Best API Security Software in 2026

API security products address several parts of protecting APIs, from finding what is exposed to monitoring activity at runtime. The ranked options include Wallarm API Security, Akto API Security Platform, and 42Crunch API Security Platform. Compare API discovery and API posture management with runtime protection and sensitive data detection to see which areas each product covers. Specification governance is another criterion, while deployment model, free-plan availability, and paid-from pricing help frame fit and cost. The ranking includes 22 products; use the order alongside these comparisons to focus on security capabilities that match your API environment.