I also voice my support for this particular data to be available via the api. It’s very odd having plenty of redundant data/endpoints available, but not providing these values. Seems fairly important to me and probably most who use this functionality and the api, one could argue that it should be considered part of the MVP.
Sorry for the work you’ve put into searching for the right endpoint, although the Binance Staking product is not available through API yet.
If it becomes available in the future, it’ll be announced in the API documentation.
Please add a way to get the total earn balance and all positions. Just like in the app (wallets->earn), but via the api. This is a must for tracking the coins. It is crazy that this is still missing in such a big exchange.