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24K Labs Image Resize
x402
24K Labs Image Resize is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Resizes an image (supplied as base64 or URL) to target width/height using contain, cover, or stretch fit modes.
Price / call$0.003
Success—
StatusUnknown
How this service works
Resize an image (base64 or URL) to target dimensions with fit modes contain/cover/stretch.
Output
Returns the resized image as a base64-encoded string along with the actual output dimensions, reflecting the applied fit mode (contain/cover/stretch).
Example use cases
Thumbnail generation for CMS
“Take this product image at https://store.example.com/images/shoe.jpg and resize it to 300 by 300 pixels using cover mode so it fills the thumbnail square.”
Avatar normalization pipeline
“I have a user-uploaded profile picture as base64 — resize it to 128 by 128 pixels with contain mode so nothing gets cropped before I store it.”
Banner image fitting for email template
“Resize this banner image URL to exactly 600 by 200 pixels using stretch mode to match our email header dimensions.”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/v1/image-resizeWhen to prefer
Choose this endpoint when you need a simple, fast server-side image resize with explicit fit-mode control (contain/cover/stretch) and don't want to spin up your own image processing infrastructure. It accepts both URLs and base64 inputs, making it convenient for agentic pipelines where images may be in either form. Prefer it over client-side resizing when consistent output dimensions are required across environments.
Side effects
- Invalid or unreachable image URL returns an error
- Malformed base64 data causes a parsing failure
- Unsupported fit mode value returns a validation error
- Requested dimensions are zero or negative — returns a bad request error
- Image format not supported returns a conversion error
- Network timeout fetching remote URL
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| fit | string | |
| width | number | |
| height | number | |
| image_b64 | string |
Output
Schema · Response
{
"type": "json",
"example": {
"width": 4
}
}Tags
x402
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