diff --git a/examples/all-clusters-app/all-clusters-common/BUILD.gn b/examples/all-clusters-app/all-clusters-common/BUILD.gn
index d6bbe53239f2d0..ced567e5c18f81 100644
--- a/examples/all-clusters-app/all-clusters-common/BUILD.gn
+++ b/examples/all-clusters-app/all-clusters-common/BUILD.gn
@@ -20,4 +20,5 @@ chip_data_model("all-clusters-common") {
   zap_file = "all-clusters-app.zap"
 
   zap_pregenerated_dir = "gen"
+  is_server = true
 }
diff --git a/examples/bridge-app/bridge-common/BUILD.gn b/examples/bridge-app/bridge-common/BUILD.gn
index 46b94ab8d49c7c..38c003a2a6b8f8 100644
--- a/examples/bridge-app/bridge-common/BUILD.gn
+++ b/examples/bridge-app/bridge-common/BUILD.gn
@@ -20,4 +20,5 @@ chip_data_model("bridge-common") {
   zap_file = "bridge-app.zap"
 
   zap_pregenerated_dir = "gen"
+  is_server = true
 }
diff --git a/examples/chip-tool/BUILD.gn b/examples/chip-tool/BUILD.gn
index 8bd2c3ec412f36..494a23fdf7497d 100644
--- a/examples/chip-tool/BUILD.gn
+++ b/examples/chip-tool/BUILD.gn
@@ -44,7 +44,6 @@ executable("chip-tool") {
 
   deps = [
     ":data_model",
-    "${chip_root}/src/app/server",
     "${chip_root}/src/lib",
     "${chip_root}/src/platform",
     "${chip_root}/third_party/inipp",
diff --git a/examples/chip-tool/commands/common/Command.h b/examples/chip-tool/commands/common/Command.h
index db847b9bd7d991..953ff7205da870 100644
--- a/examples/chip-tool/commands/common/Command.h
+++ b/examples/chip-tool/commands/common/Command.h
@@ -18,7 +18,6 @@
 
 #pragma once
 
-#include <app/server/DataModelHandler.h>
 #include <controller/CHIPDeviceController.h>
 #include <inet/InetInterface.h>
 #include <support/logging/CHIPLogging.h>
diff --git a/examples/chip-tool/commands/reporting/ReportingCommand.cpp b/examples/chip-tool/commands/reporting/ReportingCommand.cpp
index 6f79239c0b3354..b19d99cec1dc38 100644
--- a/examples/chip-tool/commands/reporting/ReportingCommand.cpp
+++ b/examples/chip-tool/commands/reporting/ReportingCommand.cpp
@@ -48,8 +48,6 @@ CHIP_ERROR ReportingCommand::Run(PersistentStorage & storage, NodeId localId, No
     err = mCommissioner.GetDevice(remoteId, &mDevice);
     VerifyOrExit(err == CHIP_NO_ERROR, ChipLogError(chipTool, "Init failure! No pairing for device: %" PRIu64, localId));
 
-    mDevice->SetDelegate(this);
-
     AddReportCallbacks(mEndPointId);
 
     cluster.Associate(mDevice, mEndPointId);
@@ -64,14 +62,3 @@ CHIP_ERROR ReportingCommand::Run(PersistentStorage & storage, NodeId localId, No
     mCommissioner.Shutdown();
     return err;
 }
-
-void ReportingCommand::OnMessage(PacketBufferHandle buffer)
-{
-    ChipLogDetail(chipTool, "%" PRIu64 ": Received %zu bytes", mDevice->GetDeviceId(), buffer->DataLength());
-    HandleDataModelMessage(mDevice->GetDeviceId(), std::move(buffer));
-}
-
-void ReportingCommand::OnStatusChange(void)
-{
-    ChipLogDetail(chipTool, "DeviceStatusDelegate::OnStatusChange");
-}
diff --git a/examples/chip-tool/commands/reporting/ReportingCommand.h b/examples/chip-tool/commands/reporting/ReportingCommand.h
index caaa60543cafb1..bb86cbc466c4a9 100644
--- a/examples/chip-tool/commands/reporting/ReportingCommand.h
+++ b/examples/chip-tool/commands/reporting/ReportingCommand.h
@@ -25,7 +25,7 @@
 #define CHIP_ZCL_ENDPOINT_MIN 0x00
 #define CHIP_ZCL_ENDPOINT_MAX 0xF0
 
