Best API Security Software in 2026

API security software addresses different parts of protecting APIs, from discovering them to managing posture and monitoring runtime activity. Compare API discovery and API posture management with runtime protection, sensitive data detection, and specification governance to see which areas are represented for each product. Deployment model can help you consider where a tool fits, and free-plan availability and paid-from pricing offer additional points for weighing access and cost. Wallarm API Security, Akto API Security Platform, and 42Crunch API Security Platform are among the first entries. The 22 products are ranked, so consider their ordering along with the listed security criteria and the needs of your API environment.