diff --git a/src/Makefile.am b/src/Makefile.am
index 5041ae2f1c..63332f9acd 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -98,7 +98,6 @@ BITCOIN_CORE_H = \
   ecwrapper.h \
   hash.h \
   init.h \
-  json_spirit_wrapper.h \
   key.h \
   keystore.h \
   leveldbwrapper.h \
diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp
index 9ad5fb6b1d..0cafd2b0b4 100644
--- a/src/bitcoin-cli.cpp
+++ b/src/bitcoin-cli.cpp
@@ -94,7 +94,7 @@ static bool AppInitRPC(int argc, char* argv[])
     return true;
 }
 
-Object CallRPC(const string& strMethod, const Array& params)
+UniValue CallRPC(const string& strMethod, const Array& params)
 {
     if (mapArgs["-rpcuser"] == "" && mapArgs["-rpcpassword"] == "")
         throw runtime_error(strprintf(
@@ -142,7 +142,7 @@ Object CallRPC(const string& strMethod, const Array& params)
         throw runtime_error("no response from server");
 
     // Parse reply
-    Value valReply(UniValue::VSTR);
+    UniValue valReply(UniValue::VSTR);
     if (!valReply.read(strReply))
         throw runtime_error("couldn't parse reply from server");
     const Object& reply = valReply.get_obj();
@@ -170,14 +170,13 @@ int CommandLineRPC(int argc, char *argv[])
 
         // Parameters default to strings
         std::vector<std::string> strParams(&argv[2], &argv[argc]);
-        Array params = RPCConvertValues(strMethod, strParams);
+        UniValue params = RPCConvertValues(strMethod, strParams);
 
         // Execute and handle connection failures with -rpcwait
         const bool fWait = GetBoolArg("-rpcwait", false);
         do {
             try {
-                // Execute
-                Object reply = CallRPC(strMethod, params);
+                const UniValue reply = CallRPC(strMethod, params);
 
                 // Parse reply
                 const Value& result = find_value(reply, "result");
diff --git a/src/json_spirit_wrapper.h b/src/json_spirit_wrapper.h
deleted file mode 100644
index 1962cf6431..0000000000
--- a/src/json_spirit_wrapper.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef __JSON_SPIRIT_WRAPPER_H__
-#define __JSON_SPIRIT_WRAPPER_H__
-
-#include "univalue/univalue.h"
-
-namespace json_spirit {
-
-typedef UniValue Value;
-typedef UniValue Array;
-typedef UniValue Object;
-typedef UniValue::VType Value_type;
-
-}
-
-#define find_value(val,key) (val[key])
-
-#endif // __JSON_SPIRIT_WRAPPER_H__
diff --git a/src/rest.cpp b/src/rest.cpp
index f3195746ba..3142b25036 100644
--- a/src/rest.cpp
+++ b/src/rest.cpp
@@ -62,7 +62,7 @@ public:
 };
 
 extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry);
-extern Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false);
+extern UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false);
 extern void ScriptPubKeyToJSON(const CScript& scriptPubKey, Object& out, bool fIncludeHex);
 
 static RestErr RESTERR(enum HTTPStatusCode status, string message)
@@ -221,7 +221,7 @@ static bool rest_block(AcceptedConnection* conn,
     }
 
     case RF_JSON: {
-        Object objBlock = blockToJSON(block, pblockindex, showTxDetails);
+        UniValue objBlock = blockToJSON(block, pblockindex, showTxDetails);
         string strJSON = objBlock.write() + "\n";
         conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush;
         return true;
@@ -266,7 +266,7 @@ static bool rest_chaininfo(AcceptedConnection* conn,
     switch (rf) {
     case RF_JSON: {
         UniValue rpcParams(UniValue::VARR);
-        Value chainInfoObject = getblockchaininfo(rpcParams, false);
+        UniValue chainInfoObject = getblockchaininfo(rpcParams, false);
         string strJSON = chainInfoObject.write() + "\n";
         conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush;
         return true;
diff --git a/src/rpcblockchain.cpp b/src/rpcblockchain.cpp
index facc112cb4..f20f9f994d 100644
--- a/src/rpcblockchain.cpp
+++ b/src/rpcblockchain.cpp
@@ -53,7 +53,7 @@ double GetDifficulty(const CBlockIndex* blockindex)
 }
 
 
-Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false)
+UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false)
 {
     UniValue result(UniValue::VOBJ);
     result.push_back(Pair("hash", block.GetHash().GetHex()));
@@ -94,7 +94,7 @@ Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDe
 }
 
 
-Value getblockcount(const Array& params, bool fHelp)
+UniValue getblockcount(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -111,7 +111,7 @@ Value getblockcount(const Array& params, bool fHelp)
     return chainActive.Height();
 }
 
-Value getbestblockhash(const Array& params, bool fHelp)
+UniValue getbestblockhash(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -128,7 +128,7 @@ Value getbestblockhash(const Array& params, bool fHelp)
     return chainActive.Tip()->GetBlockHash().GetHex();
 }
 
-Value getdifficulty(const Array& params, bool fHelp)
+UniValue getdifficulty(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -146,7 +146,7 @@ Value getdifficulty(const Array& params, bool fHelp)
 }
 
 
-Value getrawmempool(const Array& params, bool fHelp)
+UniValue getrawmempool(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 1)
         throw runtime_error(
@@ -231,7 +231,7 @@ Value getrawmempool(const Array& params, bool fHelp)
     }
 }
 
-Value getblockhash(const Array& params, bool fHelp)
+UniValue getblockhash(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
@@ -256,7 +256,7 @@ Value getblockhash(const Array& params, bool fHelp)
     return pblockindex->GetBlockHash().GetHex();
 }
 
-Value getblock(const Array& params, bool fHelp)
+UniValue getblock(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
@@ -324,7 +324,7 @@ Value getblock(const Array& params, bool fHelp)
     return blockToJSON(block, pblockindex);
 }
 
-Value gettxoutsetinfo(const Array& params, bool fHelp)
+UniValue gettxoutsetinfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -364,7 +364,7 @@ Value gettxoutsetinfo(const Array& params, bool fHelp)
     return ret;
 }
 
-Value gettxout(const Array& params, bool fHelp)
+UniValue gettxout(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 2 || params.size() > 3)
         throw runtime_error(
@@ -444,7 +444,7 @@ Value gettxout(const Array& params, bool fHelp)
     return ret;
 }
 
-Value verifychain(const Array& params, bool fHelp)
+UniValue verifychain(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 2)
         throw runtime_error(
@@ -472,7 +472,7 @@ Value verifychain(const Array& params, bool fHelp)
     return CVerifyDB().VerifyDB(pcoinsTip, nCheckLevel, nCheckDepth);
 }
 
-Value getblockchaininfo(const Array& params, bool fHelp)
+UniValue getblockchaininfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -530,7 +530,7 @@ struct CompareBlocksByHeight
     }
 };
 
-Value getchaintips(const Array& params, bool fHelp)
+UniValue getchaintips(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -620,7 +620,7 @@ Value getchaintips(const Array& params, bool fHelp)
     return res;
 }
 
-Value getmempoolinfo(const Array& params, bool fHelp)
+UniValue getmempoolinfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -643,7 +643,7 @@ Value getmempoolinfo(const Array& params, bool fHelp)
     return ret;
 }
 
-Value invalidateblock(const Array& params, bool fHelp)
+UniValue invalidateblock(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
@@ -681,7 +681,7 @@ Value invalidateblock(const Array& params, bool fHelp)
     return NullUniValue;
 }
 
-Value reconsiderblock(const Array& params, bool fHelp)
+UniValue reconsiderblock(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
diff --git a/src/rpcclient.cpp b/src/rpcclient.cpp
index aa6d1eff59..ec098a17a7 100644
--- a/src/rpcclient.cpp
+++ b/src/rpcclient.cpp
@@ -122,7 +122,7 @@ CRPCConvertTable::CRPCConvertTable()
 static CRPCConvertTable rpcCvtTable;
 
