Aikido Zen vs @fastify/rate-limit: 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/rate-limit: A low overhead rate limiter for your routes..

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/rate-limit is open-source with 588 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

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