🛡️ ClauseGuard

AI-powered contract analysis that explains every clause in plain English before you sign.

Live Demo →

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Features

• Drag-and-drop PDF upload — paste a lease or employment contract and get results in seconds
• Color-coded risk flags — green (standard), amber (watch this), red (risky/unusual)
• Plain-English explanations — no legal jargon, written for the person signing
• Negotiation tips — actionable advice on every amber and red clause
• Jurisdiction-aware analysis — tailored for Ontario, BC, California, and New York law
• Sample contract — try it instantly without uploading anything
• Prompt caching — fast, cost-efficient Claude API calls on repeated analyses

Tech Stack

Layer	Choice
Framework	Next.js 16 App Router
Language	TypeScript
Styling	Tailwind CSS v4
AI	Anthropic Claude API (claude-sonnet-4-6)
PDF parsing	pdf-parse v1
Deployment	Vercel

Local Setup

Prerequisites

• Node.js 18+
• An Anthropic API key

Steps

# 1. Clone the repo
git clone https://github.com/Kashh99/clauseguard.git
cd clauseguard

# 2. Install dependencies
npm install

# 3. Add your API key (see Environment Variables below)

# 4. Start the dev server
npm run dev

Open http://localhost:3000.

Environment Variables

Create a .env.local file in the project root:

ANTHROPIC_API_KEY=sk-ant-...

Never commit this file. It is already listed in .gitignore.

Deploy

The easiest path is one-click deploy to Vercel:

Add ANTHROPIC_API_KEY as an environment variable in the Vercel project settings before deploying.

Disclaimer

ClauseGuard is for informational purposes only. It is not a substitute for advice from a qualified lawyer.