Unfold is available as a Docker image. You can run it on your own server or use a cloud service. Unfold Docker Image provides all the endpoints including the iframe endpoint. You can simply use Unfold by running the Docker image.
You can pull Unfold Docker Image into your server by running the following command.
docker pull hyvor/unfold:latest
Run this docker image inside a docker container. Make sure to bind the port 7272 with a prefered port to access unfold endpoints.
docker run -d -p 7272:7272 hyvor/unfold:latest
Now you can access Unfold endpoints.
http://127.0.0.1:7272/unfold?url=https://hyvor.com.com&method=link
http://127.0.0.1:7272/iframe?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DdQw4w9WgXcQ
You can find more details about iframe endpoint
here.