z_mergetoaddress - Zcash 2.0.1 RPC

z_mergetoaddress ["fromaddress", ... ] "toaddress" ( fee ) ( transparent_limit ) ( shielded_limit ) ( memo )

WARNING: z_mergetoaddress is disabled.
To enable it, restart zcashd with the -experimentalfeatures and
-zmergetoaddress commandline options, or add these two lines
to the zcash.conf file:

experimentalfeatures=1
zmergetoaddress=1

Merge multiple UTXOs and notes into a single UTXO or note.  Coinbase UTXOs are ignored; use `z_shieldcoinbase`
to combine those into a single note.

This is an asynchronous operation, and UTXOs selected for merging will be locked.  If there is an error, they
are unlocked.  The RPC call `listlockunspent` can be used to return a list of locked UTXOs.

The number of UTXOs and notes selected for merging can be limited by the caller.  If the transparent limit
parameter is set to zero, and Overwinter is not yet active, the -mempooltxinputlimit option will determine the
number of UTXOs.  Any limit is constrained by the consensus rule defining a maximum transaction size of
100000 bytes before Sapling, and 2000000 bytes once Sapling activates.

Arguments:
1. fromaddresses         (string, required) A JSON array with addresses.
                         The following special strings are accepted inside the array:
                             - "*": Merge both UTXOs and notes from all addresses belonging to the wallet.
                             - "ANY_TADDR": Merge UTXOs from all t-addrs belonging to the wallet.
                             - "ANY_ZADDR": Merge notes from all z-addrs belonging to the wallet.
                         If a special string is given, any given addresses of that type will be ignored.
    [
      "address"          (string) Can be a t-addr or a z-addr
      ,...
    ]
2. "toaddress"           (string, required) The t-addr or z-addr to send the funds to.
3. fee                   (numeric, optional, default=0.0001) The fee amount to attach to this transaction.
4. transparent_limit     (numeric, optional, default=50) Limit on the maximum number of UTXOs to merge.  Set to 0 to use node option -mempooltxinputlimit (before Overwinter), or as many as will fit in the transaction (after Overwinter).
4. shielded_limit        (numeric, optional, default=10) Limit on the maximum number of notes to merge.  Set to 0 to merge as many as will fit in the transaction.
5. "memo"                (string, optional) Encoded as hex. When toaddress is a z-addr, this will be stored in the memo field of the new note.

Result:
{
  "remainingUTXOs": xxx               (numeric) Number of UTXOs still available for merging.
  "remainingTransparentValue": xxx    (numeric) Value of UTXOs still available for merging.
  "remainingNotes": xxx               (numeric) Number of notes still available for merging.
  "remainingShieldedValue": xxx       (numeric) Value of notes still available for merging.
  "mergingUTXOs": xxx                 (numeric) Number of UTXOs being merged.
  "mergingTransparentValue": xxx      (numeric) Value of UTXOs being merged.
  "mergingNotes": xxx                 (numeric) Number of notes being merged.
  "mergingShieldedValue": xxx         (numeric) Value of notes being merged.
  "opid": xxx          (string) An operationid to pass to z_getoperationstatus to get the result of the operation.
}

Examples:
> zcash-cli z_mergetoaddress '["t1M72Sfpbz1BPpXFHz9m3CdqATR44Jvaydd"]' ztfaW34Gj9FrnGUEf833ywDVL62NWXBM81u6EQnM6VR45eYnXhwztecW1SjxA7JrmAXKJhxhj3vDNEpVCQoSvVoSpmbhtjf
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "z_mergetoaddress", "params": [["t1M72Sfpbz1BPpXFHz9m3CdqATR44Jvaydd"], "ztfaW34Gj9FrnGUEf833ywDVL62NWXBM81u6EQnM6VR45eYnXhwztecW1SjxA7JrmAXKJhxhj3vDNEpVCQoSvVoSpmbhtjf"] }' -H 'content-type: text/plain;' http://127.0.0.1:8232/

Made by @karel_3d; license of the docs is MIT (see zcash repo), license of the scripts and webpage is also MIT ((C) 2018 Karel Bilek) (github repo)

Note it uses a mainnet node