addmultisigaddress

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

Add an 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. Note: This command is only compatible with legacy wallets.

Arguments:

1. nrequired (numeric, required) The number of required signatures out of the n keys or addresses.
2. keys (json array, required) The 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: { (json object) “address” : “str”, (string) The value of the new multisig address “redeemScript” : “hex”, (string) The string value of the hex-encoded redemption script “descriptor” : “str”, (string) The descriptor for this multisig “warnings” : [ (json array, optional) Any warnings resulting from the creation of this multisig “str”, (string) … ] }

Examples:

Add a multisig address from 2 addresses

bitcoin-cli addmultisigaddress 2 ”[“bc1q09vm5lfy0j5reeulh4x5752q25uqqvz34hufdl”,“bc1q02ad21edsxd23d32dfgqqsz4vv4nmtfzuklhy3”]”

As a JSON-RPC call

curl —user myusername —data-binary ’{“jsonrpc”: “2.0”, “id”: “curltest”, “method”: “addmultisigaddress”, “params”: [2, ”[“bc1q09vm5lfy0j5reeulh4x5752q25uqqvz34hufdl”,“bc1q02ad21edsxd23d32dfgqqsz4vv4nmtfzuklhy3”]”]}’ -H ‘content-type: application/json’ http://127.0.0.1:8332/