Document Intelligence (x402)#

Analyze document images — invoices, contracts, forms, reports — with local AI vision. Extracts text, classifies document type, pulls tables, or summarizes. No cloud upload, no API key. Pay $0.05 USDC per call via x402 micropayment (Base mainnet).

How to Call#

bash

POST https://x402.ntriq.co.kr/document-intel
Content-Type: application/json
X-PAYMENT: <x402-payment-header>

{
  "image_url": "https://example.com/document.png",
  "analysis_type": "extract"
}

The server responds with 402 Payment Required first. Sign the EIP-3009 payment payload and retry with X-PAYMENT header.

Parameters#

ParameterTypeRequiredDescriptionimage_urlstring✅ (or base64)Publicly accessible URL of document imageimage_base64string✅ (or url)Base64-encoded document imageanalysis_typestring❌extract (default), summarize, classify, table``languagestring❌Output language ISO code (default: en)

analysis_type Options#

ValueWhat it doesextractFull text extraction preserving structuresummarizeKey points, dates, amounts, partiesclassifyDocument type + key metadatatableAll tables as JSON array

Example Response#

json

{
  "status": "ok",
  "analysis_type": "classify",
  "analysis": "invoice",
  "confidence": 0.97,
  "metadata": {
    "vendor": "Acme Supplies Ltd.",
    "invoice_number": "INV-2024-0847",
    "date": "2024-03-15",
    "total": "$475.00"
  }
}

Payment#

• Price: $0.05 USDC per call
• Network: Base mainnet (EIP-3009 gasless)
• Protocol: x402
• Wallet: 0x124AaFfF8Ef45F2cA953807aF09Aacec2D9F8307

bash

# Service catalog
curl https://x402.ntriq.co.kr/services