NeMo Guardrails
NVIDIA's open-source library for adding configurable input, output and dialog rails between an application and its LLM.
By NVIDIA · docs.nvidia.com/nemo/guardrails/latest/index.html
Package download activity
Each package is shown on its own; packages that can be installed together are never added up. Week 2026-W40 (2026-09-28 to 2026-10-04).
PyPInemoguardrails · headline (ranked)
148,111 downloads in the week, +64.0% vs prior week · rank 18 on PyPI
Reproduce this number (ClickHouse SQL) · registry metadata (mapping checked 2026-10-07)
GitHub stars
NVIDIA-NeMo/Guardrails: 7,260 stars (rank 16). Stars are a point-in-time count of a repository's bookmarks, not people using the tool.
Series starts 2026-W40 (7,260).
Facts
| Categories | Guardrails & safety | |
|---|---|---|
| Status | Generally available | |
| Licence | Apache-2.0 | source, checked 2026-10-07 |
| Self-host | Yes | source, checked 2026-10-07 |
| OpenTelemetry | Exporter / bridge | source, checked 2026-10-07 |
| Pricing model | free | |
| Entry price | Free; Open-source library; no paid plan found on first-party pages | source, checked 2026-10-07 |
| Free tier | Yes | |
| Measurability | Measured (mapped SDK packages) |
Facts last verified 2026-10-07 on first-party pages. Prices as published, taxes excluded; non-USD prices are not converted.
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