validateaddress "address"

Return information about the given bitcoin address.

Arguments:
1. address    (string, required) The bitcoin address to validate

Result:
{
  "isvalid" : true|false,       (boolean) If the address is valid or not. If not, this is the only property returned.
  "address" : "address",        (string) The bitcoin address validated
  "scriptPubKey" : "hex",       (string) The hex-encoded scriptPubKey generated by the address
  "isscript" : true|false,      (boolean) If the key is a script
  "iswitness" : true|false,     (boolean) If the address is a witness address
  "witness_version" : version   (numeric, optional) The version number of the witness program
  "witness_program" : "hex"     (string, optional) The hex value of the witness program
}

Examples:
> bitcoin-cli validateaddress "1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc"
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "validateaddress", "params": ["1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc"] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/

https://bitcoincore.org/en/doc/0.18.0/rpc/util/validateaddress/