Lightspark CEO Launches Grid Global Accounts at Bitcoin 2026 Las Vegas

Lightspark CEO David Marcus unveiled Grid Global Accounts at Bitcoin 2026 Las Vegas — a dollar-denominated payment layer built on Bitcoin that will let platforms offer in-wallet dollars, stablecoins and native bitcoin, and spend at Visa merchants. Lightspark is becoming a Visa principal member, giving Grid holders access to 175 million merchants and real-time reach across 65 countries (with a target of 100 Visa markets by year-end 2026). The product supports interoperability (e.g., USDC on Solana, USDT on Optimism) and introduces AI agent delegation to automate payments. Market impact: the launch could accelerate stablecoin and Bitcoin-on-rails payments, broaden merchant on-ramps, and support fintech revenue capture (FX, interchange, custody), a net positive for Bitcoin adoption and payments infrastructure.