curl -L -X GET 'https://bitcoinchainfees.strike.me/v1/fee-estimates'
{
"current_block_height": 842785,
"current_block_hash": "00000000000000000000395da802a70562e3984f9f3d8b14f9d4baeabe2d03fc",
"fee_by_block_target": {
"1": 15000,
"6": 14000,
"144": 13007,
"288": 12299,
"720": 11973
}
}