AI Guard Response Tracing for LangChain in JavaScript

An example JavaScript app demonstrating how to integrate Pangea's AI Guard service into a LangChain app to monitor and sanitize LLM generations.

Prerequisites

• Node.js v22.
• A Pangea account with AI Guard enabled.
• An OpenAI API key.

Setup

git clone https://github.com/pangeacyber/langchain-js-aig-response-tracing.git
cd langchain-js-aig-response-tracing
npm install
cp .env.example .env

Fill in the values in .env and then the app can be run like so:

npm run demo -- "A prompt would go here."

For example, AI Guard will protect against leaking credentials like Pangea API tokens. The easiest way to demonstrate this would be to have the LLM repeat a given (fake) API token:

npm run demo -- "Echo 'pts_testtesttesttesttesttesttesttest' back."

The output after AI Guard is:

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