This API was created by Plasticity. The Plasticity Sapien API endpoint is located at https://api.plasticity.ai/. You can find the Plasticity portal / hompage here. The Plasticity Sapien API is not currently available on the RapidAPI marketplace.
Click "Request this API on RapidAPI" to let us know if you would like to access to this API.
Meanwhile, you can check out the top APIs that currently available for developers.