llm-guard

What it is

llm-guard is a TypeScript library designed to validate and secure Large Language Model (LLM) prompts, ensuring they are safe and appropriate before processing.

llm-guard stands out as the only TypeScript library specifically designed for validating and securing prompts intended for Large Language Models, offering developers a robust solution to ensure their applications are both secure and compliant.

When it fits — and when it doesn’t

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

1. 01

   Limited language support beyond TypeScript

   The primary development is in TypeScript, and while there's a community-maintained Python SDK, it lacks the depth of official support.

2. 02

   Complex setup for non-TypeScript projects

   Integrating llm-guard into projects that are not primarily built in TypeScript can be cumbersome due to a lack of comprehensive documentation and tooling outside of the TypeScript ecosystem.

3. 03

   Frequent breaking changes between versions

   Version updates from v0.1 to v0.2 required significant refactoring, indicating instability in API design which can disrupt ongoing projects.

4. 04

   Poor documentation for advanced use cases

   While basic usage is well-documented, detailed explanations and examples for more complex configurations or custom rule development are sparse.

What it does well

• Prompt validation and sanitization

• Security checks for LLM inputs

• Customizable rules for prompt evaluation

Pricing

Free tier

YesOpen source — free to use

Paid from

$0

Model

Flat rate

Enterprise plan

No

Pricing not independently confirmed — check the vendor’s page.