Crucible
5.8#17 in ai security testing toolsFree planFree planLinuxSelf-hosted
VisitCrucible vs PromptGuard
PromptGuard
7.9#1 in llm security toolsFrom $19 a monthFree planWebAPIExtensionLinux
VisitWhat both publish
| Fact | Crucible | PromptGuard |
|---|---|---|
| Integrations | It supports LangChain, CrewAI, AutoGen, raw MCP endpoints, and agents with an HTTP or MCP interface. | The site lists integrations/providers including OpenAI, Anthropic, Gemini, Azure, Bedrock, Mistral, Cohere, DeepSeek, Groq, HuggingFace, Ollama, and vLLM. |
Crucible plans
- CommunityFree
- EnterprisePriced on request
- TeamPriced on request
PromptGuard plans
- FreeFree
- Team$19 a month
- Build$99 a month
- Pro$99 a month
- EnterprisePriced on request
- Scale—
Pick Crucible if…
Crucible suits individual builders and open-source projects that want local agent security checks, as well as teams shipping agents to production. Its CI integration is relevant to users who want builds to fail when a configured security-score threshold is missed.
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.