announcement dated October 16, 2026. Coinbase’s role will cover custody of stablecoin balances and conversion between digital assets and fiat. Base will provide the on-chain settlement layer, while Marqeta will provide card issuance and payment processing. The setup is intended for enterprise card programmes, not the immediate launch of a single consumer card, and brings custody, conversion, settlement and card-payment functions together with connections to banking and card-payment rails. Coinbase custody and Base settlement Coinbase will custody stablecoin balances and manage conversion between digital assets and fiat, while Base will provide the on-chain settlement layer, Marqeta said.

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