USDC on Stellar: Why Circle Chose This Network

Circle, the company behind USD Coin ($USDC), has made Stellar one of its core blockchain deployments for the world's largest regulated stablecoin. The decision comes down to three concrete factors: Stellar's sub-5-second transaction finality, fees that cost a fraction of a cent, and a network built from the ground up for cross-border payments rather than retrofitted for them later. In other words, the chain was designed for the job before the job showed up.

What Is Stellar, and Why Does It Matter for Stablecoins? Stellar is a public blockchain co-founded by Jed McCaleb in 2014. It was built with one primary goal: moving value across borders quickly and cheaply, with a particular focus on users who lack access to traditional banking. Unlike Bitcoin or Ethereum, Stellar does not use proof-of-work or proof-of-stake to confirm transactions. Instead, it runs on the Stellar Consensus Protocol (SCP), a type of Federated Byzantine Agreement (FBA). In plain terms, each node on the network selects a set of other nodes it trusts, and a transaction is confirmed once enough of those trusted nodes agree on its validity. There is no mining, no energy-intensive computation, and no block reward system — just fast, deterministic settlement. The validators are essentially agreeing to agree, which is more productive than it sounds.

Key network characteristics as of 2025/2026: transaction finality in 3–5 seconds, a base transaction fee of 0.00001 XLM (fractions of a cent), 99.99% uptime over the network's operational history, and Protocol 23, rolled out in late 2025, which introduced parallel transaction processing and pushed theoretical throughput toward 5,000 transactions per second. These specs make Stellar a natural fit for a stablecoin meant to function like cash.

How Did $USDC Come to Stellar? Circle first announced Stellar as an official $USDC chain in late 2020, through the Centre Consortium — the joint governance body it operated with Coinbase. Full API and business account support rolled out by Q1 2021. In August 2023, Circle and Coinbase dissolved the Centre Consortium entirely, and Circle took over all $USDC governance and operations in-house. The Consortium recognized Stellar's strong track record in payment corridors, particularly in Latin America and Africa, and its clearly payment-oriented developer community.

Minting $USDC natively on Stellar required custom engineering. Stellar's default asset model only allows the original account that created an asset to issue more of it. That design did not work for $USDC, which requires multiple authorized minting entities to maintain its full-reserve model — one dollar held in reserve for every one $USDC in circulation. Circle had to build around Stellar's native architecture rather than simply plug in. A reasonable tradeoff for a network that actually closes in seconds.

As of mid-2026, approximately $180.7 million in $USDC is in active circulation on Stellar, accounting for roughly 0.23% of total $USDC supply across all blockchains. Modest by aggregate standards, but the integration is the point, not the market share.

Why Did Circle Add CCTP to Stellar? The next major step came on May 19, 2026, when Circle activated its Cross-Chain Transfer Protocol (CCTP) on Stellar. The Stellar Development Foundation announced the integration, which connects Stellar to 23 other blockchains including Ethereum, Solana, Avalanche, Arbitrum, and Base.

CCTP uses a burn-and-mint mechanism. When a user moves $USDC from Stellar to Ethereum, for example, the Stellar-side $USDC is permanently destroyed, Circle's off-chain Iris attestation service cryptographically signs the burn event, and a matching amount of fresh, native $USDC is minted on Ethereum. The total $USDC supply across all chains stays constant. There is no wrapped token, no liquidity pool held by a third party, and no bridge vault that could be targeted by an attacker — which, given recent bridge history, is a meaningful feature.

Jonathan Lim, Principal Product Manager at Circle, explained: "Traditional cross-chain flows are often riddled with additional trust assumptions, block-finality delays, and liquidity fragmentation. CCTP V2 mitigates these issues, and paves the way for improved cross-chain $USDC liquidity, enhanced cross-chain UX, and institutional-grade cross-chain infrastructure."

Cross-chain transfers through CCTP on fast-fin