 /** Convert strings to command-specific RPC representation */
-Array RPCConvertValues(const std::string &strMethod, const std::vector<std::string> &strParams)
+UniValue RPCConvertValues(const std::string &strMethod, const std::vector<std::string> &strParams)
 {
     UniValue params(UniValue::VARR);
 
diff --git a/src/rpcclient.h b/src/rpcclient.h
index 29c1260272..52270aec74 100644
--- a/src/rpcclient.h
+++ b/src/rpcclient.h
@@ -6,8 +6,8 @@
 #ifndef BITCOIN_RPCCLIENT_H
 #define BITCOIN_RPCCLIENT_H
 
-#include "json_spirit_wrapper.h"
+#include "univalue/univalue.h"
 
-json_spirit::Array RPCConvertValues(const std::string& strMethod, const std::vector<std::string>& strParams);
+UniValue RPCConvertValues(const std::string& strMethod, const std::vector<std::string>& strParams);
 
 #endif // BITCOIN_RPCCLIENT_H
diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp
index c2ad75af69..89e20526ed 100644
--- a/src/rpcmining.cpp
+++ b/src/rpcmining.cpp
@@ -34,7 +34,7 @@ using namespace std;
  * or from the last difficulty change if 'lookup' is nonpositive.
  * If 'height' is nonnegative, compute the estimate at the time when a given block was found.
  */
-Value GetNetworkHashPS(int lookup, int height) {
+UniValue GetNetworkHashPS(int lookup, int height) {
     CBlockIndex *pb = chainActive.Tip();
 
     if (height >= 0 && height < chainActive.Height())
@@ -71,7 +71,7 @@ Value GetNetworkHashPS(int lookup, int height) {
     return (int64_t)(workDiff.getdouble() / timeDiff);
 }
 
-Value getnetworkhashps(const Array& params, bool fHelp)
+UniValue getnetworkhashps(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 2)
         throw runtime_error(
@@ -94,7 +94,7 @@ Value getnetworkhashps(const Array& params, bool fHelp)
 }
 
 #ifdef ENABLE_WALLET
-Value getgenerate(const Array& params, bool fHelp)
+UniValue getgenerate(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -113,7 +113,7 @@ Value getgenerate(const Array& params, bool fHelp)
     return GetBoolArg("-gen", false);
 }
 
-Value generate(const Array& params, bool fHelp)
+UniValue generate(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 1)
         throw runtime_error(
@@ -172,7 +172,7 @@ Value generate(const Array& params, bool fHelp)
 }
 
 
-Value setgenerate(const Array& params, bool fHelp)
+UniValue setgenerate(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
@@ -220,7 +220,7 @@ Value setgenerate(const Array& params, bool fHelp)
 #endif
 
 
-Value getmininginfo(const Array& params, bool fHelp)
+UniValue getmininginfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -266,7 +266,7 @@ Value getmininginfo(const Array& params, bool fHelp)
 
 
 // NOTE: Unlike wallet RPC (which use BTC values), mining RPCs follow GBT (BIP 22) in using satoshi amounts
-Value prioritisetransaction(const Array& params, bool fHelp)
+UniValue prioritisetransaction(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 3)
         throw runtime_error(
@@ -298,7 +298,7 @@ Value prioritisetransaction(const Array& params, bool fHelp)
 
 
 // NOTE: Assumes a conclusive result; if result is inconclusive, it must be handled by caller
-static Value BIP22ValidationResult(const CValidationState& state)
+static UniValue BIP22ValidationResult(const CValidationState& state)
 {
     if (state.IsValid())
         return Value::null;
@@ -316,7 +316,7 @@ static Value BIP22ValidationResult(const CValidationState& state)
     return "valid?";
 }
 
-Value getblocktemplate(const Array& params, bool fHelp)
+UniValue getblocktemplate(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 1)
         throw runtime_error(
@@ -381,7 +381,7 @@ Value getblocktemplate(const Array& params, bool fHelp)
     LOCK(cs_main);
 
     std::string strMode = "template";
-    Value lpval = NullUniValue;
+    UniValue lpval = NullUniValue;
     if (params.size() > 0)
     {
         const Object& oparam = params[0].get_obj();
@@ -605,7 +605,7 @@ protected:
     };
 };
 
-Value submitblock(const Array& params, bool fHelp)
+UniValue submitblock(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
@@ -666,7 +666,7 @@ Value submitblock(const Array& params, bool fHelp)
     return BIP22ValidationResult(state);
 }
 
-Value estimatefee(const Array& params, bool fHelp)
+UniValue estimatefee(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
@@ -698,7 +698,7 @@ Value estimatefee(const Array& params, bool fHelp)
     return ValueFromAmount(feeRate.GetFeePerK());
 }
 
-Value estimatepriority(const Array& params, bool fHelp)
+UniValue estimatepriority(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
diff --git a/src/rpcmisc.cpp b/src/rpcmisc.cpp
index 2d54b555b9..15bbe90bc7 100644
--- a/src/rpcmisc.cpp
+++ b/src/rpcmisc.cpp
@@ -38,7 +38,7 @@ using namespace std;
  *
  * Or alternatively, create a specific query method for the information.
  **/
-Value getinfo(const Array& params, bool fHelp)
+UniValue getinfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -115,9 +115,9 @@ private:
 public:
     DescribeAddressVisitor(isminetype mineIn) : mine(mineIn) {}
 
-    Object operator()(const CNoDestination &dest) const { return Object(); }
+    UniValue operator()(const CNoDestination &dest) const { return Object(); }
 
-    Object operator()(const CKeyID &keyID) const {
+    UniValue operator()(const CKeyID &keyID) const {
         UniValue obj(UniValue::VOBJ);
         CPubKey vchPubKey;
         obj.push_back(Pair("isscript", false));
@@ -129,7 +129,7 @@ public:
         return obj;
     }
 
-    Object operator()(const CScriptID &scriptID) const {
+    UniValue operator()(const CScriptID &scriptID) const {
         UniValue obj(UniValue::VOBJ);
         obj.push_back(Pair("isscript", true));
         if (mine != ISMINE_NO) {
@@ -153,7 +153,7 @@ public:
 };
 #endif
 
-Value validateaddress(const Array& params, bool fHelp)
+UniValue validateaddress(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
@@ -202,7 +202,7 @@ Value validateaddress(const Array& params, bool fHelp)
         ret.push_back(Pair("ismine", (mine & ISMINE_SPENDABLE) ? true : false));
         if (mine != ISMINE_NO) {
             ret.push_back(Pair("iswatchonly", (mine & ISMINE_WATCH_ONLY) ? true: false));
-            Object detail = boost::apply_visitor(DescribeAddressVisitor(mine), dest);
+            UniValue detail = boost::apply_visitor(DescribeAddressVisitor(mine), dest);
             ret.pushKVs(detail);
         }
         if (pwalletMain && pwalletMain->mapAddressBook.count(dest))
@@ -276,7 +276,7 @@ CScript _createmultisig_redeemScript(const Array& params)
     return result;
 }
 
-Value createmultisig(const Array& params, bool fHelp)
+UniValue createmultisig(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 2 || params.size() > 2)
     {
@@ -319,7 +319,7 @@ Value createmultisig(const Array& params, bool fHelp)
     return result;
 }
 
-Value verifymessage(const Array& params, bool fHelp)
+UniValue verifymessage(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 3)
         throw runtime_error(
@@ -373,7 +373,7 @@ Value verifymessage(const Array& params, bool fHelp)
     return (pubkey.GetID() == keyID);
 }
 
