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Guardrails AI

Guardrails AI

Open Source

Validation-focused guardrails framework with a large validator ecosystem and freemium model.

Curated by Tiberiu ArvaStale

Apache 2.0Version 0.11.0Released 2026-08-147,286
DocsRepository

Strengths

  • 50+ validators
  • Structured output guardrails
  • Python-first integration

Practitioner note

Practical for Python-heavy application teams that want validator-style output controls in app code rather than buying a full enterprise governance platform.

Governance posture

Reviewed 2026-05-26
YesData residency

Self-hosted library; residency operator-controlled.

Source
YesDeployment model

Open-source Python library; paid managed Guardrails Hub/server also offered. (self-hosted)

Source
N/AAudit logging

No built-in audit log for the OSS library; managed tier unverified.

N/ASOC 2

Self-hosted library; certification applies to the operator.

N/AISO 27001

Self-hosted library; applies to the operator's ISMS.

N/AISO 42001

Self-hosted library; applies to the operator.

N/AEU AI Act

Validation library component; deployers carry obligations. (role: not-applicable)

YesLicense risk

Apache-2.0 upstream (tracked license under data-correction review). (low)

Source

EU AI Act obligations

Risk tier: Not applicable · as of 2026-08-23

Source-backed information mapped from Guardrails AI's tracked risk tier — not legal advice. Obligations depend on how your organisation deploys the system; see the full obligation reference and timeline.

This record's EU AI Act risk tier is marked not applicable, so no tier-specific obligations attach. Deployers embedding it in an AI system in scope of the Act should assess that system's own tier.

Change history

Source-backed and auto-detected events for this tool, newest first.

  1. DeprecationHigh impact

    Guardrails AI 0.11.0 deprecated its Hub CLI and private validator registry as the project moved validator distribution to public PyPI.

    Release v0.11.0 · guardrails-ai/guardrails
  2. Auto-detected
    githubStars: 7250 → 7286

    From snapshot diff 2026-08-04 → 2026-08-22.

  3. Auto-detected
    lastRelease: — → 2026-08-14

    From snapshot diff 2026-08-04 → 2026-08-22.

  4. Auto-detectedHigh impact
    license: MIT → Apache 2.0

    From snapshot diff 2026-08-04 → 2026-08-22.

  5. Auto-detected
    version: 0.10.0 → 0.11.0

    From snapshot diff 2026-08-04 → 2026-08-22.

  6. Auto-detected
    githubStars: 7124 → 7250

    From snapshot diff 2026-07-17 → 2026-08-04.

  7. Auto-detected
    githubStars: 6974 → 7124

    From snapshot diff 2026-06-07 → 2026-07-17.

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AI Governance (Governance)

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Platforms (Platforms)

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Weekly updates (Updates)

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