Reporting: sourced factual coverage reviewed by the editorial desk.
Circle said on October 23 that Gateway now supports its euro-denominated EURC and wrapped-bitcoin token cirBTC alongside USDC. The change extends a system designed to let applications draw on a separate unified balance for each asset across supported networks, rather than prefunding every destination.
For readers, the practical distinction is between moving the same asset across networks and exchanging one asset for another. A unified EURC balance is still EURC; the announcement does not turn euros, dollars and bitcoin into a single interchangeable holding. cirBTC is Circle-issued wrapped bitcoin, rather than native bitcoin on the Bitcoin network.
Circle lists cirBTC support on Arc and Ethereum, and EURC support on Arc, Avalanche, Base, Ethereum, Solana and World Chain. It quotes crosschain access in less than 500 milliseconds after a deposit finalizes. That is a qualified company estimate, not a promise that an initial deposit completes in half a second. RailsRecord has not benchmarked the service.
Costs and documentation matter
Circle says Gateway fees for the two newly supported assets are waived on Arc at launch and are one basis point elsewhere. One basis point equals 0.01%. That Gateway charge should not be mistaken for every cost an application may encounter.
The company also says its Nanopayments system extends to the new assets. It aggregates payments offchain before settling batches onchain: removing a gas charge for each individual payment does not remove the gas cost of batch settlement.
There is a material documentation mismatch. The Gateway supported-blockchains page reviewed for this report still describes USDC, shows dashes in Solana's mainnet and testnet fields, and explicitly excludes Solana from nanopayments. That conflicts with a broad reading of the announcement's statement about nanopayments wherever each asset is supported. Builders should verify the exact asset, chain and workflow before treating the announcement as deployment-ready instructions. This report does not establish EURC nanopayments availability on Solana.
The documentation also describes a seven-day permissionless withdrawal option. That fallback is different from the normal rapid transfer path. The announcement's Unified Balance Kit disclosure similarly warns that permissionless withdrawals have a seven-day delay.
What the Solana address means
A separate October 23 Circle notice says it deployed a pre-mint address for Gateway EURC on Solana. Circle explains that tokens held at these internal addresses are excluded from circulating supply until authorized release to a user's wallet. The address is operational infrastructure, not a deposit destination for customers. Circle warns that sending EURC to it would cause a loss of funds.
Taken together, the releases announce additional software capabilities, rather than prove new customer adoption, lower realized business costs or an increase in token demand. The unresolved documentation details make integration checks especially important.
The illustration is an original AI-assisted conceptual image of separate asset balances and transfer paths, not a photograph, product interface or depiction of an observed transaction.
Sources & evidence
Circle — Gateway support for cirBTC and EURC, October 23, 2026 ↗
Circle — EURC Solana pre-mint address, October 23, 2026 ↗
Circle documentation — Gateway overview ↗
Circle documentation — supported blockchains ↗
Visual: original AI-generated conceptual illustration, created for this headline. It does not document an actual event.
Author disclosure
Prepared with AI assistance by reviewing Circle's dated announcements and technical documentation, comparing capability statements and distinguishing company claims from independently demonstrated results. No interviews, transaction testing or independent performance audit were conducted. The accompanying image is an original AI-assisted conceptual illustration. RailsRecord has not verified the publisher owner's personal holdings or other material interests; no assertion of an absence of such interests is made.
Corrections
Identify this article and the disputed claim in a correction request to corrections@railsrecord.com ↗. The publisher reviews supporting primary evidence.
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