getconnectioncount
Returns the number of connections to other nodes.
Result:
n (numeric) The connection count
Examples:
> bitcoin-cli getconnectioncount
> curl --user myusername --data-binary '{"jsonrpc": "2.0", "id": "curltest", "method": "getconnectioncount", "params": []}' -H 'content-type: application/json' http://127.0.0.1:8332/