6毛就上高速，不用排队（21公司的API）

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绿色的就是最佳手续费，不用等待，立马纳入区块的。
每字节是60聪，按照每笔交易257字节计算，每笔交易交易费达到15，420聪。


Which fee should I use?

The fastest and cheapest transaction fee is currently 60 satoshis/byte, shown in green at the top.
For the median transaction size of 257 bytes, this results in a fee of 15,420 satoshis (0.09$).


https://bitcoinfees.21.co/