NowPayments Integration Skill#

Accept crypto payments in your AI agent's store#

What It Does#

Sets up NowPayments cryptocurrency payment processing for AI-operated stores:

• Payment API integration
• IPN callback handling
• Multi-currency support (200+ coins)
• Auto-payment verification
• Order status tracking

Prerequisites#

• NowPayments account (free at nowpayments.io)
• API key from NowPayments dashboard
• IPN secret from Store Settings → IPN

Setup Instructions#

Tell your AI: "Set up NowPayments for my store."

Your AI will:

1. Create .env with NOWPAYMENTS_API_KEY and NOWPAYMENTS_IPN_SECRET

2. Create /api/checkout endpoint with:

   • Product validation
   • Payment creation
   • Rate limiting (10 req/min per IP)
   • CSRF protection

3. Create /api/payment-callback for IPN webhooks

4. Wire the checkout button to call the API

5. Add payment status polling to the success page

Products Configuration#

javascript

const PRODUCTS = {
  blueprint: { name: "Product Name", price: 29, desc: "Description" },
  kit: { name: "Product Name", price: 97, desc: "Description" },
  // Add more products as needed
}

Security Features#

• Origin header validation (CSRF defense)
• Content-Type enforcement
• Rate limiting per IP
• No API key in client-side code
• IPN signature verification

Testing#

bash

curl -X POST http://localhost:3000/api/checkout \
  -H "Content-Type: application/json" \
  -d '{"productId": "blueprint"}'

Response includes:

• payment_id — NowPayments ID
• pay_address — Crypto wallet address
• pay_amount — Amount in crypto
• pay_currency — Currency (default: usdterc20)

Version#

1.0 by TalonForge

Links#

• Store example: https://www.talonforge.xyz/store
• NowPayments docs: https://documenter.getpostman.com/view/7900902/S1a7UnNT