You can use cleos and pass as --url parameter a prodcer API endpoint instead of your localhost.
You can have a look here. https://www.eosdocs.io/resources/apiendpoints/
There is also a site specifically providing these services for free (as of time writing) https://dfuse.io/
example:
root@6cd7b4909963:/opt/eosio/bin# cleos --url
https://api.eosnewyork.io get info
{ "server_version": "1e9ca55c",
"chain_id":
"aca376f206b8fc25a6ed44dbdc66547c36c6c33e3a119ffbeaef943642f0e906",
"head_block_num": 23317888, "last_irreversible_block_num": 23317552,
"last_irreversible_block_id":
"0163cc30ca0fdfbc7d13ce126cc78e124d6673f6b6f8e625d42dc283745fffef",
"head_block_id":
"0163cd80788dac25b0e9f9c4e41836960fb49356f95130d37a4477b1ddac6e6c",
"head_block_time": "2018-10-24T18:01:29.500", "head_block_producer":
"eosswedenorg", "virtual_block_cpu_limit": 87353288,
"virtual_block_net_limit": 1048576000, "block_cpu_limit": 128460,
"block_net_limit": 1036696, "server_version_string": "v1.3.2" }