Stripe Tempo Goes Live: AI Agent Payment Rails

Stripe Just Launched Its Own Blockchain — And It Changes Everything for Payment Developers On 18 March 2026, Stripe-backed Tempo went live on mainnet, bringing a payments-optimised blockchain into production alongside a new open standard: the Machine Payments Protocol (MPP). For fintech developers and crypto payment engineers, this is a watershed moment. The company that processes over $1 trillion in annual payment volume is now building its own settlement layer — purpose-built for stablecoins and AI agent transactions. And Stripe is not alone. Circle launched USDC Nanopayments on testnet the same month, enabling gas-free micro-transfers down to $0.000001. The race to become the default payment rail for autonomous AI agents is officially underway. What Is Tempo and Why Does It Matter? Tempo is a payments-focused blockchain co-developed by Stripe and Paradigm. Unlike general-purpose chains optimised for DeFi or NFTs, Tempo is engineered specifically for high-throughput stablecoin settle