Aikido Zen vs @fastify/helmet: Side-by-Side Comparison (2026)

Aikido Zen: Runtime application security library blocking zero-days & OWASP Top 10 attacks. built by Aikido Security. Core capabilities include Real-time blocking of SQL and NoSQL injection attacks, Command injection prevention, Path traversal attack protection..

@fastify/helmet: A Fastify plugin that implements HTTP security headers through a wrapper around the helmet library to protect web applications from common vulnerabilities..

Both serve the Runtime Application Self-Protection market but differ in approach, feature depth, and target audience.

Aikido Zen is developed by Aikido Security. @fastify/helmet is open-source with 453 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Aikido Zen and @fastify/helmet serve similar Runtime Application Self-Protection use cases: both are Runtime Application Self-Protection tools, both cover Nodejs. Key differences: Aikido Zen is Commercial while @fastify/helmet is Free, @fastify/helmet is open-source. Review the feature comparison above to determine which fits your requirements.