ASUSD, issued by the Astera Protocol smart contracts under the governance of Astera tokenholders, is a U.S. dollar (USD) pegged stablecoin that represents one USD of onchain credit sourced entirely from lending demand, liquidity, and collateral on Ethereum [S1][S2].

Each token represents 1 USD of Astera credit collateralized by onchain economic activity, including borrower interest, arbitrage spreads, and protocol liquidity payments, rather than fiat reserves [S2]. Minting flows through Facilitators, chiefly the over-collateralized Astera Lend, where users deposit ETH, wBTC, and blue-chip tokens against safe loan-to-value ratios [S3]. Holders earn no yield unless they stake ASUSD into staked asUSD (asUSDs), which auto-compounds borrower interest at a disclosed 6-35% APR depending on market conditions [S4][S5].

Astera is presented as smart-contract issuance by the protocol rather than by a single named corporate entity, and the documentation identifies only generic operators [S6][S2]. The legal form of the tokenholder claim is economic, representing 1 USD of Astera credit backed by onchain lending demand rather than a deposit, fund interest, or e-money claim [S1][S2]. Access is permissionless via smart contracts, placing sole responsibility for due diligence and tax compliance on the user [S6][S5]. The peg is maintained through economic arbitrage, with borrowers exiting by repaying debt to Astera Lend at 1:1, while staked asUSDs is subject to a 7-day withdrawal cooldown [S7][S4][S5].

ASUSD deploys natively on each network rather than bridging, with independent Facilitators minting onchain on Linea as the primary live network, Ethereum as reserve chain, and Arbitrum and Base as velocity chains [S8][S9]. Cross-chain coordination uses hourly transfer limits and automatic arbitrage to hold parity, and interest rates adjust every block based on market conditions [S2][S9].

<Sources
  retrievedAt="2026-06-22"
  items={[
    { id: "S1", url: "https://docs.astera.fi/" },
    { id: "S2", url: "https://docs.astera.fi/asusd/what-is-asusd.md" },
    { id: "S3", url: "https://docs.astera.fi/asusd/where-asusd-comes-from.md" },
    { id: "S4", url: "https://docs.astera.fi/asusd/yield-generation.md" },
    { id: "S5", url: "https://docs.astera.fi/llms-full.txt" },
    { id: "S6", url: "https://docs.astera.fi/security-and-compliance/legal" },
    { id: "S7", url: "https://docs.astera.fi/asusd/how-asusd-balances-to-usd1.md" },
    { id: "S8", url: "https://docs.astera.fi/core-architecture/astera-ethereums-native-credit-layer" },
    { id: "S9", url: "https://docs.astera.fi/asusd/multi-chain-architecture.md" },
  ]}
/>


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Astera USD (ASUSD) is a U.S. dollar stablecoin issued by Astera.

ASUSD has been issued on Linea as an ERC-20 token since July 2025.

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