-class ReportingCommand : public Command, public chip::Controller::DeviceStatusDelegate
+class ReportingCommand : public Command
 {
 public:
     ReportingCommand(const char * commandName) : Command(commandName)
@@ -36,10 +36,6 @@ class ReportingCommand : public Command, public chip::Controller::DeviceStatusDe
     /////////// Command Interface /////////
     CHIP_ERROR Run(PersistentStorage & storage, NodeId localId, NodeId remoteId) override;
 
-    /////////// DeviceStatusDelegate Interface /////////
-    void OnMessage(PacketBufferHandle buffer) override;
-    void OnStatusChange(void) override;
-
     virtual void AddReportCallbacks(uint8_t endPointId) = 0;
 
 private:
diff --git a/examples/chip-tool/main.cpp b/examples/chip-tool/main.cpp
index 164c8c77260d50..2730abf0ac777e 100644
--- a/examples/chip-tool/main.cpp
+++ b/examples/chip-tool/main.cpp
@@ -31,8 +31,6 @@
 // ================================================================================
 int main(int argc, char * argv[])
 {
-    InitDataModelHandler();
-
     Commands commands;
     registerCommandsDiscover(commands);
     registerCommandsPayload(commands);
diff --git a/examples/lighting-app/lighting-common/BUILD.gn b/examples/lighting-app/lighting-common/BUILD.gn
index c44f5b9875e332..4346081585b73d 100644
--- a/examples/lighting-app/lighting-common/BUILD.gn
+++ b/examples/lighting-app/lighting-common/BUILD.gn
@@ -31,4 +31,5 @@ chip_data_model("lighting-common") {
   zap_file = "lighting-app.zap"
 
   zap_pregenerated_dir = "gen"
+  is_server = true
 }
diff --git a/examples/lighting-app/nrfconnect/CMakeLists.txt b/examples/lighting-app/nrfconnect/CMakeLists.txt
index e959b4a2dbfcc5..e49a94a7af7a39 100644
--- a/examples/lighting-app/nrfconnect/CMakeLists.txt
+++ b/examples/lighting-app/nrfconnect/CMakeLists.txt
@@ -16,6 +16,7 @@
 cmake_minimum_required(VERSION 3.13.1)
 
 get_filename_component(CHIP_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/third_party/connectedhomeip REALPATH)
+get_filename_component(NLIO_ROOT ${CHIP_ROOT}/third_party/nlio/repo/include REALPATH)
 get_filename_component(NRFCONNECT_COMMON ${CHIP_ROOT}/examples/platform/nrfconnect REALPATH)
 get_filename_component(LIGHTING_COMMON ${CHIP_ROOT}/examples/lighting-app/lighting-common REALPATH)
 
@@ -38,6 +39,7 @@ target_compile_options(app PRIVATE -Werror)
 target_include_directories(app PRIVATE
                            main/include
                            ${LIGHTING_COMMON}
+                           ${NLIO_ROOT}
                            ${NRFCONNECT_COMMON}/util/include
                            ${NRFCONNECT_COMMON}/app/include)
 
