diff --git a/package.json b/package.json
index 38bf3bf..90035ea 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "holo:chaperone": "npx chaperone-server --config ./chaperone.json"
   },
   "dependencies": {
+    "@holochain/client": "^0.18.0-dev.6",
     "@holo-host/identicon": "^0.1.0",
     "@holo-host/web-sdk": "^0.6.9-prerelease",
     "@testing-library/user-event": "^13.2.1",
diff --git a/src/components/RegisterHapp.vue b/src/components/RegisterHapp.vue
index 16af6ad..2c3bec5 100644
--- a/src/components/RegisterHapp.vue
+++ b/src/components/RegisterHapp.vue
@@ -34,7 +34,7 @@
 
 <script>
 import Button from './Button.vue'
-import { getMembraneProof } from '../utils/registration.hs'
+import { getMembraneProof } from '../utils/registration.js'
 
 export default {
   name: 'RegisterHapp',
diff --git a/src/stores/useHolochainStore.js b/src/stores/useHolochainStore.js
index 52a1655..f788603 100644
--- a/src/stores/useHolochainStore.js
+++ b/src/stores/useHolochainStore.js
@@ -1,5 +1,5 @@
 import { inspect } from 'util'
-import { AdminWebsocket, AppWebsocket, generateSigningKeyPair, setSigningCredentials } from '@holochain/client'
+import { AdminWebsocket, AppWebsocket } from '@holochain/client'
 import { defineStore } from 'pinia'
 import { presentHcSignal, listify } from '../utils'
 import useIsLoadingStore from './useIsLoadingStore'
@@ -7,6 +7,11 @@ import useSignalStore from './useSignalStore'
 import { kycLevel2 } from '../services/hbs'
 import { hposHolochainCall } from '../services/hpos'
 
+const __HC_LAUNCHER_ENV__ = "__HC_LAUNCHER_ENV__";
+const __HC_ZOME_CALL_SIGNER__ = "__HC_ZOME_CALL_SIGNER__";
+const isLauncher = () => globalThis.window && __HC_LAUNCHER_ENV__ in globalThis.window;
+const getLauncherEnvironment = () => isLauncher() ? globalThis.window[__HC_LAUNCHER_ENV__] : undefined;
+
 const HC_APP_TIMEOUT = 35_000
 
 const makeUseHolochainStore = ({ installed_app_id, app_ws_url, hc_admin_port }) => defineStore('holochain', {
@@ -15,7 +20,10 @@ const makeUseHolochainStore = ({ installed_app_id, app_ws_url, hc_admin_port })
     // These two values are subscribed to by clientStore
     appInfo: null,
     isReady: false,
-    signingCredentials: null
+    isLauncherEnv: false,
+    adminWebsocketCache: null,
+    signingCredentialsCache: {}, // An installed app may have multiple cells, therefore we create a map of signing credentials per cell id 
+    happConnectionCache: {}
   }),
   getters: {
     isAnonymous: _ => false, // for compatibility with holo
@@ -26,12 +34,52 @@ const makeUseHolochainStore = ({ installed_app_id, app_ws_url, hc_admin_port })
 
     async initialize() {
       try {
-        const holochainClient = await AppWebsocket.connect(
-          app_ws_url,
-          HC_APP_TIMEOUT,
-          signal => useSignalStore().handleSignal(presentHcSignal(signal))
-        )
+        let happConnectionExpiration = this.happConnectionCache["expiresAt"];
+        let happConnectionToken = this.happConnectionCache["token"];
+        let launcherEnv = getLauncherEnvironment();
+
+        if (!!launcherEnv) {
+          this.isLauncherEnv = true;
+          if (!launcherEnv.APP_INTERFACE_TOKEN) {
+            console.warn(`Failed to locate the app interface token for app in launcher env: ${launcherEnv}`);
+          }
+          if (!launcherEnv.APP_INTERFACE_PORT) {
+            console.warn(`Failed to locate the app interface port for app in launcher env: ${launcherEnv}`);
+          }
+          this.happConnectionCache["token"] = launcherEnv.APP_INTERFACE_TOKEN;
+          happConnectionToken = launcherEnv.APP_INTERFACE_TOKEN;
+          app_ws_url = `ws:localhost:${launcherEnv.APP_INTERFACE_PORT}`
+        } else if (!happConnectionToken || !happConnectionExpiration || happConnectionExpiration <= Date.now()) {
+            if (!this.adminWebsocketCache) {
+              this.adminWebsocketCache = await AdminWebsocket.connect({
+                url: new URL(`ws:localhost:${hc_admin_port}`),
+                wsClientOptions: { origin: 'ui-common-lib' },
+              });
+            }
+            let adminWs = this.adminWebsocketCache;
+            const issuedToken = await adminWs.issueAppAuthenticationToken({
+              installed_app_id,
+              expiry_seconds: 0,
+            });
+  
+            this.happConnectionCache["expiresAt"] = issuedToken.expires_at;
+            this.happConnectionCache["token"] = issuedToken.token;
+            happConnectionToken = issuedToken.token
+          }
+
+        console.log("app_ws_url : ", app_ws_url)
+        console.log("happConnectionToken : ", happConnectionToken)
+
+        holochainClient = await AppWebsocket.connect({
+          url: new URL(app_ws_url),
+          wsClientOptions: { origin: 'ui-common-lib' },
+          token: happConnectionToken, // do we need this for launcher?
+          defaultTimeout: HC_APP_TIMEOUT,
+        })
+          
+        console.log("holochainClient : ", happConnectionToken)
 
