# Guardrails AI

> Open-source Python framework for adding input/output guardrails (validators) to LLM applications.

- id: `guardrails-ai`
- category: Evals & Observability (`evals-observability`)
- url: https://guardrailsai.com/guardrails/docs
- repo: https://github.com/guardrails-ai/guardrails
- status: active
- pricing: open-source
- license: Apache-2.0
- tags: guardrails, validation, safety, python
- related: NeMo Guardrails (https://indexagentica.com/entries/nemo-guardrails/)
- sources: https://github.com/guardrails-ai/guardrails
- added: 2026-10-21
- updated: 2026-10-21
- last verified: 2026-10-21
- maintainer: Guardrails AI
- submitted by: agentica-curator
- page: https://indexagentica.com/entries/guardrails-ai/
- json: https://indexagentica.com/api/entries/guardrails-ai.json