@@ -68,6 +70,12 @@ target_sources(app PRIVATE
                ${CHIP_ROOT}/src/app/util/process-cluster-message.cpp
                ${CHIP_ROOT}/src/app/util/process-global-message.cpp
                ${CHIP_ROOT}/src/app/util/util.cpp
+               ${CHIP_ROOT}/src/app/server/EchoHandler.cpp
+               ${CHIP_ROOT}/src/app/server/Mdns.cpp
+               ${CHIP_ROOT}/src/app/server/OnboardingCodesUtil.cpp
+               ${CHIP_ROOT}/src/app/server/RendezvousServer.cpp
+               ${CHIP_ROOT}/src/app/server/Server.cpp
+               ${CHIP_ROOT}/src/app/server/StorablePeerConnection.cpp
                ${CHIP_ROOT}/src/app/clusters/basic/basic.cpp
                ${CHIP_ROOT}/src/app/clusters/bindings/bindings.cpp
                ${CHIP_ROOT}/src/app/clusters/general-commissioning-server/general-commissioning-server.cpp               
diff --git a/examples/lock-app/efr32/src/AppTask.cpp b/examples/lock-app/efr32/src/AppTask.cpp
index 0e350b25eb55a9..ce3230d5f76f89 100644
--- a/examples/lock-app/efr32/src/AppTask.cpp
+++ b/examples/lock-app/efr32/src/AppTask.cpp
@@ -28,7 +28,6 @@
 #include "gen/cluster-id.h"
 #include "lcd.h"
 #include "qrcodegen.h"
-#include <app/server/DataModelHandler.h>
 #include <app/server/OnboardingCodesUtil.h>
 #include <app/server/Server.h>
 #include <app/util/attribute-storage.h>
diff --git a/examples/lock-app/efr32/src/main.cpp b/examples/lock-app/efr32/src/main.cpp
index 785b8de1b5fe58..67735efdcf19d9 100644
--- a/examples/lock-app/efr32/src/main.cpp
+++ b/examples/lock-app/efr32/src/main.cpp
@@ -37,7 +37,6 @@
 
 #include "AppConfig.h"
 #include "init_efrPlatform.h"
-#include <app/server/DataModelHandler.h>
 #include <app/server/Server.h>
 
 #if DISPLAY_ENABLED
diff --git a/examples/lock-app/lock-common/BUILD.gn b/examples/lock-app/lock-common/BUILD.gn
index a0eb36cdd585e0..7e8a655f17aaf3 100644
--- a/examples/lock-app/lock-common/BUILD.gn
+++ b/examples/lock-app/lock-common/BUILD.gn
@@ -20,4 +20,5 @@ chip_data_model("lock-common") {
   zap_file = "lock-app.zap"
 
   zap_pregenerated_dir = "gen"
+  is_server = true
 }
diff --git a/examples/lock-app/nrfconnect/CMakeLists.txt b/examples/lock-app/nrfconnect/CMakeLists.txt
index cc3286bea1795c..4676e113043e1e 100644
--- a/examples/lock-app/nrfconnect/CMakeLists.txt
+++ b/examples/lock-app/nrfconnect/CMakeLists.txt
@@ -16,6 +16,7 @@
 cmake_minimum_required(VERSION 3.13.1)
 
 get_filename_component(CHIP_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/third_party/connectedhomeip REALPATH)
+get_filename_component(NLIO_ROOT ${CHIP_ROOT}/third_party/nlio/repo/include REALPATH)
 get_filename_component(NRFCONNECT_COMMON ${CHIP_ROOT}/examples/platform/nrfconnect REALPATH)
 get_filename_component(LOCK_COMMON ${CHIP_ROOT}/examples/lock-app/lock-common REALPATH)
 
@@ -38,6 +39,7 @@ project(chip-nrfconnect-lock-example)
 target_include_directories(app PRIVATE 
                            main/include 
                            ${LOCK_COMMON} 
+                           ${NLIO_ROOT}
                            ${NRFCONNECT_COMMON}/util/include
                            ${NRFCONNECT_COMMON}/app/include)
 
