curl -L -X GET 'https://bitcoinchainfees.strike.me/v1/fee-estimates'
{ "current_block_height": 883277, "current_block_hash": "00000000000000000000c4f231b07cb22cda9408cf0f736c01ee144aee9ed174", "fee_by_block_target": { "1": 4000, "3": 3000, "7": 2003 }, "min_relay_feerate": 2000 }