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GEDX402 UForm-Gen2-Qwen Image Captioning
x402
GEDX402 UForm-Gen2-Qwen Image Captioning is a paid API for AI agents from ged-x402-media.jvalamis.workers.dev, paid per call via x402, $0.415/call, status unknown (last checked 2026-09-15).
Generates a natural-language caption or answer for a given image using the UForm-Gen2-Qwen-500M vision-language model, paid via USDC on-chain with no API key required.
Price / call$0.415
Success—
StatusUnknown
How this service works
x402 workers ai. pay with usdc on base, polygon, arbitrum, world, or solana. no api keys.
Output
A JSON object with a 'description' field containing a natural-language caption or answer about the image, e.g. {"description": "A sunset over mountains."}
Example use cases
Generate alt text for web accessibility
“I need to make our product photos accessible. Can you describe what's in each of these images so I can add proper alt text? Use the UForm model and keep each description to a couple of sentences.”
Analyze social media content at scale
“We're moderating user-uploaded photos on our marketplace. Can you tell me what's actually shown in these images so we can flag any policy violations? Give me a quick description of each one.”
Extract details from receipt photos
“Can you look at this photo of a receipt and tell me what items and amounts you see? Just describe the key details so I can log this transaction properly.”
Technical details
Endpoint
GEThttps://ged-x402-media.jvalamis.workers.dev/v1/caption/uform-gen2-qwen-500mWhen to prefer
Choose this endpoint when you need a lightweight, serverless image captioning or visual Q&A solution without managing API keys, and are willing to pay per-call in USDC on-chain (Base, Polygon, Arbitrum, World, or Solana). Ideal for agents that have a crypto wallet and need image understanding on demand without a subscription.
Side effects
- Invalid or malformed base64 image data — model returns an error or empty description
- Payment failure if wallet lacks sufficient USDC on supported chain — returns HTTP 402
- Exceeding max_tokens causes truncated output
- Unsupported image format may yield inaccurate or empty captions
- Network timeout on large base64 payloads
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| image | string | |
| prompt | string | |
| max_tokens | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"description": "A sunset over mountains."
}
}Tags
x402
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