@@ -68,6 +70,12 @@ target_sources(app PRIVATE
                ${CHIP_ROOT}/src/app/util/process-cluster-message.cpp
                ${CHIP_ROOT}/src/app/util/process-global-message.cpp
                ${CHIP_ROOT}/src/app/util/util.cpp
+               ${CHIP_ROOT}/src/app/server/EchoHandler.cpp
+               ${CHIP_ROOT}/src/app/server/Mdns.cpp
+               ${CHIP_ROOT}/src/app/server/OnboardingCodesUtil.cpp
+               ${CHIP_ROOT}/src/app/server/RendezvousServer.cpp
+               ${CHIP_ROOT}/src/app/server/Server.cpp
+               ${CHIP_ROOT}/src/app/server/StorablePeerConnection.cpp
                ${CHIP_ROOT}/src/app/clusters/basic/basic.cpp
                ${CHIP_ROOT}/src/app/clusters/bindings/bindings.cpp
                ${CHIP_ROOT}/src/app/clusters/general-commissioning-server/general-commissioning-server.cpp
diff --git a/examples/platform/linux/BUILD.gn b/examples/platform/linux/BUILD.gn
index ff8dd7cde5b714..a8964d31b74cbb 100644
--- a/examples/platform/linux/BUILD.gn
+++ b/examples/platform/linux/BUILD.gn
@@ -31,7 +31,10 @@ source_set("app-main") {
     defines = [ "PW_RPC_ENABLED" ]
   }
 
-  public_deps = [ "${chip_root}/src/lib" ]
+  public_deps = [
+    "${chip_root}/src/app/server",
+    "${chip_root}/src/lib",
+  ]
 
   public_configs = [ ":app-main-config" ]
 }
diff --git a/examples/window-app/common/BUILD.gn b/examples/window-app/common/BUILD.gn
index 4052665e0f2b77..a481ae68d5e804 100644
--- a/examples/window-app/common/BUILD.gn
+++ b/examples/window-app/common/BUILD.gn
@@ -20,4 +20,5 @@ chip_data_model("window-common") {
   zap_file = "window-app.zap"
 
   zap_pregenerated_dir = "gen"
+  is_server = true
 }
diff --git a/src/app/chip_data_model.gni b/src/app/chip_data_model.gni
index a08807b2831dbd..4f92244c0e9786 100644
--- a/src/app/chip_data_model.gni
+++ b/src/app/chip_data_model.gni
@@ -61,6 +61,7 @@ template("chip_data_model") {
                              "cluster_sources",
                              "zap_file",
                              "use_default_client_callbacks",
+                             "is_server",
                            ])
 
     if (!defined(sources)) {
@@ -170,6 +171,10 @@ template("chip_data_model") {
       "${chip_root}/src/protocols/secure_channel",
     ]
 
