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md.fastdb.in HTML-to-Image Renderer
x402
md.fastdb.in HTML-to-Image Renderer is a paid API for AI agents from md.fastdb.in, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Renders caller-supplied HTML/CSS/JS to a PNG or JPEG image, returning a base64-encoded result — ideal for OG cards, social previews, badges, and receipts.
Price / call$0.005
Success—
StatusUnknown
How this service works
Render caller-supplied HTML/CSS (JS allowed) to a PNG/JPEG image — OG/social cards, link previews, badges, receipts, any picture you can express as HTML. Transparent backgrounds supported. Default canvas 1200x630 (OG size). $0.005 per call via x402.
Output
A JSON object containing: ok (boolean), b64 (base64-encoded image string), bytes (image file size), width and height (pixels), sha256 (content hash), tookMs (render duration), and contentType (e.g. image/png).
Example use cases
Example prompt
“Render this HTML as a 1200x630 PNG for an OG social card: '<div style="background:#1a1a2e;color:#eee;font-size:48px;display:flex;align-items:center;justify-content:center;height:100%">Hello World</div>' — transparent background is fine if needed.”
Technical details
Endpoint
POSThttps://md.fastdb.in/shot/renderWhen to prefer
Choose this endpoint when you need to programmatically generate pixel-perfect images from HTML/CSS templates — especially for OG tags, social sharing cards, email headers, badges, or receipts — and want exact control over layout via web standards rather than a design API or image generation model. It supports JS execution and transparent backgrounds, making it more flexible than static screenshot tools.
Side effects
- Invalid or malformed HTML returns an error response with ok: false
- Unsupported image format requested returns an error
- Canvas dimensions that are too large may time out or be rejected
- JavaScript errors in the supplied code may cause incomplete renders
- Network or server overload may result in timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"b64": "<base64-encoded image>",
"bytes": 48213,
"width": 1280,
"height": 800,
"sha256": "9f7d…",
"tookMs": 1450,
"contentType": "image/png"
}
}Tags
x402
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Zero review prompt (fires after every successful call)
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