Which chain hosts KlarnaUSD testnet?

TLDR

KlarnaUSDs testnet runs on the Tempo blockchain. See the confirmation in a recent report that it is live on Tempos testnet on the Tempo network.

1. Tempo is a payments-focused layer 1 co-developed by Stripe and Paradigm, built for fast, low-fee settlement (context).
2. A mainnet rollout is targeted for 2026, after testnet validation (timeline).
3. Issuance uses Bridges Open Issuance infrastructure from Stripe for minting and operations (infrastructure).

Deep Dive

1. Tempo Testnet

KlarnaUSD (a USD-pegged stablecoin) is currently active on the Tempo testnet. Multiple outlets note it is live on Tempos testnet, which is the key pointer to where developers would expect early integrations and tooling to appear as Tempo resources open up to testers (project coverage).

2. Why Tempo

Tempo is positioned as a payment-first chain with low costs and high throughput, and it is co-developed by Stripe and Paradigm. This makes it a logical venue for a corporate stablecoin focused on settlements and cross-border flows, rather than a trading-driven design (background).

3. Roadmap and Issuance

Reports point to a planned mainnet launch in 2026, with initial usage focused on internal flows and operational testing before broader merchant or consumer rollout. KlarnaUSD leverages Bridges Open Issuance (a Stripe subsidiary) for minting, reserve handling, and compliance operations, aligning with a payment-infrastructure approach rather than a do-it-yourself crypto stack (timeline and operations).

Conclusion

KlarnaUSDs testnet is hosted on Tempo, a payments-oriented chain backed by Stripe and Paradigm. For hands-on testing, track Tempo testnet resources and updates, with broader access anticipated around the 2026 mainnet window.