Fastly API Security is a commercial API security solution by Fastly. 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 each one.
Best for: Fastly customers protecting APIs on the edge
It is on the list because discovery and blocking happen on the Fastly edge where your API traffic already flows, and it sends alerts to Slack, Jira, PagerDuty and Datadog. If your APIs are not behind Fastly, or most of your risk sits in internal and partner APIs, its edge view will see less of it, so weigh that first.
From Best API Security Solutions for Business, Fall 2026
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 platform for discovery, monitoring, and protection at edge
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.
Fastly API Security fits if you want a cloud product.
Imperva API Security fits if you need both cloud and on-premises options.
Common questions when comparing Fastly API Security vs Imperva API Security for API security.
Fastly API Security: API security platform for discovery, monitoring, and protection at edge, built by Fastly.
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.
Fastly API Security is made by Fastly. 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. Fastly API Security and Imperva API Security are both API Security products, and both cover Bot Protection, WAF. Use the table above to see where features, deployment and company size fit differ.
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