EmbedAPI is described as 'Embed images, video, music, live video, gifs. Simple yet effective API'. There are four alternatives to EmbedAPI, not only websites but also apps for Self-Hosted solutions, SaaS and Node.JS. The best alternative is Embedly. It's not free, so if you're looking for a free alternative, you could try microlink.io or Iframely.
Turn any URL into embeddable content. Embedly makes your site more engaging with images, articles, videos, and rich media. You can choose from three tools to start embedding, pick the best one for you:
A browser as API. Extract structured data from any website. Enter a URL, receive information. Get relevant information from any link & easily create beautiful previews. Take a screenshot of any website. Turns any website into a PDF.