+        holochainClient.on("signal", useSignalStore().handleSignal(presentHcSignal(signal)));
         this.client = holochainClient
 
         holochainClient.client.socket.onclose = function(e) {
@@ -98,13 +146,15 @@ const makeUseHolochainStore = ({ installed_app_id, app_ws_url, hc_admin_port })
         throw new Error(`Couldn't find provisioned cell with role_name ${role_name}`)
       }
 
-      if( !this.signingCredentials)
-      {
-        this.setCredentials(cellId)
+      if (!this.isLauncherEnv) {
+        if(!this.signingCredentialsCache[cellId])
+        {
+          this.setCredentials(cellId)
+        }
+  
+        await this.signingCredentialsCache[cellId]
       }
 
-      await this.signingCredentials
-
       let result = null
 
       const cell_id = [new Uint8Array(listify(cellId[0], (_, value) => (Number(value)))), new Uint8Array(listify(cellId[1], (_, value) => (Number(value))))]
@@ -127,9 +177,15 @@ const makeUseHolochainStore = ({ installed_app_id, app_ws_url, hc_admin_port })
       return result
     },
     setCredentials(cellId) {
-      this.signingCredentials = new Promise(async (resolve, reject) => {
+      this.signingCredentialsCache[cellId] = new Promise(async (resolve, reject) => {
         try {
-          const adminWs = await AdminWebsocket.connect(`ws:localhost:${hc_admin_port}`)
+          if (!this.adminWebsocketCache) {
+            this.adminWebsocketCache = await AdminWebsocket.connect({
+              url: new URL(`ws:localhost:${hc_admin_port}`),
+              wsClientOptions: { origin: 'ui-common-lib' },
+            });
+          }
+          let adminWs = this.adminWebsocketCache;
           await adminWs.authorizeSigningCredentials(cellId)
         } catch(e) {
           console.log(`holochainCallZome error authorizeSigningCredentials AdminWebsocket: ws:localhost:${hc_admin_port}`, e)
diff --git a/yarn.lock b/yarn.lock
index 3d8894b..7325f68 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1976,6 +1976,21 @@
   resolved "https://registry.npmjs.org/@bcoe/v8-coverage/-/v8-coverage-0.2.3.tgz"
   integrity sha512-0hYQ8SB4Db5zvZB4axdMHGwEaQjkZzFjQiN9LVYvIFB2nSUHW9tYpxWriPrWDASIxiaXax83REcLxuSdnGPZtw==
 
