curl -L -X GET 'https://bitcoinchainfees.strike.me/v1/fee-estimates'
{
"current_block_height": 901950,
"current_block_hash": "000000000000000000011fba5b288584abca1bf42bc63c46fd907a90312dac45",
"fee_by_block_target": {
"1": 4000,
"4": 3147,
"5": 3007,
"6": 2725,
"7": 2358,
"10": 2126,
"18": 2013
},
"min_relay_feerate": 2000
}