Forum Systems Sentry is a commercial API security solution by Forum Systems. Imperva API Security is a commercial API security solution by Imperva. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
Best for: Imperva WAF customers adding API discovery
Imperva earns a spot because it catches one user reading another user's data as it happens and can block it inline through the WAF you may already run. It suits you best if that WAF is Imperva Cloud WAF or WAF Gateway, and its self-managed option helps on hybrid estates. Imperva is now part of Thales, so check the roadmap and support model after that move.
From Best API Security Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
API security & Zero Trust enforcement for Docker microservices.
Unified API security platform for discovery, risk assessment, and mitigation
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
Forum Systems Sentry fits if you want a cloud product.
Imperva API Security fits if you need both cloud and on-premises options.
Common questions when comparing Forum Systems Sentry vs Imperva API Security for API security.
Forum Systems Sentry: API security & Zero Trust enforcement for Docker microservices, built by Forum Systems.
Imperva API Security: Unified API security platform for discovery, risk assessment, and mitigation, built by Imperva.
The table above shows where their features, integrations, deployment and company size fit differ.
Forum Systems Sentry is made by Forum Systems. Imperva API Security is made by Imperva. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Forum Systems Sentry and Imperva API Security are both API Security products. Use the table above to see where features, deployment and company size fit differ.
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