PII Firewall
5.7#17 in ai guardrail softwareFree planFree planLinuxSelf-hosted
VisitPII Firewall vs PromptGuard
PromptGuard
7.9#1 in llm security toolsFrom $19 a monthFree planWebAPIExtensionLinux
VisitWhat both publish
| Fact | PII Firewall | PromptGuard |
|---|---|---|
| Integrations | Examples cover OpenAI, Anthropic, LangChain, FastAPI, streaming transport, Ollama, LiteLLM, and arbitrary HTTP LLM endpoints. | The site lists integrations/providers including OpenAI, Anthropic, Gemini, Azure, Bedrock, Mistral, Cohere, DeepSeek, Groq, HuggingFace, Ollama, and vLLM. |
PII Firewall plans
- Open sourceFree
PromptGuard plans
- FreeFree
- Team$19 a month
- Build$99 a month
- Pro$99 a month
- EnterprisePriced on request
- Scale—
Pick PII Firewall if…
It suits teams handling sensitive text in healthcare, finance, or legal workflows. Linux users who want to host a Python-based PII layer themselves may also find it relevant.
Pick PromptGuard if…
PromptGuard suits teams that want to inspect LLM requests before they reach a provider, with deployment options ranging from managed cloud to air-gapped installation. It may suit teams seeking PII controls or integrations with the listed providers.