-Value setmocktime(const Array& params, bool fHelp)
+UniValue setmocktime(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
diff --git a/src/rpcnet.cpp b/src/rpcnet.cpp
index d8dd46e64e..17eda22451 100644
--- a/src/rpcnet.cpp
+++ b/src/rpcnet.cpp
@@ -21,7 +21,7 @@
 using namespace json_spirit;
 using namespace std;
 
-Value getconnectioncount(const Array& params, bool fHelp)
+UniValue getconnectioncount(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -39,7 +39,7 @@ Value getconnectioncount(const Array& params, bool fHelp)
     return (int)vNodes.size();
 }
 
-Value ping(const Array& params, bool fHelp)
+UniValue ping(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -75,7 +75,7 @@ static void CopyNodeStats(std::vector<CNodeStats>& vstats)
     }
 }
 
-Value getpeerinfo(const Array& params, bool fHelp)
+UniValue getpeerinfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
@@ -165,7 +165,7 @@ Value getpeerinfo(const Array& params, bool fHelp)
     return ret;
 }
 
-Value addnode(const Array& params, bool fHelp)
+UniValue addnode(const Array& params, bool fHelp)
 {
     string strCommand;
     if (params.size() == 2)
@@ -215,7 +215,7 @@ Value addnode(const Array& params, bool fHelp)
     return NullUniValue;
 }
 
-Value getaddednodeinfo(const Array& params, bool fHelp)
+UniValue getaddednodeinfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
@@ -332,7 +332,7 @@ Value getaddednodeinfo(const Array& params, bool fHelp)
     return ret;
 }
 
-Value getnettotals(const Array& params, bool fHelp)
+UniValue getnettotals(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 0)
         throw runtime_error(
@@ -357,7 +357,7 @@ Value getnettotals(const Array& params, bool fHelp)
     return obj;
 }
 
-static Array GetNetworksInfo()
+static UniValue GetNetworksInfo()
 {
     UniValue networks(UniValue::VARR);
     for(int n=0; n<NET_MAX; ++n)
@@ -378,7 +378,7 @@ static Array GetNetworksInfo()
     return networks;
 }
 
-Value getnetworkinfo(const Array& params, bool fHelp)
+UniValue getnetworkinfo(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 0)
         throw runtime_error(
diff --git a/src/rpcprotocol.cpp b/src/rpcprotocol.cpp
index 9b422894ef..953e476022 100644
--- a/src/rpcprotocol.cpp
+++ b/src/rpcprotocol.cpp
@@ -256,7 +256,7 @@ int ReadHTTPMessage(std::basic_istream<char>& stream, map<string,
 
 string JSONRPCRequest(const string& strMethod, const Array& params, const Value& id)
 {
-    Object request(UniValue::VOBJ);
+    UniValue request(UniValue::VOBJ);
     request.push_back(Pair("method", strMethod));
     request.push_back(Pair("params", params));
     request.push_back(Pair("id", id));
@@ -265,7 +265,7 @@ string JSONRPCRequest(const string& strMethod, const Array& params, const Value&
 
 Object JSONRPCReplyObj(const Value& result, const Value& error, const Value& id)
 {
-    Object reply(UniValue::VOBJ);
+    UniValue reply(UniValue::VOBJ);
     if (!error.isNull())
         reply.push_back(Pair("result", NullUniValue));
     else
@@ -277,11 +277,11 @@ Object JSONRPCReplyObj(const Value& result, const Value& error, const Value& id)
 
 string JSONRPCReply(const Value& result, const Value& error, const Value& id)
 {
-    Object reply = JSONRPCReplyObj(result, error, id);
+    UniValue reply = JSONRPCReplyObj(result, error, id);
     return reply.write() + "\n";
 }
 
-Object JSONRPCError(int code, const string& message)
+UniValue JSONRPCError(int code, const string& message)
 {
     UniValue error(UniValue::VOBJ);
     error.push_back(Pair("code", code));
diff --git a/src/rpcprotocol.h b/src/rpcprotocol.h
index 496e19ed53..83d6123c56 100644
--- a/src/rpcprotocol.h
+++ b/src/rpcprotocol.h
@@ -158,9 +158,9 @@ int ReadHTTPStatus(std::basic_istream<char>& stream, int &proto);
 int ReadHTTPHeaders(std::basic_istream<char>& stream, std::map<std::string, std::string>& mapHeadersRet);
 int ReadHTTPMessage(std::basic_istream<char>& stream, std::map<std::string, std::string>& mapHeadersRet,
                     std::string& strMessageRet, int nProto, size_t max_size);
-std::string JSONRPCRequest(const std::string& strMethod, const json_spirit::Array& params, const json_spirit::Value& id);
-json_spirit::Object JSONRPCReplyObj(const json_spirit::Value& result, const json_spirit::Value& error, const json_spirit::Value& id);
-std::string JSONRPCReply(const json_spirit::Value& result, const json_spirit::Value& error, const json_spirit::Value& id);
-json_spirit::Object JSONRPCError(int code, const std::string& message);
+std::string JSONRPCRequest(const std::string& strMethod, const UniValue& params, const UniValue& id);
+UniValue JSONRPCReplyObj(const UniValue& result, const UniValue& error, const UniValue& id);
+std::string JSONRPCReply(const UniValue& result, const UniValue& error, const UniValue& id);
+UniValue JSONRPCError(int code, const std::string& message);
 
 #endif // BITCOIN_RPCPROTOCOL_H
diff --git a/src/rpcrawtransaction.cpp b/src/rpcrawtransaction.cpp
index 5467f6df88..b4ddbfebf3 100644
--- a/src/rpcrawtransaction.cpp
+++ b/src/rpcrawtransaction.cpp
@@ -105,7 +105,7 @@ void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry)
     }
 }
 
-Value getrawtransaction(const Array& params, bool fHelp)
+UniValue getrawtransaction(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
@@ -195,7 +195,7 @@ Value getrawtransaction(const Array& params, bool fHelp)
     return result;
 }
 
-Value gettxoutproof(const Array& params, bool fHelp)
+UniValue gettxoutproof(const Array& params, bool fHelp)
 {
     if (fHelp || (params.size() != 1 && params.size() != 2))
         throw runtime_error(
@@ -219,7 +219,7 @@ Value gettxoutproof(const Array& params, bool fHelp)
 
     set<uint256> setTxids;
     uint256 oneTxid;
-    Array txids = params[0].get_array();
+    UniValue txids = params[0].get_array();
     for (unsigned int idx = 0; idx < txids.size(); idx++) {
         const Value& txid = txids[idx];
         if (txid.get_str().length() != 64 || !IsHex(txid.get_str()))
@@ -276,7 +276,7 @@ Value gettxoutproof(const Array& params, bool fHelp)
     return strHex;
 }
 
-Value verifytxoutproof(const Array& params, bool fHelp)
+UniValue verifytxoutproof(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
@@ -309,7 +309,7 @@ Value verifytxoutproof(const Array& params, bool fHelp)
     return res;
 }
 
-Value createrawtransaction(const Array& params, bool fHelp)
+UniValue createrawtransaction(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 2)
         throw runtime_error(
@@ -345,8 +345,8 @@ Value createrawtransaction(const Array& params, bool fHelp)
     LOCK(cs_main);
     RPCTypeCheck(params, boost::assign::list_of(UniValue::VARR)(UniValue::VOBJ));
 
-    Array inputs = params[0].get_array();
-    Object sendTo = params[1].get_obj();
+    UniValue inputs = params[0].get_array();
+    UniValue sendTo = params[1].get_obj();
 
     CMutableTransaction rawTx;
 
@@ -388,7 +388,7 @@ Value createrawtransaction(const Array& params, bool fHelp)
     return EncodeHexTx(rawTx);
 }
 
-Value decoderawtransaction(const Array& params, bool fHelp)
+UniValue decoderawtransaction(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
@@ -453,7 +453,7 @@ Value decoderawtransaction(const Array& params, bool fHelp)
     return result;
 }
 
