
PromptGuard
7.9#1 in llm security toolsFrom $19 a monthFree planWebAPIExtensionLinux
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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.
It suits offensive security researchers and teams performing prompt-injection red-team exercises on LLM agents. Users should be comfortable with self-hosted command-line tools and provider credentials.