Is NeMo Guardrails safe to use?

NeMo Guardrails has an HVTrust score of 72.0/100 (Grade B), ranked #117 of 1283 tracked AI agent projects. This score reflects verifiable supply-chain integrity, transparency, maintenance, and adoption signals.

What is the trust score for NeMo Guardrails?

NeMo Guardrails scores 72.0/100 on HVTracker's evidence-weighted HVTrust scale. It has 6.9k GitHub stars and is categorized under Security & Guardrails.

NeMo Guardrails

NVIDIA/NeMo-Guardrails

NeMo Guardrails is an open-source toolkit for easily adding programmable guardrails to LLM-based conversational systems.

Security & Guardrails Python Grade B Listed NOASSERTION

72.0/100

Rank #117 of 1283

Compare NeMo Guardrails

How does it stack up against its Security & Guardrails neighbours?

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Promising trust profile, but some evidence still deserves review.

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Listing state

Listed

Evidence coverage

Grade A · 4/5 signals

Last push

2026-08-11 · 0d ago

Recent change

Rank

Is NeMo Guardrails safe? NeMo Guardrails scores 72.0/100 (Grade B), ranked #117 of 1283 tracked open-source AI agent projects, on evidence coverage A (4 of 5 independent signal types). The public evidence: no package-provenance attestation found; OSSF Scorecard rates its supply-chain practices 6.4/10; 100% of recent commits are signed; last pushed 2026-08-11. Every point is earned from checkable signals — never paid placement. How scoring works →

Ranked neighbours in Security & Guardrails

#1 DvalinCode — 84.5 (A) → #2 Guardrails AI — 81.9 (A) → #4 REA — 70.6 (B) → #5 Snyk Agent Scan — 64.1 (C) →

Quick Trust Read

What Would Improve It

Publish package provenance or release attestations for stronger supply-chain evidence.

Recent Changes

2026-08-08

Rank Moved

Rank dropped 14 spots (#99 → #113)

2026-07-13

Rank Moved

Rank dropped 10 spots (#77 → #87)

Maintainer Checklist

Raise Scorecard signals Current OSSF Scorecard is 6.4/10. Tighten the weakest checks to improve public safety evidence.

Publish provenance Add package provenance or release attestations so users can verify where shipped artifacts came from.

Compare with DvalinCode Get email alerts for NeMo Guardrails View Security & Guardrails Report missing data

82.2

Activity sub-score · out of 100

In Security & Guardrails

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption. Grade B reflects the trust score band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Evidence coverage A is separate — it grades how many independent signal types back the score (4 of 5), so a high score on thin evidence stays visible. Full methodology →

Activity & Reach

Stars

6.9k

Forks

804

Last Push

2026-08-11

today

Commits (4 wk)

Downloads (7d)

79,331

pypi

HN mentions (30d)

Open Issues

130

Rank Change

was #117

Analysis

HVTrust Dimensions vs Security & Guardrails

72.0 / 100 · 100.0% confidence

NeMo Guardrails Security & Guardrails average (19 agents)

Safety / Integrity50% OSSF Scorecard · 30% provenance · 20% signed commits

13.0 / 25

4.7 above avg 8.3

Identity / Provenance60% listing status · 40% build provenance

10.8 / 18

1.1 below avg 11.9

Transparency50% declared license · 50% OSSF Scorecard

13.9 / 17

2.2 above avg 11.7

Maintenance60% last-push freshness · 40% commit activity

18.6 / 20

2.2 above avg 16.4

AdoptionLog-scaled stars · package downloads

15.7 / 20

5.7 above avg 10.0

Activity Inputs

82.2 / 100

StarsRepository reach

23.0 / 30

FreshnessLast push recency

25.0 / 25

ActivityRecent commits

20.7 / 25

CommunityFork signal

13.5 / 20

Supply Chain Trust

Package Provenance

None

No package attestations found

OSSF Scorecard

6.4 / 10

OpenSSF Scorecard · scanned Aug 10, 2026

Signed Commits

100%

of last 100 commits verified

Binary-Artifacts 10

Branch-Protection 2

CI-Tests 10

CII-Best-Practices 0

Code-Review 7

Contributors 10

Dangerous-Workflow 10

Dependency-Update-Tool 10

Fuzzing 0

License 9

Maintained 10

Packaging 10

Pinned-Dependencies 2

SAST 10

Security-Policy 10

Signed-Releases -1

Token-Permissions 0

Vulnerabilities 0

Is NeMo Guardrails safe?