-Value decodescript(const Array& params, bool fHelp)
+UniValue decodescript(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
         throw runtime_error(
@@ -507,7 +507,7 @@ static void TxInErrorToJSON(const CTxIn& txin, Array& vErrorsRet, const std::str
     vErrorsRet.push_back(entry);
 }
 
-Value signrawtransaction(const Array& params, bool fHelp)
+UniValue signrawtransaction(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 4)
         throw runtime_error(
@@ -617,9 +617,9 @@ Value signrawtransaction(const Array& params, bool fHelp)
     CBasicKeyStore tempKeystore;
     if (params.size() > 2 && !params[2].isNull()) {
         fGivenKeys = true;
-        Array keys = params[2].get_array();
+        UniValue keys = params[2].get_array();
         for (unsigned int idx = 0; idx < keys.size(); idx++) {
-            Value k = keys[idx];
+            UniValue k = keys[idx];
             CBitcoinSecret vchSecret;
             bool fGood = vchSecret.SetString(k.get_str());
             if (!fGood)
@@ -637,13 +637,13 @@ Value signrawtransaction(const Array& params, bool fHelp)
 
     // Add previous txouts given in the RPC call:
     if (params.size() > 1 && !params[1].isNull()) {
-        Array prevTxs = params[1].get_array();
+        UniValue prevTxs = params[1].get_array();
         for (unsigned int idx = 0; idx < prevTxs.size(); idx++) {
             const Value& p = prevTxs[idx];
             if (!p.isObject())
                 throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "expected object with {\"txid'\",\"vout\",\"scriptPubKey\"}");
 
-            Object prevOut = p.get_obj();
+            UniValue prevOut = p.get_obj();
 
             RPCTypeCheckObj(prevOut, boost::assign::map_list_of("txid", UniValue::VSTR)("vout", UniValue::VNUM)("scriptPubKey", UniValue::VSTR));
 
@@ -674,7 +674,7 @@ Value signrawtransaction(const Array& params, bool fHelp)
             // given), add redeemScript to the tempKeystore so it can be signed:
             if (fGivenKeys && scriptPubKey.IsPayToScriptHash()) {
                 RPCTypeCheckObj(prevOut, boost::assign::map_list_of("txid", UniValue::VSTR)("vout", UniValue::VNUM)("scriptPubKey", UniValue::VSTR)("redeemScript",UniValue::VSTR));
-                Value v = find_value(prevOut, "redeemScript");
+                UniValue v = find_value(prevOut, "redeemScript");
                 if (!v.isNull()) {
                     vector<unsigned char> rsData(ParseHexV(v, "redeemScript"));
                     CScript redeemScript(rsData.begin(), rsData.end());
@@ -749,7 +749,7 @@ Value signrawtransaction(const Array& params, bool fHelp)
     return result;
 }
 
-Value sendrawtransaction(const Array& params, bool fHelp)
+UniValue sendrawtransaction(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index 3a54f1670b..cb746508b1 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -135,7 +135,7 @@ CAmount AmountFromValue(const Value& value)
     return nAmount;
 }
 
-Value ValueFromAmount(const CAmount& amount)
+UniValue ValueFromAmount(const CAmount& amount)
 {
     return (double)amount / (double)COIN;
 }
@@ -196,7 +196,7 @@ string CRPCTable::help(string strCommand) const
             continue;
         try
         {
-            Array params;
+            UniValue params;
             rpcfn_type pfn = pcmd->actor;
             if (setDone.insert(pfn).second)
                 (*pfn)(params, true);
@@ -229,7 +229,7 @@ string CRPCTable::help(string strCommand) const
     return strRet;
 }
 
-Value help(const Array& params, bool fHelp)
+UniValue help(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() > 1)
         throw runtime_error(
@@ -249,7 +249,7 @@ Value help(const Array& params, bool fHelp)
 }
 
 
-Value stop(const Array& params, bool fHelp)
+UniValue stop(const Array& params, bool fHelp)
 {
     // Accept the deprecated and ignored 'detach' boolean argument
     if (fHelp || params.size() > 1)
@@ -825,9 +825,9 @@ void RPCRunLater(const std::string& name, boost::function<void(void)> func, int6
 class JSONRequest
 {
 public:
-    Value id;
+    UniValue id;
     string strMethod;
-    Array params;
+    UniValue params;
 
     JSONRequest() { id = NullUniValue; }
     void parse(const Value& valRequest);
@@ -844,7 +844,7 @@ void JSONRequest::parse(const Value& valRequest)
     id = find_value(request, "id");
 
     // Parse method
-    Value valMethod = find_value(request, "method");
+    UniValue valMethod = find_value(request, "method");
     if (valMethod.isNull())
         throw JSONRPCError(RPC_INVALID_REQUEST, "Missing method");
     if (!valMethod.isStr())
@@ -854,7 +854,7 @@ void JSONRequest::parse(const Value& valRequest)
         LogPrint("rpc", "ThreadRPCServer method=%s\n", SanitizeString(strMethod));
 
     // Parse params
-    Value valParams = find_value(request, "params");
+    UniValue valParams = find_value(request, "params");
     if (valParams.isArray())
         params = valParams.get_array();
     else if (valParams.isNull())
@@ -864,7 +864,7 @@ void JSONRequest::parse(const Value& valRequest)
 }
 
 
-static Object JSONRPCExecOne(const Value& req)
+static UniValue JSONRPCExecOne(const Value& req)
 {
     UniValue rpc_result(UniValue::VOBJ);
 
@@ -872,7 +872,7 @@ static Object JSONRPCExecOne(const Value& req)
     try {
         jreq.parse(req);
 
-        Value result = tableRPC.execute(jreq.strMethod, jreq.params);
+        UniValue result = tableRPC.execute(jreq.strMethod, jreq.params);
         rpc_result = JSONRPCReplyObj(result, NullUniValue, jreq.id);
     }
     catch (const Object& objError)
@@ -890,7 +890,7 @@ static Object JSONRPCExecOne(const Value& req)
 
 static string JSONRPCExecBatch(const Array& vReq)
 {
-    Array ret;
+    UniValue ret;
     for (unsigned int reqIdx = 0; reqIdx < vReq.size(); reqIdx++)
         ret.push_back(JSONRPCExecOne(vReq[reqIdx]));
 
@@ -925,7 +925,7 @@ static bool HTTPReq_JSONRPC(AcceptedConnection *conn,
     try
     {
         // Parse request
-        Value valRequest;
+        UniValue valRequest;
         if (!valRequest.read(strRequest))
             throw JSONRPCError(RPC_PARSE_ERROR, "Parse error");
 
@@ -942,7 +942,7 @@ static bool HTTPReq_JSONRPC(AcceptedConnection *conn,
         if (valRequest.isObject()) {
             jreq.parse(valRequest);
 
-            Value result = tableRPC.execute(jreq.strMethod, jreq.params);
+            UniValue result = tableRPC.execute(jreq.strMethod, jreq.params);
 
             // Send reply
             strReply = JSONRPCReply(result, NullUniValue, jreq.id);
@@ -1005,7 +1005,7 @@ void ServiceConnection(AcceptedConnection *conn)
     }
 }
 
-json_spirit::Value CRPCTable::execute(const std::string &strMethod, const json_spirit::Array &params) const
+UniValue CRPCTable::execute(const std::string &strMethod, const UniValue &params) const
 {
     // Find method
     const CRPCCommand *pcmd = tableRPC[strMethod];
diff --git a/src/rpcserver.h b/src/rpcserver.h
index c9982bb8ca..e2bc8c0955 100644
--- a/src/rpcserver.h
+++ b/src/rpcserver.h
@@ -70,8 +70,8 @@ bool RPCIsInWarmup(std::string *statusOut);
  * the right number of arguments are passed, just that any passed are the correct type.
  * Use like:  RPCTypeCheck(params, boost::assign::list_of(str_type)(int_type)(obj_type));
  */
-void RPCTypeCheck(const json_spirit::Array& params,
-                  const std::list<json_spirit::Value_type>& typesExpected, bool fAllowNull=false);
+void RPCTypeCheck(const UniValue& params,
+                  const std::list<UniValue::VType>& typesExpected, bool fAllowNull=false);
 