+    if (defined(invoker.is_server)) {
+      public_deps += [ "${chip_root}/src/app/server" ]
+    }
+
     if (!defined(public_configs)) {
       public_configs = []
     }
diff --git a/src/app/server/DataModelHandler.cpp b/src/app/server/DataModelHandler.cpp
deleted file mode 100644
index b3b60f87f3f358..00000000000000
--- a/src/app/server/DataModelHandler.cpp
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- *
- *    Copyright (c) 2020 Project CHIP Authors
- *
- *    Licensed under the Apache License, Version 2.0 (the "License");
- *    you may not use this file except in compliance with the License.
- *    You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- *    Unless required by applicable law or agreed to in writing, software
- *    distributed under the License is distributed on an "AS IS" BASIS,
- *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *    See the License for the specific language governing permissions and
- *    limitations under the License.
- */
-
-/**
- * @file
- *   This file implements the handler for data model messages.
- */
-
-#include <app/server/DataModelHandler.h>
-
-#if __has_include("gen/endpoint_config.h")
-#define USE_ZAP_CONFIG 1
-#include <app/util/attribute-storage.h>
-#include <app/util/util.h>
-#endif
-#include <support/logging/CHIPLogging.h>
-
-#ifdef EMBER_AF_PLUGIN_REPORTING_SERVER
-void emberAfPluginReportingStackStatusCallback(EmberStatus status);
-#endif
-#ifdef EMBER_AF_PLUGIN_TEMPERATURE_MEASUREMENT_SERVER
-void emberAfPluginTemperatureMeasurementServerStackStatusCallback(EmberStatus status);
-#endif
-#ifdef EMBER_AF_PLUGIN_IAS_ZONE_SERVER
-void emberAfPluginIasZoneServerStackStatusCallback(EmberStatus status);
-#endif
-
-using namespace ::chip;
-
-void InitDataModelHandler()
-{
-#ifdef USE_ZAP_CONFIG
-    ChipLogProgress(Zcl, "Using ZAP configuration...");
-    emberAfEndpointConfigure();
-    emberAfInit();
-
-#if defined(EMBER_AF_PLUGIN_REPORTING_SERVER) || defined(EMBER_AF_PLUGIN_TEMPERATURE_MEASUREMENT_SERVER) ||                        \
-    defined(EMBER_AF_PLUGIN_IAS_ZONE_SERVER)
-    EmberStatus status = EMBER_NETWORK_UP;
-#endif
-
-#ifdef EMBER_AF_PLUGIN_REPORTING_SERVER
-    emberAfPluginReportingStackStatusCallback(status);
-#endif
-#ifdef EMBER_AF_PLUGIN_TEMPERATURE_MEASUREMENT_SERVER
-    emberAfPluginTemperatureMeasurementServerStackStatusCallback(status);
-#endif
-#ifdef EMBER_AF_PLUGIN_IAS_ZONE_SERVER
-    emberAfPluginIasZoneServerStackStatusCallback(status);
-#endif
-#endif
-}
-
-void HandleDataModelMessage(NodeId nodeId, System::PacketBufferHandle buffer)
-{
-#ifdef USE_ZAP_CONFIG
-    EmberApsFrame frame;
-    bool ok = extractApsFrame(buffer->Start(), buffer->DataLength(), &frame) > 0;
-    if (ok)
-    {
-        ChipLogDetail(Zcl, "APS frame processing success!");
-    }
-    else
-    {
-        ChipLogDetail(Zcl, "APS frame processing failure!");
-        return;
-    }
-
-    uint8_t * message;
-    uint16_t messageLen = extractMessage(buffer->Start(), buffer->DataLength(), &message);
-    ok                  = emberAfProcessMessage(&frame,
-                               0, // type
-                               message, messageLen,
-                               nodeId, // source identifier
-                               NULL);
-
-    if (ok)
-    {
-        ChipLogDetail(Zcl, "Data model processing success!");
-    }
-    else
-    {
-        ChipLogDetail(Zcl, "Data model processing failure!");
-    }
-#endif
-}
diff --git a/src/app/server/Server.cpp b/src/app/server/Server.cpp
index dc4f342074e14d..c300b4df8a9d64 100644
--- a/src/app/server/Server.cpp
+++ b/src/app/server/Server.cpp
@@ -20,10 +20,10 @@
 #include <app/server/Server.h>
 
 #include <app/InteractionModelEngine.h>
-#include <app/server/DataModelHandler.h>
 #include <app/server/EchoHandler.h>
 #include <app/server/RendezvousServer.h>
 #include <app/server/StorablePeerConnection.h>
+#include <app/util/DataModelHandler.h>
 
 #include <ble/BLEEndPoint.h>
 #include <core/CHIPPersistentStorageDelegate.h>
@@ -407,16 +407,6 @@ SecurePairingUsingTestSecret gTestPairing;
 
 } // namespace
 
-SecureSessionMgr & chip::SessionManager()
-{
-    return gSessions;
-}
-
-Messaging::ExchangeManager & chip::ExchangeManager()
-{
-    return gExchangeMgr;
-}
-
 CHIP_ERROR OpenDefaultPairingWindow(ResetAdmins resetAdmins, chip::PairingWindowAdvertisement advertisementMode)
 {
     // TODO(cecille): If this is re-called when the window is already open, what should happen?
@@ -489,7 +479,7 @@ void InitServer(AppDelegate * delegate)
 
     chip::Platform::MemoryInit();
 
