Mosaic provides a simple API for on-demand OG images. Send a GET request to:

https://mosaic.praveenjuge.com/use?url=YOUR_URL

Replace YOUR_URL with the encoded HTTPS page URL you want to capture. Add the page's hostname to any Mosaic account once, then use the endpoint directly—no verification file, token, or signature is required. Images are cached globally by canonical page URL and refreshed automatically after 30 days.

Use mode=demo to test a public URL without storing an image.

Example using curl:

curl "https://mosaic.praveenjuge.com/use?url=https%3A%2F%2Fexample.com"

The response is a 307 redirect to the cached or newly generated OG image.