Home / Prompt-injection firewalls & guardrails / Guardrails AI
Guardrails AI
Open-source framework and validator hub for checking and correcting LLM inputs and outputs.
Open source + commercial
| Category | Prompt-injection firewalls & guardrails |
|---|---|
| Official site | guardrailsai.com/ |
| Maker | Guardrails AI |
| Ownership / acquisition | Not published / not yet verified |
| License model | Open source + commercial |
| License | Apache-2.0 |
| Public pricing | Not published / not yet verified |
| Source code | guardrails-ai/guardrails |
| Last verified | 2026-10-17 |
Facts are taken from the vendor's own site, GitHub, or a linked public source. Blank means we could not confirm it, not that it does not exist. Vendors can request a correction for free.
Lab result
Not yet tested. When we test a tool we run our attack batteries (prompt injection, indirect injection, MCP tool poisoning and more) and publish the result here, good or bad.