B-counting/Naija-tax-advisor

# NaijaLex — Nigerian Tax Law AI Advisor An open-source, AI-powered Nigerian tax law advisor with statutory citation display. Built with Node.js, Express, and the Claude API. ## Features - Answers grounded in CITA, PITA, VATA, Finance Acts 2019–2023, FIRS circulars - Every answer includes statutory citations with section references - Secure backend — Anthropic API key never exposed to the browser - Built-in rate limiting (20 requests/IP/hour) - MIT licensed and open-source ## Project Structure ``` naija-tax-advisor/ ├── server.js # Express backend + secure API proxy ├── package.json ├── .env.example # Copy to .env and add your key ├── .gitignore └── public/ └── index.html # Frontend chatbot UI ``` ## Local Development 1. Clone and install: ```bash git clone github.com cd naija-tax-advisor npm install ``` 2. Set your API key: ```bash cp .env.example .env # Edit .env: ANTHROPIC_API_KEY=sk-ant-your-key-here ``` Get your key at: console.anthropic.com 3. Run: ```bash npm run dev # development npm start # production ``` Visit localhost --- ## Deployment — Get a Public URL ### Option A: Railway (Recommended — free tier) 1. Push code to GitHub 2. Go to railway.app → New Project → Deploy from GitHub 3. Select your repo 4. In Variables tab, add: `ANTHROPIC_API_KEY=sk-ant-your-key` 5. Railway auto-detects Node.js and deploys 6. Your live URL: `your-app.railway.app` ### Option B: Render (Free tier) 1. Push code to GitHub 2. Go to render.com → New → Web Service 3. Connect your repo, set: - Build Command: `npm install` - Start Command: `npm start` 4. Add env var: `ANTHROPIC_API_KEY` 5. Your live URL: `your-app.onrender.com` ### Option C: Netlify Drop (No backend — standalone HTML only) Use the standalone `naija_tax_advisor_chatbot.html` file and drag it to app.netlify.com. Note: This exposes API calls from the browser. Use only for dem …