-    InitDataModelHandler();
+    InitDataModelHandler(&gExchangeMgr);
     gCallbacks.SetDelegate(delegate);
 
 #if CHIP_DEVICE_LAYER_TARGET_DARWIN
diff --git a/src/app/server/Server.h b/src/app/server/Server.h
index e00f6bfe7a5ab6..8fc253d02b558e 100644
--- a/src/app/server/Server.h
+++ b/src/app/server/Server.h
@@ -64,10 +64,6 @@ enum class PairingWindowAdvertisement
     kBle,
     kMdns,
 };
-
-SecureSessionMgr & SessionManager();
-Messaging::ExchangeManager & ExchangeManager();
-
 } // namespace chip
 
 /**
diff --git a/src/app/util/DataModelHandler.cpp b/src/app/util/DataModelHandler.cpp
index b3b60f87f3f358..7ee94246b85897 100644
--- a/src/app/util/DataModelHandler.cpp
+++ b/src/app/util/DataModelHandler.cpp
@@ -20,7 +20,7 @@
  *   This file implements the handler for data model messages.
  */
 
-#include <app/server/DataModelHandler.h>
+#include <app/util/DataModelHandler.h>
 
 #if __has_include("gen/endpoint_config.h")
 #define USE_ZAP_CONFIG 1
@@ -41,12 +41,12 @@ void emberAfPluginIasZoneServerStackStatusCallback(EmberStatus status);
 
 using namespace ::chip;
 
-void InitDataModelHandler()
+void InitDataModelHandler(chip::Messaging::ExchangeManager * exchangeManager)
 {
 #ifdef USE_ZAP_CONFIG
     ChipLogProgress(Zcl, "Using ZAP configuration...");
     emberAfEndpointConfigure();
-    emberAfInit();
+    emberAfInit(exchangeManager);
 
 #if defined(EMBER_AF_PLUGIN_REPORTING_SERVER) || defined(EMBER_AF_PLUGIN_TEMPERATURE_MEASUREMENT_SERVER) ||                        \
     defined(EMBER_AF_PLUGIN_IAS_ZONE_SERVER)
diff --git a/src/app/server/DataModelHandler.h b/src/app/util/DataModelHandler.h
similarity index 92%
rename from src/app/server/DataModelHandler.h
rename to src/app/util/DataModelHandler.h
index b6085e80ab45c5..e0a600111b1b83 100644
--- a/src/app/server/DataModelHandler.h
+++ b/src/app/util/DataModelHandler.h
@@ -22,6 +22,7 @@
 
 #pragma once
 
+#include <messaging/ExchangeMgr.h>
 #include <system/SystemPacketBuffer.h>
 #include <transport/raw/MessageHeader.h>
 
@@ -30,7 +31,7 @@
  * data model messages.
  *
  */
-void InitDataModelHandler();
+void InitDataModelHandler(chip::Messaging::ExchangeManager * exchangeMgr);
 
 /**
  * Handle a message that should be processed via our data model processing
diff --git a/src/app/util/chip-message-send.cpp b/src/app/util/chip-message-send.cpp
index 07f3e810fcc65e..8fd9ba88a20bd3 100644
--- a/src/app/util/chip-message-send.cpp
+++ b/src/app/util/chip-message-send.cpp
@@ -28,7 +28,6 @@
 #include <messaging/ExchangeMgr.h>
 #include <protocols/Protocols.h>
 #include <support/logging/CHIPLogging.h>
-#include <transport/SecureSessionMgr.h>
 #include <transport/raw/MessageHeader.h>
 
 using namespace chip;
@@ -49,8 +48,7 @@ class DeviceExchangeDelegate : public Messaging::ExchangeDelegate
     void OnResponseTimeout(Messaging::ExchangeContext * ec) override {}
 };
 
-extern SecureSessionMgr & SessionManager();
-extern Messaging::ExchangeManager & ExchangeManager();
+extern Messaging::ExchangeManager * ExchangeManager();
 } // namespace chip
 