 /*
   Check for expected keys/value types in an Object.
@@ -89,7 +89,7 @@ void RPCRunLater(const std::string& name, boost::function<void(void)> func, int6
 //! Convert boost::asio address to CNetAddr
 extern CNetAddr BoostAsioToCNetAddr(boost::asio::ip::address address);
 
-typedef json_spirit::Value(*rpcfn_type)(const json_spirit::Array& params, bool fHelp);
+typedef UniValue(*rpcfn_type)(const UniValue& params, bool fHelp);
 
 class CRPCCommand
 {
@@ -115,11 +115,11 @@ public:
     /**
      * Execute a method.
      * @param method   Method to execute
-     * @param params   Array of arguments (JSON objects)
+     * @param params   UniValue Array of arguments (JSON objects)
      * @returns Result of the call.
-     * @throws an exception (json_spirit::Value) when an error happens.
+     * @throws an exception (UniValue) when an error happens.
      */
-    json_spirit::Value execute(const std::string &method, const json_spirit::Array &params) const;
+    UniValue execute(const std::string &method, const UniValue &params) const;
 };
 
 extern const CRPCTable tableRPC;
@@ -128,17 +128,17 @@ extern const CRPCTable tableRPC;
  * Utilities: convert hex-encoded Values
  * (throws error if not hex).
  */
-extern uint256 ParseHashV(const json_spirit::Value& v, std::string strName);
-extern uint256 ParseHashO(const json_spirit::Object& o, std::string strKey);
-extern std::vector<unsigned char> ParseHexV(const json_spirit::Value& v, std::string strName);
-extern std::vector<unsigned char> ParseHexO(const json_spirit::Object& o, std::string strKey);
+extern uint256 ParseHashV(const UniValue& v, std::string strName);
+extern uint256 ParseHashO(const UniValue& o, std::string strKey);
+extern std::vector<unsigned char> ParseHexV(const UniValue& v, std::string strName);
+extern std::vector<unsigned char> ParseHexO(const UniValue& o, std::string strKey);
 
 extern void InitRPCMining();
 extern void ShutdownRPCMining();
 
 extern int64_t nWalletUnlockTime;
-extern CAmount AmountFromValue(const json_spirit::Value& value);
-extern json_spirit::Value ValueFromAmount(const CAmount& amount);
+extern CAmount AmountFromValue(const UniValue& value);
+extern UniValue ValueFromAmount(const CAmount& amount);
 extern double GetDifficulty(const CBlockIndex* blockindex = NULL);
 extern std::string HelpRequiringPassphrase();
 extern std::string HelpExampleCli(std::string methodname, std::string args);
@@ -146,95 +146,95 @@ extern std::string HelpExampleRpc(std::string methodname, std::string args);
 
 extern void EnsureWalletIsUnlocked();
 
-extern json_spirit::Value getconnectioncount(const json_spirit::Array& params, bool fHelp); // in rpcnet.cpp
-extern json_spirit::Value getpeerinfo(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value ping(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value addnode(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getaddednodeinfo(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getnettotals(const json_spirit::Array& params, bool fHelp);
+extern UniValue getconnectioncount(const UniValue& params, bool fHelp); // in rpcnet.cpp
+extern UniValue getpeerinfo(const UniValue& params, bool fHelp);
+extern UniValue ping(const UniValue& params, bool fHelp);
+extern UniValue addnode(const UniValue& params, bool fHelp);
+extern UniValue getaddednodeinfo(const UniValue& params, bool fHelp);
+extern UniValue getnettotals(const UniValue& params, bool fHelp);
 
-extern json_spirit::Value dumpprivkey(const json_spirit::Array& params, bool fHelp); // in rpcdump.cpp
-extern json_spirit::Value importprivkey(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value importaddress(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value dumpwallet(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value importwallet(const json_spirit::Array& params, bool fHelp);
+extern UniValue dumpprivkey(const UniValue& params, bool fHelp); // in rpcdump.cpp
+extern UniValue importprivkey(const UniValue& params, bool fHelp);
+extern UniValue importaddress(const UniValue& params, bool fHelp);
+extern UniValue dumpwallet(const UniValue& params, bool fHelp);
+extern UniValue importwallet(const UniValue& params, bool fHelp);
 
-extern json_spirit::Value getgenerate(const json_spirit::Array& params, bool fHelp); // in rpcmining.cpp
-extern json_spirit::Value setgenerate(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value generate(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getnetworkhashps(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getmininginfo(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value prioritisetransaction(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getblocktemplate(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value submitblock(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value estimatefee(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value estimatepriority(const json_spirit::Array& params, bool fHelp);
+extern UniValue getgenerate(const UniValue& params, bool fHelp); // in rpcmining.cpp
+extern UniValue setgenerate(const UniValue& params, bool fHelp);
+extern UniValue generate(const UniValue& params, bool fHelp);
+extern UniValue getnetworkhashps(const UniValue& params, bool fHelp);
+extern UniValue getmininginfo(const UniValue& params, bool fHelp);
+extern UniValue prioritisetransaction(const UniValue& params, bool fHelp);
+extern UniValue getblocktemplate(const UniValue& params, bool fHelp);
+extern UniValue submitblock(const UniValue& params, bool fHelp);
+extern UniValue estimatefee(const UniValue& params, bool fHelp);
+extern UniValue estimatepriority(const UniValue& params, bool fHelp);
 
