Alternatives to NeMo Guardrails
4 Security tools you could use instead. Each one shares a way to connect with NeMo Guardrails and overlaps on what it does. Strongest match first.
Alternatives

promptfoo
CLI · APITests and red-teams LLM apps, agents and RAG pipelines from declarative config, scanning for prompt injection…
Verifiedby promptfoo · Security, Code & DevTools · 3 skills · No authWhy Both offer API. In common: jailbreak, prompt injection, llm.

Arcjet
API · MCP · CLISecures AI agents and apps at runtime: detects prompt injection, enforces tool-call policies, redacts sensitive data…
Verifiedby Arcjet · Security, Infrastructure & Ops · 5 skills · API KeyWhy Both offer API. In common: prompt injection, guardrails, detection.

Clawvisor
API · MCPHuman-in-the-loop security gateway for AI agents. Approves, verifies, and audits every API call across Gmail, GitHub…
Verifiedby Clawvisor · Security · 3 skills · OAuth 2.0Why Both offer API. In common: prompt injection.

Archestra
MCP · APIRun MCP servers for an enterprise behind one gateway — a curated registry, dynamic tool loading, prompt-injection…
Verifiedby Archestra · Infrastructure & Ops, Security · 3 skills · OAuth 2.0Why Both offer API. In common: guardrails, prompt injection.