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 }