-extern json_spirit::Value getnewaddress(const json_spirit::Array& params, bool fHelp); // in rpcwallet.cpp
-extern json_spirit::Value getaccountaddress(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getrawchangeaddress(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value setaccount(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getaccount(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getaddressesbyaccount(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value sendtoaddress(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value signmessage(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value verifymessage(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getreceivedbyaddress(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getreceivedbyaccount(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getbalance(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getunconfirmedbalance(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value movecmd(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value sendfrom(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value sendmany(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value addmultisigaddress(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value createmultisig(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value listreceivedbyaddress(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value listreceivedbyaccount(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value listtransactions(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value listaddressgroupings(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value listaccounts(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value listsinceblock(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value gettransaction(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value backupwallet(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value keypoolrefill(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value walletpassphrase(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value walletpassphrasechange(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value walletlock(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value encryptwallet(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value validateaddress(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getinfo(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getwalletinfo(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getblockchaininfo(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getnetworkinfo(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value setmocktime(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value resendwallettransactions(const json_spirit::Array& params, bool fHelp);
+extern UniValue getnewaddress(const UniValue& params, bool fHelp); // in rpcwallet.cpp
+extern UniValue getaccountaddress(const UniValue& params, bool fHelp);
+extern UniValue getrawchangeaddress(const UniValue& params, bool fHelp);
+extern UniValue setaccount(const UniValue& params, bool fHelp);
+extern UniValue getaccount(const UniValue& params, bool fHelp);
+extern UniValue getaddressesbyaccount(const UniValue& params, bool fHelp);
+extern UniValue sendtoaddress(const UniValue& params, bool fHelp);
+extern UniValue signmessage(const UniValue& params, bool fHelp);
+extern UniValue verifymessage(const UniValue& params, bool fHelp);
+extern UniValue getreceivedbyaddress(const UniValue& params, bool fHelp);
+extern UniValue getreceivedbyaccount(const UniValue& params, bool fHelp);
+extern UniValue getbalance(const UniValue& params, bool fHelp);
+extern UniValue getunconfirmedbalance(const UniValue& params, bool fHelp);
+extern UniValue movecmd(const UniValue& params, bool fHelp);
+extern UniValue sendfrom(const UniValue& params, bool fHelp);
+extern UniValue sendmany(const UniValue& params, bool fHelp);
+extern UniValue addmultisigaddress(const UniValue& params, bool fHelp);
+extern UniValue createmultisig(const UniValue& params, bool fHelp);
+extern UniValue listreceivedbyaddress(const UniValue& params, bool fHelp);
+extern UniValue listreceivedbyaccount(const UniValue& params, bool fHelp);
+extern UniValue listtransactions(const UniValue& params, bool fHelp);
+extern UniValue listaddressgroupings(const UniValue& params, bool fHelp);
+extern UniValue listaccounts(const UniValue& params, bool fHelp);
+extern UniValue listsinceblock(const UniValue& params, bool fHelp);
+extern UniValue gettransaction(const UniValue& params, bool fHelp);
+extern UniValue backupwallet(const UniValue& params, bool fHelp);
+extern UniValue keypoolrefill(const UniValue& params, bool fHelp);
+extern UniValue walletpassphrase(const UniValue& params, bool fHelp);
+extern UniValue walletpassphrasechange(const UniValue& params, bool fHelp);
+extern UniValue walletlock(const UniValue& params, bool fHelp);
+extern UniValue encryptwallet(const UniValue& params, bool fHelp);
+extern UniValue validateaddress(const UniValue& params, bool fHelp);
+extern UniValue getinfo(const UniValue& params, bool fHelp);
+extern UniValue getwalletinfo(const UniValue& params, bool fHelp);
+extern UniValue getblockchaininfo(const UniValue& params, bool fHelp);
+extern UniValue getnetworkinfo(const UniValue& params, bool fHelp);
+extern UniValue setmocktime(const UniValue& params, bool fHelp);
+extern UniValue resendwallettransactions(const UniValue& params, bool fHelp);
 
-extern json_spirit::Value getrawtransaction(const json_spirit::Array& params, bool fHelp); // in rcprawtransaction.cpp
-extern json_spirit::Value listunspent(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value lockunspent(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value listlockunspent(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value createrawtransaction(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value decoderawtransaction(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value decodescript(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value signrawtransaction(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value sendrawtransaction(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value gettxoutproof(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value verifytxoutproof(const json_spirit::Array& params, bool fHelp);
+extern UniValue getrawtransaction(const UniValue& params, bool fHelp); // in rcprawtransaction.cpp
+extern UniValue listunspent(const UniValue& params, bool fHelp);
+extern UniValue lockunspent(const UniValue& params, bool fHelp);
+extern UniValue listlockunspent(const UniValue& params, bool fHelp);
+extern UniValue createrawtransaction(const UniValue& params, bool fHelp);
+extern UniValue decoderawtransaction(const UniValue& params, bool fHelp);
+extern UniValue decodescript(const UniValue& params, bool fHelp);
+extern UniValue signrawtransaction(const UniValue& params, bool fHelp);
+extern UniValue sendrawtransaction(const UniValue& params, bool fHelp);
+extern UniValue gettxoutproof(const UniValue& params, bool fHelp);
+extern UniValue verifytxoutproof(const UniValue& params, bool fHelp);
 
-extern json_spirit::Value getblockcount(const json_spirit::Array& params, bool fHelp); // in rpcblockchain.cpp
-extern json_spirit::Value getbestblockhash(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getdifficulty(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value settxfee(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getmempoolinfo(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getrawmempool(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getblockhash(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getblock(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value gettxoutsetinfo(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value gettxout(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value verifychain(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value getchaintips(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value invalidateblock(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value reconsiderblock(const json_spirit::Array& params, bool fHelp);
+extern UniValue getblockcount(const UniValue& params, bool fHelp); // in rpcblockchain.cpp
+extern UniValue getbestblockhash(const UniValue& params, bool fHelp);
+extern UniValue getdifficulty(const UniValue& params, bool fHelp);
+extern UniValue settxfee(const UniValue& params, bool fHelp);
+extern UniValue getmempoolinfo(const UniValue& params, bool fHelp);
+extern UniValue getrawmempool(const UniValue& params, bool fHelp);
+extern UniValue getblockhash(const UniValue& params, bool fHelp);
+extern UniValue getblock(const UniValue& params, bool fHelp);
+extern UniValue gettxoutsetinfo(const UniValue& params, bool fHelp);
+extern UniValue gettxout(const UniValue& params, bool fHelp);
+extern UniValue verifychain(const UniValue& params, bool fHelp);
+extern UniValue getchaintips(const UniValue& params, bool fHelp);
+extern UniValue invalidateblock(const UniValue& params, bool fHelp);
+extern UniValue reconsiderblock(const UniValue& params, bool fHelp);
 
 // in rest.cpp
 extern bool HTTPReq_REST(AcceptedConnection *conn,
diff --git a/src/test/base58_tests.cpp b/src/test/base58_tests.cpp
index a806fe7b05..114bd79ea9 100644
--- a/src/test/base58_tests.cpp
+++ b/src/test/base58_tests.cpp
@@ -20,16 +20,16 @@
 #include "json_spirit_wrapper.h"
 
 using namespace json_spirit;
-extern Array read_json(const std::string& jsondata);
+extern UniValue read_json(const std::string& jsondata);
 
 BOOST_FIXTURE_TEST_SUITE(base58_tests, BasicTestingSetup)
 
 // Goal: test low-level base58 encoding functionality
 BOOST_AUTO_TEST_CASE(base58_EncodeBase58)
 {
-    Array tests = read_json(std::string(json_tests::base58_encode_decode, json_tests::base58_encode_decode + sizeof(json_tests::base58_encode_decode)));
+    UniValue tests = read_json(std::string(json_tests::base58_encode_decode, json_tests::base58_encode_decode + sizeof(json_tests::base58_encode_decode)));
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         std::string strTest = test.write();
         if (test.size() < 2) // Allow for extra stuff (useful for comments)
         {
@@ -47,11 +47,11 @@ BOOST_AUTO_TEST_CASE(base58_EncodeBase58)
 // Goal: test low-level base58 decoding functionality
 BOOST_AUTO_TEST_CASE(base58_DecodeBase58)
 {
-    Array tests = read_json(std::string(json_tests::base58_encode_decode, json_tests::base58_encode_decode + sizeof(json_tests::base58_encode_decode)));
+    UniValue tests = read_json(std::string(json_tests::base58_encode_decode, json_tests::base58_encode_decode + sizeof(json_tests::base58_encode_decode)));
     std::vector<unsigned char> result;
 
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         std::string strTest = test.write();
         if (test.size() < 2) // Allow for extra stuff (useful for comments)
         {
@@ -120,14 +120,14 @@ public:
 // Goal: check that parsed keys match test payload
 BOOST_AUTO_TEST_CASE(base58_keys_valid_parse)
 {
-    Array tests = read_json(std::string(json_tests::base58_keys_valid, json_tests::base58_keys_valid + sizeof(json_tests::base58_keys_valid)));
+    UniValue tests = read_json(std::string(json_tests::base58_keys_valid, json_tests::base58_keys_valid + sizeof(json_tests::base58_keys_valid)));
     std::vector<unsigned char> result;
     CBitcoinSecret secret;
     CBitcoinAddress addr;
     SelectParams(CBaseChainParams::MAIN);
 