NeMo Guardrails has a mixed signal profile. Some trust indicators are present, others are missing. Whether it is safe for your use case depends on which gaps matter to you — review the breakdown below before adopting in production.

Does NeMo Guardrails publish package provenance?

No published build provenance is currently detected for NeMo Guardrails. This is common for open-source projects but means consumers cannot independently verify that the package on the registry matches the GitHub source.

Does NeMo Guardrails have an OpenSSF Scorecard?

NeMo Guardrails has an OpenSSF Scorecard score of 6.4/10. The Scorecard checks for branch protection, signed releases, dependency updates, fuzzing, code review, and other supply-chain hygiene items. See the full check breakdown on this page.

Is NeMo Guardrails actively maintained?

Actively maintained. The repository was pushed to within the last 1 day(s).

What license does NeMo Guardrails use?

NeMo Guardrails ships under NOASSERTION. A declared, OSI-approved license is one of the transparency signals HVTrust scores.

Are NeMo Guardrails's commits signed?

100% of the last 100 commits to NeMo Guardrails are verified-signed (GPG, SSH, S/MIME, or GitHub's signing flow). Signed commits help confirm that code was authored by who the commit claims.

Not a safety endorsement. HVTracker describes what public signals show, not whether a project is safe for your use case. Run your own security review before adopting in production.

Compare NeMo Guardrails head-to-head

NeMo Guardrails vs DvalinCode → NeMo Guardrails vs Guardrails AI → NeMo Guardrails vs REA →

AI agent surface

MCP, providers, tool surface

Scored in HVTrust

These runtime-trust fields — detected from public repo docs and manifests — contribute a bounded adjustment to this project's HVTrust score alongside supply-chain evidence. The exact values each field can add or subtract are documented in the methodology → Compare this surface across every listed agent in the capability matrix →

MCP Server Support

None detected

No MCP server signal detected.

Detailed evidence is not shown in the public view.

External Service Dependencies

high confidence

1 detected

Public provider/service dependencies detected.

OpenAI

Credential signal: No explicit API-key/config marker detected.

Tool / Plugin Surface

None detected

No clear plugin system or broad tool surface detected.

Detailed evidence is not shown in the public view.

Package Provenance Drift

low confidence

Unknown

Package source metadata is missing or inconclusive

Detailed evidence is not shown in the public view.

MCP signal live
External deps live
Tool / plugin surface live
Package provenance drift live

Maintain NeMo Guardrails?

For maintainers

HVTrust scores NeMo Guardrails from public signals only — we never contact maintainers first. If a signal is wrong, stale, or missing (provenance you publish, a Scorecard you run, signed releases), tell us and we'll review it. Corrections are public and tracked on GitHub.

Submit a correction → Add the trust badge

Reputation Timeline

Signal history

2026-08-08

Rank Moved

Rank dropped 14 spots (#99 → #113)

2026-07-13

Rank Moved

Rank dropped 10 spots (#77 → #87)

2026-05-29

HVTrust Changed

HVTrust up 10.0pts (62.1 → 72.1)

2026-05-28

Activity Score Changed

Activity score up 23pts (61 → 84)

2026-05-27

Scorecard Added

OSSF Scorecard: 6.8/10

2026-05-27

Grade Changed

Trust grade D → B

2026-05-27

HVTrust Changed

HVTrust up 41.6pts (25.1 → 66.7)

2026-05-25

Newly Listed

First tracked at rank #108

GitHub → PyPI: nemoguardrails

Embed Badge Badge guide for maintainers →

For maintainers

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Other agents in Security & Guardrails

Data sources
GitHub REST API (repo, commits, stars, forks, license) · PyPI / pypistats (downloads, provenance) · OpenSSF Scorecard CLI · Algolia HN Search API
Each agent's signals refresh once daily across 6 staggered batches. Methodology v4.3 · Raw JSON