Column N.A. launches Solana-default USDC and USDT banking rails with 24/7 fiat conversion
By 8bitcrypto
September 17, 2026
Column N.A., a federally chartered U.S. bank with about $1.77 billion in assets and FDIC membership, launched native USDC and USDT stablecoin banking rails on September 16, 2026, making Solana the default blockchain in its developer API, according to a Solana Compass report summarizing Column’s launch materials. Fintech builders on Column can send, receive, and convert those stablecoins around the clock with no prefunding required, keeping stablecoin balances and bank accounts on the same ledger. For NFT collectors, that is settlement-rail news: dollar-stable mint and bid money can move on Solana banking rails without a weekend wire blackout.
Solana Compass stresses the architecture pitch. Conventional fintech stablecoin stacks often need prefunded wallets, separate custody accounts, and coordination between a fiat bank and a crypto provider. Column says its product sits inside the banking core—not on a third-party crypto custodian layer—so conversion can be instantaneous without float sitting between the bank account and the stablecoin balance. The product page API example, as reprinted by Solana Compass, defaults network=solana for a USDC transfer. Ethereum and other major chains are supported, but Solana leads the documentation.
Conversion works both ways on a 24/7 clock. Incoming USDC or USDT converts to U.S. dollars on receipt so recipients need not hold stablecoins; outgoing dollar balances convert to stablecoin on the way out. Column’s product language, quoted in the report, contrasts Saturday night stablecoin conversion with ACH batch cutoffs and weekend wire blackouts. The same rails sit beside ACH, FedWire, RTP, FedNow, SWIFT, checks, and card networks in one API surface, so a developer already sending ACH can change a parameter to route a payout over USDC on Solana. A stablecoin-backed card product settles Visa or Mastercard authorizations against the live stablecoin balance with no interim float window, per the same launch summary.
Brex and Slash are named as fintechs already building on the stablecoin product, with Brex co-CEO Henrique Dubugras quoted in Column’s launch materials praising speed, flexible accounts, and an API-first model. Ramp, Mercury, and Bilt appear as broader Column clients in the full product launch context rather than as confirmed stablecoin-only users. Column founder William Hockey framed the goal as consolidating multi-vendor stacks into one bank for frontier financial products. Column also claimed tens of billions in annualized volume through the product without disclosing the exact dollar figure or measurement window—treat that as a company claim via Solana Compass, not an audited NFT desk total.
The Solana stablecoin backdrop matches other 8bitcrypto settlement notes. Solana Compass cites RWA.xyz figures of about 888,000 daily stablecoin active addresses on Solana in September 2026, up from about 333,000 a year earlier, and roughly $8.2 billion of USDC circulating supply on Solana out of about $16.3 billion across chains. SoFi Bank N.A.’s SoFiUSD supply tripling on Solana earlier in 2026 is presented as parallel charter-bank behavior. Those ecosystem stats explain why Column’s “Solana as default” API choice matters for NFT bid currency on Magic Eden, Tensor, and OpenSea Solana—not that Column itself is an NFT marketplace.
What Thursday’s file proves is narrow. An FDIC-member national bank shipped same-ledger USDC/USDT rails with Solana defaulted in the API and 24/7 fiat conversion. Named fintechs are already on the rails per launch materials. What it does not prove is cheaper Solana NFT gas, higher CryptoSlam volume, or that every collector will bank through Column. Attribute product facts to Solana Compass’s reading of Column’s September 16 launch; verify balances and KYC terms before treating any bank API as a wallet substitute.
For 8bitcrypto readers on September 17, the clean Stablecoin Settlement line is that Solana NFT traders now sit next to a U.S. bank product that wants dollar-stable transfers to clear like any other Column payout—around the clock, without prefunding theater.
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