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         std::string strTest = test.write();
         if (test.size() < 3) // Allow for extra stuff (useful for comments)
         {
@@ -136,7 +136,7 @@ BOOST_AUTO_TEST_CASE(base58_keys_valid_parse)
         }
         std::string exp_base58string = test[0].get_str();
         std::vector<unsigned char> exp_payload = ParseHex(test[1].get_str());
-        const Object &metadata = test[2].get_obj();
+        const UniValue &metadata = test[2].get_obj();
         bool isPrivkey = find_value(metadata, "isPrivkey").get_bool();
         bool isTestnet = find_value(metadata, "isTestnet").get_bool();
         if (isTestnet)
@@ -178,11 +178,11 @@ BOOST_AUTO_TEST_CASE(base58_keys_valid_parse)
 // Goal: check that generated keys match test vectors
 BOOST_AUTO_TEST_CASE(base58_keys_valid_gen)
 {
-    Array tests = read_json(std::string(json_tests::base58_keys_valid, json_tests::base58_keys_valid + sizeof(json_tests::base58_keys_valid)));
+    UniValue tests = read_json(std::string(json_tests::base58_keys_valid, json_tests::base58_keys_valid + sizeof(json_tests::base58_keys_valid)));
     std::vector<unsigned char> result;
 
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         std::string strTest = test.write();
         if (test.size() < 3) // Allow for extra stuff (useful for comments)
         {
@@ -191,7 +191,7 @@ BOOST_AUTO_TEST_CASE(base58_keys_valid_gen)
         }
         std::string exp_base58string = test[0].get_str();
         std::vector<unsigned char> exp_payload = ParseHex(test[1].get_str());
-        const Object &metadata = test[2].get_obj();
+        const UniValue &metadata = test[2].get_obj();
         bool isPrivkey = find_value(metadata, "isPrivkey").get_bool();
         bool isTestnet = find_value(metadata, "isTestnet").get_bool();
         if (isTestnet)
@@ -246,13 +246,13 @@ BOOST_AUTO_TEST_CASE(base58_keys_valid_gen)
 // Goal: check that base58 parsing code is robust against a variety of corrupted data
 BOOST_AUTO_TEST_CASE(base58_keys_invalid)
 {
-    Array tests = read_json(std::string(json_tests::base58_keys_invalid, json_tests::base58_keys_invalid + sizeof(json_tests::base58_keys_invalid))); // Negative testcases
+    UniValue tests = read_json(std::string(json_tests::base58_keys_invalid, json_tests::base58_keys_invalid + sizeof(json_tests::base58_keys_invalid))); // Negative testcases
     std::vector<unsigned char> result;
     CBitcoinSecret secret;
     CBitcoinAddress addr;
 
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         std::string strTest = test.write();
         if (test.size() < 1) // Allow for extra stuff (useful for comments)
         {
diff --git a/src/test/rpc_tests.cpp b/src/test/rpc_tests.cpp
index 991763abaf..a97c96be72 100644
--- a/src/test/rpc_tests.cpp
+++ b/src/test/rpc_tests.cpp
@@ -34,7 +34,7 @@ Value CallRPC(string args)
     boost::split(vArgs, args, boost::is_any_of(" \t"));
     string strMethod = vArgs[0];
     vArgs.erase(vArgs.begin());
-    Array params = RPCConvertValues(strMethod, vArgs);
+    UniValue params = RPCConvertValues(strMethod, vArgs);
 
     rpcfn_type method = tableRPC[strMethod]->actor;
     try {
diff --git a/src/test/rpc_wallet_tests.cpp b/src/test/rpc_wallet_tests.cpp
index 4d5e92cbd4..1a897fcd54 100644
--- a/src/test/rpc_wallet_tests.cpp
+++ b/src/test/rpc_wallet_tests.cpp
@@ -17,7 +17,7 @@
 using namespace std;
 using namespace json_spirit;
 
-extern Array createArgs(int nRequired, const char* address1 = NULL, const char* address2 = NULL);
+extern UniValue createArgs(int nRequired, const char* address1 = NULL, const char* address2 = NULL);
 extern Value CallRPC(string args);
 
 extern CWallet* pwalletMain;
@@ -213,7 +213,7 @@ BOOST_AUTO_TEST_CASE(rpc_wallet)
      *********************************/
     BOOST_CHECK_THROW(CallRPC("getaddressesbyaccount"), runtime_error);
     BOOST_CHECK_NO_THROW(retValue = CallRPC("getaddressesbyaccount " + strAccount));
-    Array arr = retValue.get_array();
+    UniValue arr = retValue.get_array();
     BOOST_CHECK(arr.size() > 0);
     BOOST_CHECK(CBitcoinAddress(arr[0].get_str()).Get() == demoAddress.Get());
 }
diff --git a/src/test/script_tests.cpp b/src/test/script_tests.cpp
index 80e5ac6b32..af11c0c9d9 100644
--- a/src/test/script_tests.cpp
+++ b/src/test/script_tests.cpp
@@ -293,7 +293,7 @@ public:
         return *this;
     }
 
-    Array GetJSON()
+    UniValue GetJSON()
     {
         DoPush();
         UniValue array(UniValue::VARR);
@@ -580,8 +580,8 @@ BOOST_AUTO_TEST_CASE(script_build)
     std::set<std::string> tests_bad;
 
     {
-        Array json_good = read_json(std::string(json_tests::script_valid, json_tests::script_valid + sizeof(json_tests::script_valid)));
-        Array json_bad = read_json(std::string(json_tests::script_invalid, json_tests::script_invalid + sizeof(json_tests::script_invalid)));
+        UniValue json_good = read_json(std::string(json_tests::script_valid, json_tests::script_valid + sizeof(json_tests::script_valid)));
+        UniValue json_bad = read_json(std::string(json_tests::script_invalid, json_tests::script_invalid + sizeof(json_tests::script_invalid)));
 
         for (unsigned int idx = 0; idx < json_good.size(); idx++) {
             const Value& tv = json_good[idx];
@@ -634,10 +634,10 @@ BOOST_AUTO_TEST_CASE(script_valid)
     // Inner arrays are [ "scriptSig", "scriptPubKey", "flags" ]
     // ... where scriptSig and scriptPubKey are stringified
     // scripts.
-    Array tests = read_json(std::string(json_tests::script_valid, json_tests::script_valid + sizeof(json_tests::script_valid)));
+    UniValue tests = read_json(std::string(json_tests::script_valid, json_tests::script_valid + sizeof(json_tests::script_valid)));
 
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         string strTest = test.write();
         if (test.size() < 3) // Allow size > 3; extra stuff ignored (useful for comments)
         {
@@ -659,10 +659,10 @@ BOOST_AUTO_TEST_CASE(script_valid)
 BOOST_AUTO_TEST_CASE(script_invalid)
 {
     // Scripts that should evaluate as invalid
-    Array tests = read_json(std::string(json_tests::script_invalid, json_tests::script_invalid + sizeof(json_tests::script_invalid)));
+    UniValue tests = read_json(std::string(json_tests::script_invalid, json_tests::script_invalid + sizeof(json_tests::script_invalid)));
 
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         string strTest = test.write();
         if (test.size() < 3) // Allow size > 2; extra stuff ignored (useful for comments)
         {
diff --git a/src/test/sighash_tests.cpp b/src/test/sighash_tests.cpp
index 121644ddc4..efdb4e8043 100644
--- a/src/test/sighash_tests.cpp
+++ b/src/test/sighash_tests.cpp
@@ -19,7 +19,7 @@
 #include "json_spirit_wrapper.h"
 
 using namespace json_spirit;
-extern Array read_json(const std::string& jsondata);
+extern UniValue read_json(const std::string& jsondata);
 
 // Old script.cpp SignatureHash function
 uint256 static SignatureHashOld(CScript scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType)
@@ -166,10 +166,10 @@ BOOST_AUTO_TEST_CASE(sighash_test)
 // Goal: check that SignatureHash generates correct hash
 BOOST_AUTO_TEST_CASE(sighash_from_data)
 {
-    Array tests = read_json(std::string(json_tests::sighash, json_tests::sighash + sizeof(json_tests::sighash)));
+    UniValue tests = read_json(std::string(json_tests::sighash, json_tests::sighash + sizeof(json_tests::sighash)));
 
