curl -L -X GET 'https://bitcoinchainfees.strike.me/v1/fee-estimates'
{ "current_block_height": 903444, "current_block_hash": "000000000000000000023cc808509ba948788c4e690aca5f907717bc50914023", "fee_by_block_target": { "1": 3151, "3": 2252, "5": 2008 }, "min_relay_feerate": 2000 }