You can find the API documentations along with their descriptions right here.
Penguin Statistics highly welcome any form of API usage but we would like to kindly ask you to obey our data licenseAttribution-NonCommercial 4.0 International (CC BY-NC 4.0). Although we generally do not provide any form of rate limit (Advanced Query resource, in Penguin Statistics Backend, is the only exception), we still want to ask you to fairly use the service ;)
Please do not submit usage issues on GitHub Issues. We use GitHub Issues only for bugs and feature requests.
You could contact us using various methods including: