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24K Labs Placeholder Image Generator
x402
24K Labs Placeholder Image Generator is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Generates a solid-color placeholder image with optional centered text, requiring no input image.
Price / call$0.002
Success—
StatusUnknown
How this service works
Generate a solid-color placeholder image with optional centered text (no input image needed).
Output
Returns a generated image file (solid color background with optional centered text) in a standard image format, ready to embed in UIs, mockups, or prototypes.
Example use cases
Wireframe image placeholder for UI
“I need a 800x600 placeholder image with a light gray background and the text 'Hero Image' centered on it in dark gray — for a wireframe mockup I'm building.”
Color swatch card for design system
“Generate a solid-color image that's 200x200 pixels with a hex color of #FF5733 and the label '#FF5733' centered in white text, so I can use it in my design system docs.”
Thumbnail placeholder for video grid
“Make me a placeholder thumbnail image 320x180 pixels with a dark navy background and the word 'Unavailable' centered in yellow text — I need it to fill missing spots in a video grid.”
Technical details
Endpoint
POSThttps://api.24klabs.ai/api/placeholder-imageWhen to prefer
Choose this endpoint when you need a quick, programmatic placeholder image without any input image — ideal for UI prototyping, wireframing, design systems, or filling missing image slots in grids. Prefer this over image conversion endpoints (which require an existing image) or AI image generation endpoints (which produce complex imagery from prompts).
Side effects
- Invalid color values or unsupported color format may return an error
- Unsupported or extreme image dimensions may be rejected
- Missing required dimension parameters will return a validation error
- Network timeout if the service is temporarily unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | |
| width | number | |
| height | number |
Output
Schema · Response
{
"type": "json",
"example": {
"width": 200
}
}Tags
x402
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