+"@bitgo/blake2b-wasm@^3.2.3":
+  version "3.2.3"
+  resolved "https://registry.yarnpkg.com/@bitgo/blake2b-wasm/-/blake2b-wasm-3.2.3.tgz#6ae5e942f2a5fd5b3ed27103af5df0ed50adfbc9"
+  integrity sha512-NaurBrMaEpjfg7EdUJgW/c6byt27O6q1ZaxB5Ita10MjjYjUu0SyYF4q7JPNxpHF/lMxb0YZakOxigbDBu9Jjw==
+  dependencies:
+    nanoassert "^1.0.0"
+
+"@bitgo/blake2b@^3.2.4":
+  version "3.2.4"
+  resolved "https://registry.yarnpkg.com/@bitgo/blake2b/-/blake2b-3.2.4.tgz#6440992affdeabc22b2de8b8f381f51b551dd513"
+  integrity sha512-46PEgEVPxecNJ/xczggIllSxIkFIvvbVM0OfIDdNJ5qpFHUeBCkNIiGdzC3fYZlsv7bVTdUZOj79GcFBLMYBqA==
+  dependencies:
+    "@bitgo/blake2b-wasm" "^3.2.3"
+    nanoassert "^2.0.0"
+
 "@cnakazawa/watch@^1.0.3":
   version "1.0.4"
   resolved "https://registry.npmjs.org/@cnakazawa/watch/-/watch-1.0.4.tgz"
@@ -2196,6 +2211,22 @@
     lodash-es "^4.17.21"
     tweetnacl "^1.0.3"
 
+"@holochain/client@^0.18.0-dev.6":
+  version "0.18.0-dev.9"
+  resolved "https://registry.yarnpkg.com/@holochain/client/-/client-0.18.0-dev.9.tgz#9055bd8cbb8fb4cd80ff0056519d240d5881e16c"
+  integrity sha512-cVqSf5Ggr4Z07NdmWc/gIulk4U2Hxw9qmTN+qJr3/V1EhCAaUp3CLgoD3rDEGHTUuTKc3raXGXUcterX8OJbOg==
+  dependencies:
+    "@bitgo/blake2b" "^3.2.4"
+    "@holochain/serialization" "^0.1.0-beta-rc.3"
+    "@msgpack/msgpack" "^2.8.0"
+    "@spartan-hc/holo-hash" "^0.7.0"
+    emittery "^1.0.1"
+    isomorphic-ws "^5.0.0"
+    js-base64 "^3.7.5"
+    libsodium-wrappers "^0.7.13"
+    lodash-es "^4.17.21"
+    ws "^8.14.2"
+
 "@holochain/serialization@^0.1.0-beta-rc.3":
   version "0.1.0-beta-rc.3"
   resolved "https://registry.yarnpkg.com/@holochain/serialization/-/serialization-0.1.0-beta-rc.3.tgz#787a785fa48e00f2d168c6d4b45a233c4800cccb"
@@ -2593,7 +2624,7 @@
   resolved "https://registry.npmjs.org/@msgpack/msgpack/-/msgpack-2.7.1.tgz"
   integrity sha512-ApwiSL2c9ObewdOE/sqt788P1C5lomBOHyO8nUBCr4ofErBCnYQ003NtJ8lS9OQZc11ximkbmgAZJjB8y6cCdA==
 
-"@msgpack/msgpack@^2.7.1", "@msgpack/msgpack@^2.7.2":
+"@msgpack/msgpack@^2.7.1", "@msgpack/msgpack@^2.7.2", "@msgpack/msgpack@^2.8.0":
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/@msgpack/msgpack/-/msgpack-2.8.0.tgz#4210deb771ee3912964f14a15ddfb5ff877e70b9"
   integrity sha512-h9u4u/jiIRKbq25PM+zymTyW6bhTzELvOoUd+AvYriWOAKpLGnIamaET3pnHYoI5iYphAHBI4ayx0MehR+VVPQ==
@@ -2676,6 +2707,13 @@
   resolved "https://registry.npmjs.org/@soda/get-current-script/-/get-current-script-1.0.2.tgz"
   integrity sha512-T7VNNlYVM1SgQ+VsMYhnDkcGmWhQdL0bDyGm5TlQ3GBXnJscEClUUOKduWTmm2zCnvNLC1hc3JpuXjs/nFOc5w==
 
+"@spartan-hc/holo-hash@^0.7.0":
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/@spartan-hc/holo-hash/-/holo-hash-0.7.0.tgz#076466fd51ac9860bab6d3fdeffc4dcb1b334abd"
+  integrity sha512-RtA+OXiteatppEvpGQ0WvAUf+MA5TLa/C8ota5S41W0xmKQfe9IQ9n/hTFRd0tBG4eYXfnz65TDDR1q3VIVOTw==
+  dependencies:
+    "@whi/xor-digest" "^0.1.0"
+
 "@storybook/addon-a11y@^6.5.6":
   version "6.5.9"
   resolved "https://registry.yarnpkg.com/@storybook/addon-a11y/-/addon-a11y-6.5.9.tgz#191fb8ea9be4feee67fd11553b98ab56ecfc1295"
@@ -4889,6 +4927,11 @@
     sprintf-js "^1.1.2"
     winston "^3.3.3"
 
