I’m new to bitcoin and going through the documentation. Its not clear to me what URL should I send the RPC requests to interact with the blockchain? My understanding is that I should download Bitcoin Core and send requests to my own server to port 8332? Also, what if I wanted to make the request from a mobile app? Where should I send the requests to then or how would I go about that?
Doc says -> bitcoind
is more useful for programming: it provides a full peer which you can interact with through [RPCs](https://developer.bitcoin.org/reference/rpc/index.html) to port 8332 (or 18332 for testnet)