As far as I could read now the official BTC core installation supports RPC-Calls but you can get only the balance of your own accounts.
For transactions, you can use the RPC command
-getrawtransaction "TXID" true for any transaction as long as you add
-txindex in the config which will require additional space.
You might also need to add/start with -reindex if it's the first time you start with txindex.
For addresses' balance, you need something like the above posts.