curl -L -X GET 'https://bitcoinchainfees.strike.me/v1/fee-estimates'
{ "current_block_height": 890498, "current_block_hash": "0000000000000000000134ee99d08b390fc83679b0faf233169ac837e71a682b", "fee_by_block_target": { "1": 2000 }, "min_relay_feerate": 2000 }