Stripe and Paradigm’s Tempo Opens Public Testnet, Adds UBS, Mastercard and More
The network targets instant, predictable stablecoin payments with a fixed one-tenth-cent fee paid in USDC or USDT.
Overview
- Tempo’s public testnet went live on December 9, enabling any company to build and test stablecoin payment applications and integrations.
- New partners include UBS, Cross River Bank, Kalshi, Mastercard and Klarna, joining earlier testers such as Deutsche Bank, Visa, Shopify, OpenAI and Nubank.
- Tempo’s payments-first architecture separates dedicated payment lanes to avoid congestion and aims for fast finality with consistent settlement times.
- Transactions cost roughly $0.001 payable in dollar-denominated stablecoins, eliminating a volatile gas token and offering an alternative to percentage-based card fees.
- The network accepts any dollar stablecoin, including USDC and USDT, and institutions such as Anthropic, Nubank and Coastal Bank are validating real payment workloads.