+"@whi/xor-digest@^0.1.0":
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/@whi/xor-digest/-/xor-digest-0.1.0.tgz#217f61705ebc07bae85ad93b18de3c1f65a440e0"
+  integrity sha512-FKPxyYK79TIxkVHmXnyJ4IljW+5sc+HX2hxMu5+UxlN0p1vOOdwFagDOhONC4ILysm1bXhvF4cPsTGSmlTKenQ==
+
 "@xtuc/ieee754@^1.2.0":
   version "1.2.0"
   resolved "https://registry.npmjs.org/@xtuc/ieee754/-/ieee754-1.2.0.tgz"
@@ -5453,6 +5496,15 @@ axe-core@^4.2.0:
   resolved "https://registry.yarnpkg.com/axe-core/-/axe-core-4.4.2.tgz#dcf7fb6dea866166c3eab33d68208afe4d5f670c"
   integrity sha512-LVAaGp/wkkgYJcjmHsoKx4juT1aQvJyPcW09MLCjVTh3V2cc6PnyempiLMNH5iMdfIX/zdbjUx2KDjMLCTdPeA==
 
+axios@^1.4.0:
+  version "1.7.2"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-1.7.2.tgz#b625db8a7051fbea61c35a3cbb3a1daa7b9c7621"
+  integrity sha512-2A8QhOMrbomlDuiLeK9XibIBzuHeRcqqNOHp0Cyp5EoJ1IFDh+XZH3A6BkXtv0K4gFGCI0Y4BM7B1wOEi0Rmgw==
+  dependencies:
+    follow-redirects "^1.15.6"
+    form-data "^4.0.0"
+    proxy-from-env "^1.1.0"
+
 babel-core@^7.0.0-bridge.0:
   version "7.0.0-bridge.0"
   resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-7.0.0-bridge.0.tgz#95a492ddd90f9b4e9a4a1da14eb335b87b634ece"
@@ -8837,6 +8889,11 @@ follow-redirects@^1.0.0:
   resolved "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.14.4.tgz"
   integrity sha512-zwGkiSXC1MUJG/qmeIFH2HBJx9u0V46QGUe3YR1fXG8bXQxq7fLj0RjLZQ5nubr9qNJUZrH+xUcwXEoXNpfS+g==
 
+follow-redirects@^1.15.6:
+  version "1.15.6"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.15.6.tgz#7f815c0cda4249c74ff09e95ef97c23b5fd0399b"
+  integrity sha512-wWN62YITEaOpSK584EZXJafH1AGpO8RVgElfkuXbTOrPX4fIfOyEpW/CsiNd8JdYrAoOvafRTOEnvsO++qCqFA==
+
 for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/for-in/-/for-in-1.0.2.tgz"
@@ -8888,6 +8945,15 @@ form-data@^3.0.0:
     combined-stream "^1.0.8"
     mime-types "^2.1.12"
 
+form-data@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-4.0.0.tgz#93919daeaf361ee529584b9b31664dc12c9fa452"
+  integrity sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "^1.0.8"
+    mime-types "^2.1.12"
+
 form-data@~2.3.2:
   version "2.3.3"
   resolved "https://registry.npmjs.org/form-data/-/form-data-2.3.3.tgz"
@@ -11264,6 +11330,11 @@ js-base64@^3.7.3:
   resolved "https://registry.yarnpkg.com/js-base64/-/js-base64-3.7.5.tgz#21e24cf6b886f76d6f5f165bfcd69cc55b9e3fca"
   integrity sha512-3MEt5DTINKqfScXKfJFrRbxkrnk2AxPWGBL/ycjz4dK8iqiSJ06UxD8jh8xuh6p10TX4t2+7FsBYVxxQbMg+qA==
 
