diff --git a/src/cc/CCutils.cpp b/src/cc/CCutils.cpp
index 0c456450f..dfb8aeff3 100644
--- a/src/cc/CCutils.cpp
+++ b/src/cc/CCutils.cpp
@@ -578,9 +578,13 @@ uint256 CCOraclesReverseScan(char const *logcategory,uint256 &txid,int32_t heigh
     return(zeroid);
 }
 
+int32_t NSPV_coinaddr_inmempool(char const *logcategory,char *coinaddr,uint8_t CCflag);
+
 int32_t myIs_coinaddr_inmempoolvout(char const *logcategory,char *coinaddr)
 {
     int32_t i,n; char destaddr[64];
+    if ( KOMODO_NSPV != 0 )
+        return(NSPV_coinaddr_inmempool(logcategory,coinaddr,1));
     BOOST_FOREACH(const CTxMemPoolEntry &e,mempool.mapTx)
     {
         const CTransaction &tx = e.GetTx();
diff --git a/src/komodo_nSPV.h b/src/komodo_nSPV.h
index 83b07bb4c..5a16e91f1 100644
--- a/src/komodo_nSPV.h
+++ b/src/komodo_nSPV.h
@@ -16,14 +16,10 @@
 
 // todo:
 
-// use mempool functions in CC: myIsutxo_spentinmempool and mytxid_inmempool
-
 // headers "sync" make sure it connects to prior blocks to notarization. use getinfo hdrht to get missing hdrs
 
-// Myprivkey(uint8_t *privkey), scrub all destination privkey buffers
 // make sure to sanity check all vector lengths on receipt
 // make sure no files are updated (this is to allow nSPV=1 and later nSPV=0 without affecting database)
-// make req for utxo/txid more sane? (optional)
 // bug: under load, fullnode was returning all 0 nServices
 
 #ifndef KOMODO_NSPV_H
@@ -213,7 +209,7 @@ int32_t NSPV_rwmempoolresp(int32_t rwflag,uint8_t *serialized,struct NSPV_mempoo
     len += iguana_rwbignum(rwflag,&serialized[len],sizeof(ptr->txid),(uint8_t *)&ptr->txid);
     len += iguana_rwnum(rwflag,&serialized[len],sizeof(ptr->nodeheight),&ptr->nodeheight);
     len += iguana_rwnum(rwflag,&serialized[len],sizeof(ptr->vout),&ptr->vout);
-    len += iguana_rwnum(rwflag,&serialized[len],sizeof(ptr->pad32),&ptr->pad32);
+    len += iguana_rwnum(rwflag,&serialized[len],sizeof(ptr->vindex),&ptr->vindex);
     len += iguana_rwnum(rwflag,&serialized[len],sizeof(ptr->CCflag),&ptr->CCflag);
     len += iguana_rwnum(rwflag,&serialized[len],sizeof(ptr->funcid),&ptr->funcid);
     if ( rwflag != 0 )
diff --git a/src/komodo_nSPV_defs.h b/src/komodo_nSPV_defs.h
index 1380f87d2..f681a6f77 100644
--- a/src/komodo_nSPV_defs.h
+++ b/src/komodo_nSPV_defs.h
@@ -101,7 +101,7 @@ struct NSPV_mempoolresp
     uint256 *txids;
     char coinaddr[64];
     uint256 txid;
-    int32_t nodeheight,vout,pad32;
+    int32_t nodeheight,vout,vindex;
     uint16_t numtxids; uint8_t CCflag,funcid;
 };
 
diff --git a/src/komodo_nSPV_fullnode.h b/src/komodo_nSPV_fullnode.h
index c30f542c0..b73514da1 100644
--- a/src/komodo_nSPV_fullnode.h
+++ b/src/komodo_nSPV_fullnode.h
@@ -241,9 +241,10 @@ int32_t NSPV_getaddresstxids(struct NSPV_txidsresp *ptr,char *coinaddr,bool isCC
     return(0);
 }
 
