API Marketplace Market Size, Share & Industry Analysis The global API marketplace market size was estimated at USD 21.3 billion in 2025 and is projected to reach USD 82.1 billion by 2033, growing at a CAGR of 18.4% from 2026 to 2033. This strong growth trajectory reflects the increasing reliance of organizations on digital ecosystems that enable seamless connectivity between applications, platforms, and services. Enterprises across...