 EmberStatus chipSendUnicast(NodeId destination, EmberApsFrame * apsFrame, uint16_t messageLength, uint8_t * message)
@@ -88,8 +86,14 @@ EmberStatus chipSendUnicast(NodeId destination, EmberApsFrame * apsFrame, uint16
     memcpy(buffer->Start() + frameSize, message, messageLength);
     buffer->SetDataLength(dataLength);
 
-    // TODO: temprary create a handle from node id, will be fix in PR 3602
-    Messaging::ExchangeContext * exchange = ExchangeManager().NewContext({ destination, Transport::kAnyKeyId, 0 }, nullptr);
+    // TODO: temporary create a handle from node id, will be fix in PR 3602
+    Messaging::ExchangeManager * exchangeMgr = ExchangeManager();
+    if (exchangeMgr == nullptr)
+    {
+        return EMBER_DELIVERY_FAILED;
+    }
+
+    Messaging::ExchangeContext * exchange = exchangeMgr->NewContext({ destination, Transport::kAnyKeyId, 0 }, nullptr);
     if (exchange == nullptr)
     {
         return EMBER_DELIVERY_FAILED;
diff --git a/src/app/util/util.cpp b/src/app/util/util.cpp
index 1b59dc186e7858..2ba6e603fd1692 100644
--- a/src/app/util/util.cpp
+++ b/src/app/util/util.cpp
@@ -100,6 +100,9 @@ EmberAfClusterCommand curCmd;
 // to NULL when the function exits.
 EmberAfClusterCommand * emAfCurrentCommand;
 
+// A pointer to the global exchange manager
+chip::Messaging::ExchangeManager * emAfExchangeMgr = nullptr;
+
 // DEPRECATED.
 uint8_t emberAfIncomingZclSequenceNumber = 0xFF;
 
@@ -266,13 +269,15 @@ static void prepareForResponse(const EmberAfClusterCommand * cmd)
 // ****************************************
 // Initialize Clusters
 // ****************************************
-void emberAfInit(void)
+void emberAfInit(chip::Messaging::ExchangeManager * exchangeMgr)
 {
     uint8_t i;
 #ifdef EMBER_AF_ENABLE_STATISTICS
     afNumPktsSent = 0;
 #endif
 
+    emAfExchangeMgr = exchangeMgr;
+
     for (i = 0; i < EMBER_SUPPORTED_NETWORKS; i++)
     {
         // FIXME: Do we need to support more than one network?
@@ -1240,3 +1245,8 @@ uint8_t emberAfMake8bitEncodedChanPg(uint8_t page, uint8_t channel)
         return channel | ENCODED_8BIT_CHANPG_PAGE_MASK_PAGE_0;
     }
 }
+
+chip::Messaging::ExchangeManager * chip::ExchangeManager()
+{
+    return emAfExchangeMgr;
+}
diff --git a/src/app/util/util.h b/src/app/util/util.h
index aa0d45139112c1..085ac22591c4d0 100644
--- a/src/app/util/util.h
+++ b/src/app/util/util.h
@@ -48,6 +48,7 @@
 #pragma once
 
 #include <inttypes.h>
+#include <messaging/ExchangeMgr.h>
 
 // User asserts can override SLAB_ASSERT and should be defined as follows:
 // void userAssert (int file, int line);                   // declaration
@@ -141,7 +142,7 @@ uint16_t emberAfGetMfgCodeFromCurrentCommand(void);
 // EMBER_AF_MAXIMUM_SEND_PAYLOAD_LENGTH is defined in config.h
 #define EMBER_AF_RESPONSE_BUFFER_LEN EMBER_AF_MAXIMUM_SEND_PAYLOAD_LENGTH
 
