Top Application Firewall AI Tools

These tools act as a specialized filter between your web services and the open internet, blocking malicious traffic before it reaches your backend systems. They focus on identifying complex injection attacks, cross-site scripting, and unauthorized bot activity to keep your infrastructure stable. When evaluating your options, prioritize providers that offer low-latency inspection, seamless integration with your existing traffic flow, and granular control over security policies.

LockLLM
LockLLM

All-in-One AI Security

PromptGuard
PromptGuard

The firewall for AI prompts. Drop-in security for LLM apps.

Insight IT Solutions PrismGuard
Insight IT Solutions PrismGuard

Prompt-injection firewall for prod LLM apps

Patronus Protect
Patronus Protect

On-device AI firewall — see and control AI traffic, locally

Postwall
Postwall

Email firewall for AI agents — human stays in the loop

PromptLock
PromptLock

The AI firewall that understands compliance context

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