🛡️ ClauseGuard
AI-powered contract analysis that explains every clause in plain English before you sign.
Live Demo →
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
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.
