curl -L -X GET 'https://bitcoinchainfees.strike.me/v1/fee-estimates'
{
"current_block_height": 866889,
"current_block_hash": "00000000000000000001e97c403bde06f8af387f3cfac80624201591b7a23cb1",
"fee_by_block_target": {
"1": 19000,
"3": 18000,
"6": 17000,
"7": 15016,
"10": 14118,
"18": 13609,
"144": 2250
}
}