validateaddress

{                               (json object)
  "isvalid" : true|false,       (boolean) If the address is valid or not. If not, this is the only property returned.
  "address" : "str",            (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" : n,        (numeric, optional) The version number of the witness program
  "witness_program" : "hex"     (string, optional) The hex value of the witness program
}