curl -L -X GET 'https://bitcoinchainfees.strike.me/v1/fee-estimates'
{ "current_block_height": 894018, "current_block_hash": "00000000000000000002032849a9406b7be3edfeff01944d0a865889cfdb5623", "fee_by_block_target": { "1": 3000 }, "min_relay_feerate": 2000 }