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Relaystation Placeholder Image Generator
x402
Relaystation Placeholder Image Generator is a paid API for AI agents from api.relaystation.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Generates placeholder images at any specified size with optional label text, returning PNG or SVG output
Price / call$0.01
Success—
StatusUnknown
How this service works
$0.0002/call. Placeholder images at any size with label text — PNG or SVG. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny
Output
Returns a placeholder image file (PNG or SVG) at the requested dimensions, filled with a neutral background and optionally displaying the specified label text centered on the image.
Example use cases
Wireframe mockup for web layout
“Make me a 800x400 PNG placeholder image that says 'Product Hero' in the middle — I'm putting together a wireframe and need something to fill the main banner slot.”
Prototype thumbnail grid filler
“I need a bunch of placeholder SVG images at 300x200 each, labeled 'Thumbnail' — I'm building a prototype product listing page and need filler images to show the grid layout.”
Email template placeholder graphic
“Generate a 600x200 PNG placeholder with the text 'Email Header' on it so I can preview how this email template will look before the real graphic is ready.”
Technical details
Endpoint
POSThttps://api.relaystation.ai/v1/generate/placeholderWhen to prefer
Use this endpoint when you need a quick, programmatic placeholder image at precise dimensions with custom label text for UI mockups, wireframes, email templates, or any layout that requires a filler graphic. Prefer it over static stock placeholder services when you need dynamic sizing via API, SVG output support, or pay-per-call pricing with no subscription.
Side effects
- Invalid or missing dimension parameters return a 400 error
- Unsupported output format string returns an error
- Payment failure or insufficient x402 credits blocks the request
- Extremely large dimensions may be rejected or time out
- Label text that is too long may be truncated or overflow the image
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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