-int32_t NSPV_mempoolfuncs(std::vector<uint256> &txids,char *coinaddr,bool isCC,uint8_t funcid,uint256 txid,int32_t vout)
+int32_t NSPV_mempoolfuncs(int32_t *vindexp,std::vector<uint256> &txids,char *coinaddr,bool isCC,uint8_t funcid,uint256 txid,int32_t vout)
 {
-    int32_t num = 0,vini = 0; char destaddr[64];
+    int32_t num = 0,vini = 0,vouti = 0; char destaddr[64];
+    *vindexp = -1;
     if ( mempool.size() == 0 )
         return(0);
     LOCK(mempool.cs);
@@ -264,6 +265,7 @@ int32_t NSPV_mempoolfuncs(std::vector<uint256> &txids,char *coinaddr,bool isCC,u
                 txids.push_back(hash);
                 return(++num);
             }
+            continue;
         }
         if ( funcid == NSPV_MEMPOOL_ISSPENT )
         {
@@ -273,6 +275,7 @@ int32_t NSPV_mempoolfuncs(std::vector<uint256> &txids,char *coinaddr,bool isCC,u
                 if ( txin.prevout.n == vout && txin.prevout.hash == txid )
                 {
                     txids.push_back(hash);
+                    *vindexp = vini;
                     return(++num);
                 }
                 vini++;
@@ -288,9 +291,11 @@ int32_t NSPV_mempoolfuncs(std::vector<uint256> &txids,char *coinaddr,bool isCC,u
                     if ( strcmp(destaddr,coinaddr) == 0 )
                     {
                         txids.push_back(hash);
+                        *vindexp = vouti;
                         num++;
                     }
                 }
+                vouti++;
             }
         }
         //fprintf(stderr,"are vins for %s\n",uint256_str(str,hash));
@@ -307,7 +312,7 @@ int32_t NSPV_mempooltxids(struct NSPV_mempoolresp *ptr,char *coinaddr,bool isCC,
     ptr->txid = txid;
     ptr->vout = vout;
     ptr->funcid = funcid;
-    if ( NSPV_mempoolfuncs(txids,coinaddr,isCC,funcid,txid,vout) >= 0 )
+    if ( NSPV_mempoolfuncs(&ptr->vindex,txids,coinaddr,isCC,funcid,txid,vout) >= 0 )
     {
         if ( (ptr->numtxids= (int32_t)txids.size()) >= 0 )
         {
diff --git a/src/komodo_nSPV_superlite.h b/src/komodo_nSPV_superlite.h
index 4be698367..64c29bb5d 100644
--- a/src/komodo_nSPV_superlite.h
+++ b/src/komodo_nSPV_superlite.h
@@ -689,6 +689,35 @@ UniValue NSPV_mempooltxids(char *coinaddr,int32_t CCflag,uint8_t funcid,uint256
     return(result);
 }
 
+int32_t NSPV_coinaddr_inmempool(char const *logcategory,char *coinaddr,uint8_t CCflag)
+{
+    NSPV_mempooltxids(coinaddr,CCflag,NSPV_MEMPOOL_ADDRESS,zeroid,-1);
+    if ( NSPV_mempoolresult.txids != 0 && NSPV_mempoolresult.numtxids >= 1 && NSPV_mempoolresult.txid == txid && NSPV_mempoolresult.CCflag == CCflag )
+    {
+        LogPrint(logcategory,"found (%s) vout in mempool\n",coinaddr);
+        return(true);
+    } else return(false);
+}
+
+bool NSPV_spentinmempool(uint256 &spenttxid,int32_t &spentvini,uint256 txid,int32_t vout)
+{
+    NSPV_mempooltxids("",0,NSPV_MEMPOOL_ISSPENT,txid,vout);
+    if ( NSPV_mempoolresult.txids != 0 && NSPV_mempoolresult.numtxids == 1 && NSPV_mempoolresult.txid == txid )
+    {
+        spenttxid = NSPV_mempoolresult.txids[0];
+        spentvini = NSPV_mempoolresult.vindex;
+        return(true);
+    } else return(false);
+}
+
+bool NSPV_inmempool(uint256 txid)
+{
+    NSPV_mempooltxids("",0,NSPV_MEMPOOL_INMEMPOOL,txid,0);
+    if ( NSPV_mempoolresult.txids != 0 && NSPV_mempoolresult.numtxids == 1 && NSPV_mempoolresult.txids[0] == txid )
+        return(true);
+    else return(false);
+}
+
 UniValue NSPV_notarizations(int32_t reqheight)
 {
     uint8_t msg[64]; int32_t i,iter,len = 0; struct NSPV_ntzsresp N,*ptr;
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 9c55c807b..deb198aa6 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -390,11 +390,14 @@ UniValue getdifficulty(const UniValue& params, bool fHelp)
     return GetNetworkDifficulty();
 }
 
+bool NSPV_spentinmempool(uint256 &spenttxid,int32_t &spentvini,uint256 txid,int32_t vout);
+bool NSPV_inmempool(uint256 txid);
+
 bool myIsutxo_spentinmempool(uint256 &spenttxid,int32_t &spentvini,uint256 txid,int32_t vout)
 {
-    //char *uint256_str(char *str,uint256); char str[65];
-    //LOCK(mempool.cs);
     int32_t vini = 0;
+    if ( KOMODO_NSPV != 0 )
+        return(NSPV_spentinmempool(spenttxid,spentvini,txid,vout));
     BOOST_FOREACH(const CTxMemPoolEntry &e,mempool.mapTx)
     {
         const CTransaction &tx = e.GetTx();
@@ -417,6 +420,10 @@ bool myIsutxo_spentinmempool(uint256 &spenttxid,int32_t &spentvini,uint256 txid,
 
 bool mytxid_inmempool(uint256 txid)
 {
+    if ( KOMODO_NSPV != 0 )
+    {
+        
+    }
     BOOST_FOREACH(const CTxMemPoolEntry &e,mempool.mapTx)
     {
         const CTransaction &tx = e.GetTx();