Xion is a Layer 1 blockchain developed by Burnt that has launched a public testnet built around using USDC (USD Coin) as the primary transactional currency and gas token, rather than a volatile native coin. The chain is constructed with the Cosmos SDK and IBC stack and uses a proof-of-stake consensus model, but redesigns the user experience through modular account abstraction and “walletless” interactions aimed at making Web3 applications feel similar to conventional Web2 apps. Developers and users can now access the open testnet, obtain testnet USDC via Circle’s Noble-based faucet, and start building and testing applications that denominate balances and fees directly in dollars. This architecture is notable because Xion is positioning itself as the first L1 to integrate USDC across its full infrastructure stack and to adopt the stablecoin as its primary transaction currency, backed by a strategic investment from Circle Ventures. By making fees and in-app values stable and fiat-like, the project aims to remove price volatility and gas complexity as adoption barriers, while still routing those USDC-denominated fees back into a native staking token for validator incentives. The public testnet marks a key step in validating this design with external developers and ecosystem partners, as Xion tests whether a stablecoin-centric, account‑abstracted blockchain can support mainstream consumer-facing applications at scale.

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