diff --git a/package.json b/package.json
index 01e07f4..e5b51aa 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@fireblocks/ncw-js-sdk": "^9.3.1",
+    "@fireblocks/ncw-js-sdk": "^9.5.0",
     "base58-js": "^2.0.0",
     "classnames": "^2.3.2",
     "node-forge": "^1.3.1",
diff --git a/src/AppStore.ts b/src/AppStore.ts
index c2db907..7b0e837 100644
--- a/src/AppStore.ts
+++ b/src/AppStore.ts
@@ -416,6 +416,18 @@ export const useAppStore = create<IAppState>()((set, get) => {
 
       set((state) => ({ ...state, web3Connections: state.web3Connections.filter((s) => s.id !== sessionId) }));
     },
+    joinExistingWallet: async () => {
+      if (!fireblocksNCW) {
+        throw new Error("fireblocksNCW is not initialized");
+      }
+      await fireblocksNCW.joinExistingWallet();
+    },
+    approveJoinWallet: async () => {
+      if (!fireblocksNCW) {
+        throw new Error("fireblocksNCW is not initialized");
+      }
+      await fireblocksNCW.approveJoinWallet();
+    },
     generateMPCKeys: async () => {
       if (!fireblocksNCW) {
         throw new Error("fireblocksNCW is not initialized");
diff --git a/src/IAppState.ts b/src/IAppState.ts
index 19978b5..107f26c 100644
--- a/src/IAppState.ts
+++ b/src/IAppState.ts
@@ -45,6 +45,8 @@ export interface IAppState {
   loginToDemoAppServer: () => void;
   assignCurrentDevice: () => Promise<void>;
   generateNewDeviceId: () => Promise<void>;
+  joinExistingWallet: () => Promise<void>;
+  approveJoinWallet: () => Promise<boolean>;
   generateMPCKeys: () => Promise<void>;
   stopMpcDeviceSetup: () => Promise<void>;
   createTransaction: () => Promise<void>;
diff --git a/src/components/GenerateMPCKeys.tsx b/src/components/GenerateMPCKeys.tsx
index 9b32ac8..35e67e7 100644
--- a/src/components/GenerateMPCKeys.tsx
+++ b/src/components/GenerateMPCKeys.tsx
@@ -8,8 +8,10 @@ export const GenerateMPCKeys: React.FC = () => {
   const [err, setErr] = React.useState<string | null>(null);
   const [isGenerateInProgress, setIsGenerateInProgress] = React.useState(false);
   const [isStopInProgress, setIsStopInProgress] = React.useState(false);
+  const [isJoinExistingInProgress, setIsJoinExistingInProgress] = React.useState(false);
+  const [isApproveJoinWalletInProgress, setIsApproveJoinWalletInProgress] = React.useState(false);
   const [generateMPCKeysResult, setGenerateMPCKeysResult] = React.useState<string | null>(null);
-  const { keysStatus, generateMPCKeys, stopMpcDeviceSetup } = useAppStore();
+  const { keysStatus, generateMPCKeys, stopMpcDeviceSetup, joinExistingWallet, approveJoinWallet } = useAppStore();
 
   const doGenerateMPCKeys = async () => {
     setGenerateMPCKeysResult(null);
@@ -51,6 +53,40 @@ export const GenerateMPCKeys: React.FC = () => {
     }
   };
 
+  const doJoinExistingWallet = async () => {
+    setErr(null);
+    setIsJoinExistingInProgress(true);
+    try {
+      await joinExistingWallet();
+      setIsJoinExistingInProgress(false);
+    } catch (err: unknown) {
+      if (err instanceof Error) {
+        setErr(err.message);
+      } else {
+        setErr("Unknown Error");
+      }
+    } finally {
+      setIsJoinExistingInProgress(false);
+    }
+  };
+
+  const doApproveJoinWallet = async () => {
+    setErr(null);
+    setIsApproveJoinWalletInProgress(true);
+    try {
+      await approveJoinWallet();
+      setIsApproveJoinWalletInProgress(false);
+    } catch (err: unknown) {
+      if (err instanceof Error) {
+        setErr(err.message);
+      } else {
+        setErr("Unknown Error");
+      }
+    } finally {
+      setIsApproveJoinWalletInProgress(false);
+    }
+  };
+
   const secP256K1Status = keysStatus?.MPC_CMP_ECDSA_SECP256K1?.keyStatus ?? null;
   const statusToProgress = (status: TKeyStatus | null) => {
     switch (status) {
@@ -70,22 +106,42 @@ export const GenerateMPCKeys: React.FC = () => {
   };
   const secP256K1Ready = secP256K1Status === "READY";
 
