curl -L -X GET 'https://bitcoinchainfees.strike.me/v1/fee-estimates'
{ "current_block_height": 893949, "current_block_hash": "00000000000000000000bdd163298d691180fca801d598a0259dfa30a16781a1", "fee_by_block_target": { "1": 2000 }, "min_relay_feerate": 2000 }