Monarx Threat Shield is a commercial runtime application self-protection solution by Monarx. Wallarm API Security is a commercial API security solution by Wallarm. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
Best for: Teams wanting inline API blocking without specifications
Wallarm earns its place because it can start blocking before your APIs are documented, which helps when your specs lag behind the code. It runs hybrid, so you can put the filtering where your traffic is. Before you choose it, test its blocking modes on your busiest APIs, because a wrong block there lands on real users.
From Best API Security Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
Real-time web application firewall with runtime protection for PHP apps
Inline API discovery and protection platform blocking attacks, abuse, and ATO.
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.
Monarx Threat Shield fits if you need to run it on your own servers and you are a startup.
Wallarm API Security fits if you need both cloud and on-premises options.
Common questions when comparing Monarx Threat Shield vs Wallarm API Security for runtime application self-protection.
Monarx Threat Shield: Real-time web application firewall with runtime protection for PHP apps. Built by Monarx.
Wallarm API Security: Inline API discovery and protection platform blocking attacks, abuse, and ATO. Built by Wallarm.
The table above shows where their features, integrations, deployment and company size fit differ.
Monarx Threat Shield is made by Monarx. Wallarm API Security is made by Wallarm. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
In part. Monarx Threat Shield and Wallarm API Security are not in the same category on CybersecTools. Both cover DDoS. Use the table above to see where features, deployment and company size fit differ.
No Runtime Application Self-Protection shortlist yet. This is the closest one.
Updated 2026-11-02
See the shortlist
