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addmultisigaddress

addmultisigaddress nrequired [“key”,…] ( “label” “address_type” )

Add a nrequired-to-sign multisignature address to the wallet. Requires a new wallet backup. Each key is a Bitcoin address or hex-encoded public key. This functionality is only intended for use with non-watchonly addresses. See importaddress for watchonly p2sh address support. If ‘label’ is specified, assign address to that label.

Arguments:

  1. nrequired (numeric, required) The number of required signatures out of the n keys or addresses.
  2. keys (json array, required) A json array of bitcoin addresses or hex-encoded public keys [ “key”, (string) bitcoin address or hex-encoded public key … ]
  3. label (string, optional) A label to assign the addresses to.
  4. address_type (string, optional, default=set by -addresstype) The address type to use. Options are “legacy”, “p2sh-segwit”, and “bech32”.

Result: { “address”:“multisigaddress”, (string) The value of the new multisig address. “redeemScript”:“script” (string) The string value of the hex-encoded redemption script. }

Examples:

Add a multisig address from 2 addresses

bitcoin-cli addmultisigaddress 2 ”[“16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5”,“171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV”]”

As a JSON-RPC call

curl —user myusername —data-binary ’{“jsonrpc”: “1.0”, “id”:“curltest”, “method”: “addmultisigaddress”, “params”: [2, ”[“16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5”,“171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV”]”] }’ -H ‘content-type: text/plain;’ http://127.0.0.1:8332/