Payments — taking and paying out money — remains a fragmented and complex area for merchants, marketplaces and others that do business with multiple parties online. As it grows — from $1.5 trillion today to $2.9 trillion by 2030 — that complexity will grow, too. Today, a startup is coming out of stealth with a … Continue reading Payrails emerges from stealth with $6.4M led by a16z to build the OS for payments