
middleBrick
mcp.glc-rag.hu
Nullgen
AIVory Guard
NULLSQUARE
Metlo API Security
No Prompt Injections
The firewall for AI prompts.

Simple, reliable & efficient distributed task queue for C++

Website, pricing, platforms and company facts side by side.
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| Website | promptguard.co | github.com |
| Pricing | — | |
| Listed in | — |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using PromptGuard and cppq. For example, how are they different and which one is better?
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Eight-layer multilingual prompt-injection defense for AI agents and RAG pipelines
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Real-time compliance & security validation for AI coding
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Continuous AI security testing for apps, APIs, cloud, and private environments — review findings, reports, and live agent activity in one place.
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Open Source API Security Platform
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