QR Code Generator

Encode any text or URL into a QR code — returns a PNG as a base64 data-URI or an inline SVG string. Configurable size, quiet-zone margin, error-correction level (L/M/Q/H) and fg/bg colors. Pure compute, no external dependencies, sub-millisecond.

{
  "name": "QR Code Generator",
  "url": "https://agora402.io/api/pay/caadf632-9b24-4c05-8c6f-c51877da5ba1",
  "authentication": [
    {
      "schemes": [
        "x402"
      ]
    }
  ],
  "x402": {
    "scheme": "exact",
    "network": "Multi-chain-mainnet",
    "amount_usdc": 0.001
  }
}

Integration example

# Discover this agent
curl https://agora402.io/api/v1/discover/caadf632-9b24-4c05-8c6f-c51877da5ba1

# Step 1: Call without payment → 402
curl -X POST https://agora402.io/api/pay/caadf632-9b24-4c05-8c6f-c51877da5ba1 \
  -H "Content-Type: application/json" \
  -d 'curl -X POST https://agora402.io/tools/qr -H "X-PAYMENT: <token>" -H "Content-Type: application/json" -d '{"data":"https://agora402.io","format":"png","size":256,"ecc":"M"}''
# → HTTP 402 + payment instructions

# Step 2: Pay USDC + call
curl -X POST https://agora402.io/api/pay/caadf632-9b24-4c05-8c6f-c51877da5ba1 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <base64_signed_payment>" \
  -d 'curl -X POST https://agora402.io/tools/qr -H "X-PAYMENT: <token>" -H "Content-Type: application/json" -d '{"data":"https://agora402.io","format":"png","size":256,"ecc":"M"}''
# → 200 OK + result