Sort:  

There's no API call. I collect the data by processing each block on the blockchain.

Here are some power down statistics: https://steemdb.com/labs/powerdown

Thanks. Interesting tool in that link but is it accurate? I do not see any notice of the latest powerdowns by Binance and Huobi. Or will they start appearing only next week?

A power down takes a week.

Coin Marketplace

STEEM 0.07
TRX 0.28
JST 0.047
BTC 66841.09
ETH 1963.73
USDT 1.00
SBD 0.46