If you're looking to start a crypto company in 2026, here are some themes to explore: 1. Stablecoin & deposits infra → deposit token custody, CeFi on DeFi rails, better peg design, transparent reserves, oracle redundancy 2. Micropayment agents → x402-compatible bots, agent dashboards & wallets, stablecoin streaming APIs for machine commerce 3. Lean tooling → lightweight clients, post-quantum crypto, and zkstacks aligned with Lean 4 Interop rollup kits → developer tooling for cross-rollup apps and liquidity routers