42Crunch API Protection vs Arcjet: Side-by-Side Comparison (2026)

42Crunch API Protection: API runtime protection with content validation, threat detection & throttling. built by 42Crunch. Core capabilities include Runtime content validation based on OpenAPI contracts, Positive security model for API protection, OWASP API Security Top 10 threat detection..

Arcjet: Developer-first security SDK for bot detection, rate limiting, and attack protection. built by Arcjet. Core capabilities include Shield WAF for OWASP Top 10 protection, Bot detection and protection, Rate limiting with dynamic quotas..

Both serve the API Security market but differ in approach, feature depth, and target audience.

42Crunch API Protection differentiates with Runtime content validation based on OpenAPI contracts, Positive security model for API protection, OWASP API Security Top 10 threat detection. Arcjet differentiates with Shield WAF for OWASP Top 10 protection, Bot detection and protection, Rate limiting with dynamic quotas.

42Crunch API Protection is developed by 42Crunch. Arcjet is developed by Arcjet. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

42Crunch API Protection and Arcjet serve similar API Security use cases: both are API Security tools, both cover WAF, OWASP. Review the feature comparison above to determine which fits your requirements.