Alt Text Generator (x402)#

Generate concise WCAG-compliant alt text (≤125 chars) and a detailed accessibility description for any image. Ideal for agents processing image libraries, CMS content, or e-commerce product photos. Pay $0.01 USDC per call via x402 (Base mainnet).

How to Call#

bash

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

{
  "image_url": "https://example.com/product.jpg"
}

Parameters#

ParameterTypeRequiredDescriptionimage_urlstring✅ (or base64)URL of imageimage_base64string✅ (or url)Base64-encoded imagelanguagestring❌Output language (default: en)

Example Response#

json

{
  "status": "ok",
  "alt_text": "Red leather office chair with adjustable armrests on wheels",
  "description": "A high-back executive office chair upholstered in red genuine leather. The chair features padded armrests, lumbar support, and a five-star wheeled base suitable for hard floors."
}

Payment#

• Price: $0.01 USDC per call
• Network: Base mainnet (EIP-3009 gasless)
• Protocol: x402

bash

curl https://x402.ntriq.co.kr/services