curl -L -X GET 'https://bitcoinchainfees.strike.me/v1/fee-estimates'
{
"current_block_height": 910210,
"current_block_hash": "000000000000000000022a7d57ca06faf6add3a6174e07f228961e9d07bea2d3",
"fee_by_block_target": {
"1": 4000,
"6": 3000
},
"min_relay_feerate": 2000
}