+  const anyActionInProgress =
+    isApproveJoinWalletInProgress || isJoinExistingInProgress || isStopInProgress || isGenerateInProgress;
+
   const generateAction: ICardAction = {
     label: "Generate MPC Keys",
     action: doGenerateMPCKeys,
-    isDisabled: isGenerateInProgress || secP256K1Ready,
+    isDisabled: anyActionInProgress || secP256K1Ready,
     isInProgress: isGenerateInProgress,
   };
 
   const stopAction: ICardAction = {
     label: "Stop MPC Device Setup",
     action: doStopMPCDeviceSetup,
-    isDisabled: isStopInProgress || !isGenerateInProgress,
+    isDisabled: anyActionInProgress || !isGenerateInProgress,
     isInProgress: isStopInProgress,
   };
 
+  const joinExistingWalletAction: ICardAction = {
+    action: doJoinExistingWallet,
+    isDisabled: anyActionInProgress || secP256K1Ready,
+    label: "Join Existing Wallet",
+    isInProgress: isJoinExistingInProgress,
+  };
+
+  const approveJoinWalletAction: ICardAction = {
+    action: doApproveJoinWallet,
+    isDisabled: anyActionInProgress || secP256K1Ready,
+    label: "Approve Join Wallet",
+    isInProgress: isJoinExistingInProgress,
+  };
+
   return (
-    <Card title="Generate MPC Keys" actions={[generateAction, stopAction]}>
+    <Card
+      title="Generate MPC Keys"
+      actions={[joinExistingWalletAction, approveJoinWalletAction, generateAction, stopAction]}
+    >
       <div className="overflow-x-auto">
         <table className="table">
           {/* head */}
diff --git a/yarn.lock b/yarn.lock
index 124bafd..74951ce 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -732,19 +732,19 @@
   resolved "https://registry.npmjs.org/@firebase/webchannel-wrapper/-/webchannel-wrapper-0.10.3.tgz"
   integrity sha512-+ZplYUN3HOpgCfgInqgdDAbkGGVzES1cs32JJpeqoh87SkRobGXElJx+1GZSaDqzFL+bYiX18qEcBK76mYs8uA==
 
-"@fireblocks/ncw-js-infra@^1.0.12":
-  version "1.0.12"
-  resolved "https://registry.npmjs.org/@fireblocks/ncw-js-infra/-/ncw-js-infra-1.0.12.tgz"
-  integrity sha512-IT97nVqI0kDWVNeOZSq56bxvNt1ceILq3b464GhXVn2H9rA9L4d/XqKl+wcnpJVReQNP7gUSp8NxWCCeoed4dA==
+"@fireblocks/ncw-js-infra@^1.0.13":
+  version "1.0.13"
+  resolved "https://registry.yarnpkg.com/@fireblocks/ncw-js-infra/-/ncw-js-infra-1.0.13.tgz#0116b05bfdec10016c24ac0fb9889432ac0c3c9d"
+  integrity sha512-VVR1J0MRc0ppzoWcSJjQNF0Ah2cQ8ysSjp9tvS6DvlN17oUlb1A/xceeIY8tW6zAgwFv/ZjAb+5QR9AaDjTE6g==
   dependencies:
     "@types/emscripten" "^1.39.7"
 
-"@fireblocks/ncw-js-sdk@^9.3.1":
-  version "9.3.1"
-  resolved "https://registry.yarnpkg.com/@fireblocks/ncw-js-sdk/-/ncw-js-sdk-9.3.1.tgz#84ef4d9dd1d17ae967a0af0866ec7abee4fb0cd6"
-  integrity sha512-otdWkifgsuOdA5a8IMWsmnZypl+xQx2h41YvBbc5HKNviou1d2ig1QJn+2o2Sy0GdaN/56J9vmL7W/y2wWBz1g==
+"@fireblocks/ncw-js-sdk@^9.5.0":
+  version "9.5.0"
+  resolved "https://registry.yarnpkg.com/@fireblocks/ncw-js-sdk/-/ncw-js-sdk-9.5.0.tgz#65cbc16fafb9df4c2af0ae4d04b5ddb572fd0fc0"
+  integrity sha512-/2hTgOnxbeiEVyY8PUpOK/3idbk1qyiDCUbDap2hS7GciXawdsCTslrcsZ36fEUd/I+AYmvger+RdmW/Vs15jg==
   dependencies:
-    "@fireblocks/ncw-js-infra" "^1.0.12"
+    "@fireblocks/ncw-js-infra" "^1.0.13"
     "@types/jwt-decode" "^3.1.0"
     "@types/node-forge" "^1.3.4"
     jwt-decode "^3.1.2"