Guardrails AI
Open-source (Apache-2.0) Python framework for LLM guardrails: wrap model calls in Guards that run validators on input and output, from PII and toxicity checks to your own rules, and get structured data back. Validators come from Guardrails Hub as pip packages, and it runs in your code or as a REST server with guardrails start.
- Category
- Frameworks & Dev ToolsWeb frameworks, local developer utilities and tooling around AI coding agents.
- Website
- guardrailsai.comOfficial site, opens in a new tab.
- Pricing
- See official siteWe only list verified pricing.
Part of the AI Agent Infrastructure collection.
On the AI guardrails list.
Built Guardrails AI? Get featured
Similar tools.
Proa
Batteries-included Rust web framework with fast server rendering and multi-target rendering (HTML, Markdown and more) from one typed component.
Sygal
Local-first Mac and Windows app plus CLI that converts PDFs, Office files, scans and web pages into clean Markdown or JSON for AI prompts and pipelines.
Weatherdeck
Open-source, read-only status board for TV or phone showing what your AI coding agent lanes and machines are doing and what is waiting on you.
Sphinx
Free, MIT-licensed Git hook that quizzes you on what your coding agent's diff actually does before a push to protected branches goes through; works with Claude Code, Codex, Cursor or plain Git.
The 2 biggest AI stories, every morning.
One short email: the two stories that matter, and why.
You're in.
The Daily AI Brief will land in your inbox soon. If you don't see it, check Promotions or Spam and move it to your main inbox.