Agent Security Indexbeta

NeMo Guardrails

Open-source toolkit for adding programmable guardrails (topic, safety, jailbreak rails) to LLM apps.

Open source
CategoryPrompt-injection firewalls & guardrails
Official sitegithub.com/NVIDIA-NeMo/Guardrails
MakerNVIDIA
Ownership / acquisitionNot published / not yet verified
License modelOpen source
LicenseNot published / not yet verified
Public pricingFree (open source)
Source codeNVIDIA-NeMo/Guardrails
Last verified2026-10-17

Facts are taken from the vendor's own site, GitHub, or a linked public source. Blank means we could not confirm it, not that it does not exist. Vendors can request a correction for free.

Lab result

Not yet tested. When we test a tool we run our attack batteries (prompt injection, indirect injection, MCP tool poisoning and more) and publish the result here, good or bad.

How testing works