Invoice Extraction (x402)
Turn invoice or receipt images into structured JSON — vendor, customer, line items, tax, totals, payment terms. Local AI vision, no cloud upload, no API key. Pay $0.03 USDC per call via x402 (Base mainnet).
How to Call
POST https://x402.ntriq.co.kr/invoice-extract
Content-Type: application/json
X-PAYMENT: <x402-payment-header>
{
"image_url": "https://example.com/invoice.jpg"
}
Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
image_url |
string | ✅ (or base64) | URL of invoice/receipt image |
image_base64 |
string | ✅ (or url) | Base64-encoded invoice image |
language |
string | ❌ | Output language (default: en) |
Example Response
{
"status": "ok",
"invoice": {
"vendor_name": "Acme Supplies Ltd.",
"vendor_address": "123 Main St, San Francisco, CA",
"vendor_tax_id": "12-3456789",
"invoice_number": "INV-2024-0847",
"invoice_date": "2024-03-15",
"due_date": "2024-04-15",
"customer_name": "Tech Corp",
"line_items": [
{"description": "Widget A", "quantity": 100, "unit_price": 4.50, "amount": 450.00},
{"description": "Shipping", "quantity": 1, "unit_price": 25.00, "amount": 25.00}
],
"subtotal": 475.00,
"tax_rate": "0%",
"tax_amount": 0,
"total": 475.00,
"currency": "USD",
"payment_terms": "Net 30"
}
}
Payment
- Price: $0.03 USDC per call
- Network: Base mainnet (EIP-3009 gasless)
- Protocol: x402
curl https://x402.ntriq.co.kr/services