Visa and Stripe join Tempo

Visa and Stripe have joined Tempo as validators, putting two of the biggest payments companies inside a blockchain network built for stablecoin settlement. (coindesk.com) Visa said on April 14 that it launched a validator node on Tempo and is operating it in-house after six months of work with Tempo’s engineering team. Zodia Custody, a digital-asset custodian backed by Standard Chartered, is also joining as a validator. (investor.visa.com) Validators are the machines that check transactions and help keep a blockchain honest, like bookkeepers agreeing on the same ledger before money moves. In this case, Tempo says the network is designed for real-time payments and “agentic commerce,” its term for software that can initiate payments automatically. (investor.visa.com) Stablecoins are digital tokens meant to hold a steady price, usually by tracking a government currency such as the United States dollar. Stripe markets them to businesses as a way to accept payments, make payouts, and move money across borders with lower foreign-exchange friction. (stripe.com 1) (stripe.com 2) Tempo is part of Stripe’s wider push into crypto payments. Stripe added Tempo as a supported network in its crypto payments tools on March 25, 2026, weeks after CoinDesk reported that Tempo’s mainnet had gone live with a Machine Payments Protocol for artificial-intelligence agents. (docs.stripe.com) (coindesk.com) The project itself is new. Stripe and Paradigm unveiled Tempo in September 2025 as a payments-focused blockchain, and public test coverage in December said Mastercard, UBS, Klarna, and Kalshi were among early institutional partners. (coindesk.com 1) (coindesk.com 2) Visa has been building around stablecoins outside Tempo too. Stripe said in 2025 that its Bridge unit partnered with Visa on card issuing tied to stablecoin balances in multiple countries. (stripe.com) The immediate change is not that consumers will swipe a new card this week. The change is that companies that already move money at scale are now helping run the rails Tempo wants to use for stablecoin payments. (investor.visa.com)