+js-base64@^3.7.5:
+  version "3.7.7"
+  resolved "https://registry.yarnpkg.com/js-base64/-/js-base64-3.7.7.tgz#e51b84bf78fbf5702b9541e2cb7bfcb893b43e79"
+  integrity sha512-7rCnleh0z2CkXhH67J8K1Ytz0b2Y+yxTPL+/KOJoa20hfnVQ/3/T6W/KflYI4bRHRagNeXeU2bkNGI3v1oS/lw==
+
 js-message@1.0.7:
   version "1.0.7"
   resolved "https://registry.npmjs.org/js-message/-/js-message-1.0.7.tgz"
@@ -11602,6 +11673,18 @@ levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+libsodium-wrappers@^0.7.13:
+  version "0.7.14"
+  resolved "https://registry.yarnpkg.com/libsodium-wrappers/-/libsodium-wrappers-0.7.14.tgz#b21d9e8d58de686c6318a772805ee1c5d02035a5"
+  integrity sha512-300TtsePizhJZ7HjLmWr6hLHAgJUxIGhapSw+EwfCtDuWaEmEdGXSQv6j6qFw0bs9l4vS2NH9BtOHfXAq6h5kQ==
+  dependencies:
+    libsodium "^0.7.14"
+
+libsodium@^0.7.14:
+  version "0.7.14"
+  resolved "https://registry.yarnpkg.com/libsodium/-/libsodium-0.7.14.tgz#d9daace70dbc36051b947d37999bb6337c364c88"
+  integrity sha512-/pOd7eO6oZrfORquRTC4284OUJFcMi8F3Vnc9xtRBT0teLfOUxWIItaBFF3odYjZ7nlJNwnLdUVEUFHxVyX/Sw==
+
 lines-and-columns@^1.1.6:
   version "1.1.6"
   resolved "https://registry.npmjs.org/lines-and-columns/-/lines-and-columns-1.1.6.tgz"
@@ -12395,6 +12478,16 @@ nan@^2.12.1:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.16.0.tgz#664f43e45460fb98faf00edca0bb0d7b8dce7916"
   integrity sha512-UdAqHyFngu7TfQKsCBgAA6pWDkT8MAO7d0jyOecVhN5354xbLqdn8mV9Tat9gepAupm0bt2DbeaSC8vS52MuFA==
 
+nanoassert@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/nanoassert/-/nanoassert-1.1.0.tgz#4f3152e09540fde28c76f44b19bbcd1d5a42478d"
+  integrity sha512-C40jQ3NzfkP53NsO8kEOFd79p4b9kDXQMwgiY1z8ZwrDZgUyom0AHwGegF4Dm99L+YoYhuaB0ceerUcXmqr1rQ==
+
+nanoassert@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/nanoassert/-/nanoassert-2.0.0.tgz#a05f86de6c7a51618038a620f88878ed1e490c09"
+  integrity sha512-7vO7n28+aYO4J+8w96AzhmU8G+Y/xpPDJz/se19ICsqj/momRbb9mh9ZUtkoJ5X3nTnPdhEJyc0qnM6yAsHBaA==
+
 nanoid@^3.1.23:
   version "3.1.25"
   resolved "https://registry.npmjs.org/nanoid/-/nanoid-3.1.25.tgz"
@@ -14030,6 +14123,11 @@ proxy-addr@~2.0.5:
     forwarded "0.2.0"
     ipaddr.js "1.9.1"
 
+proxy-from-env@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/proxy-from-env/-/proxy-from-env-1.1.0.tgz#e102f16ca355424865755d2c9e8ea4f24d58c3e2"
+  integrity sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==
+
 prr@~1.0.1:
   version "1.0.1"
   resolved "https://registry.npmjs.org/prr/-/prr-1.0.1.tgz"
@@ -17714,6 +17812,11 @@ ws@^7.4.6:
   resolved "https://registry.npmjs.org/ws/-/ws-7.5.5.tgz"
   integrity sha512-BAkMFcAzl8as1G/hArkxOxq3G7pjUqQ3gzYbLL0/5zNkph70e+lCoxBGnm6AW1+/aiNeV4fnKqZ8m4GZewmH2w==
 
+ws@^8.14.2:
+  version "8.18.0"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-8.18.0.tgz#0d7505a6eafe2b0e712d232b42279f53bc289bbc"
+  integrity sha512-8VbfWfHLbbwu3+N6OKsOMpBdT4kXPDDB9cJk2bJ6mh9ucxdlnNvH1e+roYkKmN9Nxw2yjz7VzeO9oOz2zJ04Pw==
+
 ws@^8.2.3:
   version "8.8.0"
   resolved "https://registry.yarnpkg.com/ws/-/ws-8.8.0.tgz#8e71c75e2f6348dbf8d78005107297056cb77769"