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         std::string strTest = test.write();
         if (test.size() < 1) // Allow for extra stuff (useful for comments)
         {
diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp
index 0ddc48271b..afd2d74013 100644
--- a/src/test/transaction_tests.cpp
+++ b/src/test/transaction_tests.cpp
@@ -30,7 +30,7 @@ using namespace std;
 using namespace json_spirit;
 
 // In script_tests.cpp
-extern Array read_json(const std::string& jsondata);
+extern UniValue read_json(const std::string& jsondata);
 
 static std::map<string, unsigned int> mapFlagNames = boost::assign::map_list_of
     (string("NONE"), (unsigned int)SCRIPT_VERIFY_NONE)
@@ -90,7 +90,7 @@ BOOST_AUTO_TEST_CASE(tx_valid)
     // ... where all scripts are stringified scripts.
     //
     // verifyFlags is a comma separated list of script verification flags to apply, or "NONE"
-    Array tests = read_json(std::string(json_tests::tx_valid, json_tests::tx_valid + sizeof(json_tests::tx_valid)));
+    UniValue tests = read_json(std::string(json_tests::tx_valid, json_tests::tx_valid + sizeof(json_tests::tx_valid)));
 
 <<<<<<< HEAD
     ScriptError err;
@@ -101,7 +101,7 @@ BOOST_AUTO_TEST_CASE(tx_valid)
         if (test[0].type() == array_type)
 =======
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         string strTest = test.write();
         if (test[0].isArray())
 >>>>>>> Convert tree to using univalue. Eliminate all json_spirit uses.
@@ -113,7 +113,7 @@ BOOST_AUTO_TEST_CASE(tx_valid)
             }
 
             map<COutPoint, CScript> mapprevOutScriptPubKeys;
-            Array inputs = test[0].get_array();
+            UniValue inputs = test[0].get_array();
             bool fValid = true;
 	    for (unsigned int inpIdx = 0; inpIdx < inputs.size(); inpIdx++) {
 	        const Value& input = inputs[inpIdx];
@@ -122,7 +122,7 @@ BOOST_AUTO_TEST_CASE(tx_valid)
                     fValid = false;
                     break;
                 }
-                Array vinput = input.get_array();
+                UniValue vinput = input.get_array();
                 if (vinput.size() != 3)
                 {
                     fValid = false;
@@ -173,7 +173,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
     // ... where all scripts are stringified scripts.
     //
     // verifyFlags is a comma separated list of script verification flags to apply, or "NONE"
-    Array tests = read_json(std::string(json_tests::tx_invalid, json_tests::tx_invalid + sizeof(json_tests::tx_invalid)));
+    UniValue tests = read_json(std::string(json_tests::tx_invalid, json_tests::tx_invalid + sizeof(json_tests::tx_invalid)));
 
 <<<<<<< HEAD
     ScriptError err;
@@ -184,7 +184,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
         if (test[0].type() == array_type)
 =======
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
-        Array test = tests[idx];
+        UniValue test = tests[idx];
         string strTest = test.write();
         if (test[0].isArray())
 >>>>>>> Convert tree to using univalue. Eliminate all json_spirit uses.
@@ -196,7 +196,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
             }
 
             map<COutPoint, CScript> mapprevOutScriptPubKeys;
-            Array inputs = test[0].get_array();
+            UniValue inputs = test[0].get_array();
             bool fValid = true;
 	    for (unsigned int inpIdx = 0; inpIdx < inputs.size(); inpIdx++) {
 	        const Value& input = inputs[inpIdx];
@@ -205,7 +205,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
                     fValid = false;
                     break;
                 }
-                Array vinput = input.get_array();
+                UniValue vinput = input.get_array();
                 if (vinput.size() != 3)
                 {
                     fValid = false;
diff --git a/src/wallet/rpcdump.cpp b/src/wallet/rpcdump.cpp
index e0cccef696..9d72c45bae 100644
--- a/src/wallet/rpcdump.cpp
+++ b/src/wallet/rpcdump.cpp
@@ -70,7 +70,7 @@ std::string DecodeDumpString(const std::string &str) {
     return ret.str();
 }
 
-Value importprivkey(const Array& params, bool fHelp)
+UniValue importprivkey(const Array& params, bool fHelp)
 {
     if (!EnsureWalletIsAvailable(fHelp))
         return NullUniValue;
@@ -144,7 +144,7 @@ Value importprivkey(const Array& params, bool fHelp)
     return NullUniValue;
 }
 
-Value importaddress(const Array& params, bool fHelp)
+UniValue importaddress(const Array& params, bool fHelp)
 {
     if (!EnsureWalletIsAvailable(fHelp))
         return NullUniValue;
@@ -217,7 +217,7 @@ Value importaddress(const Array& params, bool fHelp)
     return NullUniValue;
 }
 
-Value importwallet(const Array& params, bool fHelp)
+UniValue importwallet(const Array& params, bool fHelp)
 {
     if (!EnsureWalletIsAvailable(fHelp))
         return NullUniValue;
@@ -321,7 +321,7 @@ Value importwallet(const Array& params, bool fHelp)
     return NullUniValue;
 }
 
-Value dumpprivkey(const Array& params, bool fHelp)
+UniValue dumpprivkey(const Array& params, bool fHelp)
 {
     if (!EnsureWalletIsAvailable(fHelp))
         return NullUniValue;
@@ -359,7 +359,7 @@ Value dumpprivkey(const Array& params, bool fHelp)
 }
 
 
-Value dumpwallet(const Array& params, bool fHelp)
+UniValue dumpwallet(const Array& params, bool fHelp)
 {
     if (!EnsureWalletIsAvailable(fHelp))
         return NullUniValue;
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 0cfd13a6b2..d5d97604f4 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -764,7 +764,7 @@ Value getbalance(const Array& params, bool fHelp)
     return ValueFromAmount(nBalance);
 }
 
-Value getunconfirmedbalance(const Array &params, bool fHelp)
+Value getunconfirmedbalance(const UniValue &params, bool fHelp)
 {
     if (!EnsureWalletIsAvailable(fHelp))
         return NullUniValue;
@@ -957,7 +957,7 @@ Value sendmany(const Array& params, bool fHelp)
     LOCK2(cs_main, pwalletMain->cs_wallet);
 
     string strAccount = AccountFromValue(params[0]);
-    Object sendTo = params[1].get_obj();
+    UniValue sendTo = params[1].get_obj();
     int nMinDepth = 1;
     if (params.size() > 2)
         nMinDepth = params[2].get_int();
@@ -1279,7 +1279,7 @@ Value listreceivedbyaccount(const Array& params, bool fHelp)
     return ListReceived(params, true);
 }
 
-static void MaybePushAddress(Object & entry, const CTxDestination &dest)
+static void MaybePushAddress(UniValue & entry, const CTxDestination &dest)
 {
     CBitcoinAddress addr;
     if (addr.Set(dest))
@@ -2071,7 +2071,7 @@ Value lockunspent(const Array& params, bool fHelp)
         return true;
     }
 
-    Array outputs = params[1].get_array();
+    UniValue outputs = params[1].get_array();
     for (unsigned int idx = 0; idx < outputs.size(); idx++) {
         const UniValue& output = outputs[idx];
         if (!output.isObject())
@@ -2295,7 +2295,7 @@ Value listunspent(const Array& params, bool fHelp)
 
     set<CBitcoinAddress> setAddress;
     if (params.size() > 2) {
-        Array inputs = params[2].get_array();
+        UniValue inputs = params[2].get_array();
         for (unsigned int idx = 0; idx < inputs.size(); idx++) {
             const Value& input = inputs[idx];
             CBitcoinAddress address(input.get_str());