get https://api.blockberry.one/sui/v1/validators/avg-apy
Get a chart showing the APY (annual percentage yield) of the queried validator. APY shows how much an account can earn per year by delegating Sui funds to the queried validator. This is a key metric to consider while making an investment decision. Avg APY is a rough estimation. The actual returns from staking may differ.
This is the Pro endpoint, currently available for free as part of the API campaign.