diff --git a/server/start.go b/server/start.go
index b5c00a6f0576..3e0c75906659 100644
--- a/server/start.go
+++ b/server/start.go
@@ -4,6 +4,9 @@ package server
 
 import (
 	"fmt"
+	"github.com/cosmos/cosmos-sdk/client/context"
+	"github.com/cosmos/cosmos-sdk/x/auth/types"
+	"github.com/tendermint/tendermint/rpc/client/local"
 	"os"
 	"runtime/pprof"
 
@@ -275,6 +278,14 @@ func startInProcess(ctx *Context, cdc *codec.Codec, appCreator AppCreator,
 
 	baseapp.SetGlobalMempool(tmNode.Mempool(), cfg.Mempool.SortTxByGp, cfg.Mempool.EnablePendingPool)
 
+	if cfg.Mempool.EnablePendingPool {
+		cliCtx := context.NewCLIContext().WithCodec(cdc)
+		cliCtx.Client = local.New(tmNode)
+		cliCtx.TrustNode = true
+		accRetriever := types.NewAccountRetriever(cliCtx)
+		tmNode.Mempool().SetAccountRetriever(accRetriever)
+	}
+
 	// run forever (the node will not be returned)
 	select {}
 }
diff --git a/x/auth/types/account_retriver_exchain.go b/x/auth/types/account_retriver_exchain.go
new file mode 100644
index 000000000000..673eeb1543bf
--- /dev/null
+++ b/x/auth/types/account_retriver_exchain.go
@@ -0,0 +1,15 @@
+package types
+
+import sdk "github.com/cosmos/cosmos-sdk/types"
+
+func (ar AccountRetriever) GetAccountNonce(address string) uint64 {
+	addr, err := sdk.AccAddressFromBech32(address)
+	if err != nil {
+		return 0
+	}
+	acc, err := ar.GetAccount(addr)
+	if err != nil {
+		return 0
+	}
+	return acc.GetSequence()
+}