-void emberAfInit(void);
+void emberAfInit(chip::Messaging::ExchangeManager * exchangeContext);
 void emberAfTick(void);
 uint16_t emberAfFindClusterNameIndex(chip::ClusterId cluster);
 uint16_t emberAfFindClusterNameIndexWithMfgCode(chip::ClusterId cluster, uint16_t mfgCode);
@@ -286,3 +287,7 @@ uint8_t emberAfGetChannelFrom8bitEncodedChanPg(uint8_t chanPg);
  * @return 8-bit encoded channel-page, 0xFF if invalid
  */
 uint8_t emberAfMake8bitEncodedChanPg(uint8_t page, uint8_t channel);
+
+namespace chip {
+chip::Messaging::ExchangeManager * ExchangeManager();
+} // namespace chip
diff --git a/src/controller/CHIPDevice.cpp b/src/controller/CHIPDevice.cpp
index b8f2822f1f479e..60151e0d7cd62b 100644
--- a/src/controller/CHIPDevice.cpp
+++ b/src/controller/CHIPDevice.cpp
@@ -36,7 +36,7 @@
 #endif // CHIP_SYSTEM_CONFIG_USE_LWIP
 
 #include <app/CommandSender.h>
-#include <app/server/DataModelHandler.h>
+#include <app/util/DataModelHandler.h>
 #include <core/CHIPCore.h>
 #include <core/CHIPEncoding.h>
 #include <core/CHIPSafeCasts.h>
diff --git a/src/controller/CHIPDeviceController.cpp b/src/controller/CHIPDeviceController.cpp
index 34a9dbfa319fd0..624f3bfc46206c 100644
--- a/src/controller/CHIPDeviceController.cpp
+++ b/src/controller/CHIPDeviceController.cpp
@@ -40,7 +40,7 @@
 #endif
 
 #include <app/InteractionModelEngine.h>
-#include <app/server/DataModelHandler.h>
+#include <app/util/DataModelHandler.h>
 #include <core/CHIPCore.h>
 #include <core/CHIPEncoding.h>
 #include <core/CHIPSafeCasts.h>
@@ -196,7 +196,7 @@ CHIP_ERROR DeviceController::Init(NodeId localDeviceId, ControllerInitParams par
     }
 #endif // CHIP_DEVICE_CONFIG_ENABLE_MDNS
 
-    InitDataModelHandler();
+    InitDataModelHandler(mExchangeMgr);
 
     mState         = State::Initialized;
     mLocalDeviceId = localDeviceId;
diff --git a/src/controller/EmptyDataModelHandler.cpp b/src/controller/EmptyDataModelHandler.cpp
index 325a36640eb1f2..6565486adf77c7 100644
--- a/src/controller/EmptyDataModelHandler.cpp
+++ b/src/controller/EmptyDataModelHandler.cpp
@@ -22,7 +22,7 @@
 // defaults so that the controller library is self-sufficient and a controller
 // which has not yet implemented ZCL handlers builds without linker errors.
 
-#include <app/server/DataModelHandler.h>
+#include <app/util/DataModelHandler.h>
 
-__attribute__((weak)) void InitDataModelHandler() {}
+__attribute__((weak)) void InitDataModelHandler(chip::Messaging::ExchangeManager * exchangeMgr) {}
 __attribute__((weak)) void HandleDataModelMessage(chip::NodeId nodeId, chip::System::PacketBufferHandle buffer) {}
diff --git a/src/lib/BUILD.gn b/src/lib/BUILD.gn
index 19c6a1678dd88a..685704e8cc7e67 100644
--- a/src/lib/BUILD.gn
+++ b/src/lib/BUILD.gn
@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import("//build_overrides/chip.gni")
-import("${chip_root}/src/platform/device.gni")
 
 declare_args() {
   chip_build_shell_lib = false
@@ -45,10 +44,6 @@ static_library("lib") {
     public_deps += [ "${chip_root}/src/lib/shell" ]
   }
 
-  if (chip_device_platform != "none") {
-    public_deps += [ "${chip_root}/src/app/server" ]
-  }
-
   cflags = [ "-Wconversion" ]
 
   output_name = "libCHIP"