diff --git a/common/src/main/java/org/tron/common/parameter/CommonParameter.java b/common/src/main/java/org/tron/common/parameter/CommonParameter.java
index eeb92fdbd60..3f1b623fca1 100644
--- a/common/src/main/java/org/tron/common/parameter/CommonParameter.java
+++ b/common/src/main/java/org/tron/common/parameter/CommonParameter.java
@@ -295,9 +295,6 @@ public class CommonParameter {
   public String trustNodeAddr; // clearParam: ""
   @Getter
   @Setter
-  public boolean walletExtensionApi;
-  @Getter
-  @Setter
   public boolean estimateEnergy;
   @Getter
   @Setter
diff --git a/common/src/main/java/org/tron/core/config/args/NodeConfig.java b/common/src/main/java/org/tron/core/config/args/NodeConfig.java
index 91945b5a73b..9d3ae5449ae 100644
--- a/common/src/main/java/org/tron/core/config/args/NodeConfig.java
+++ b/common/src/main/java/org/tron/core/config/args/NodeConfig.java
@@ -26,7 +26,6 @@ public class NodeConfig {
 
   // ---- Flat scalar fields (auto-bound by ConfigBeanFactory) ----
   private String trustNode = "";
-  private boolean walletExtensionApi = false;
   private int syncFetchBatchNum = 2000;
   private int maxPendingBlockSize = 500;
   private int validateSignThreadNum = 0; // 0 = auto (availableProcessors)
@@ -327,6 +326,12 @@ public static NodeConfig fromConfig(Config config) {
       nc.maxConnectionsWithSameIp = section.getInt("maxActiveNodesWithSameIp");
     }
 
+    // node.walletExtensionApi (removed): the WalletExtension gRPC service no longer exists
+    if (section.hasPath("walletExtensionApi")) {
+      logger.warn("Configuring [node.walletExtensionApi] has been removed and is ignored. "
+          + "The WalletExtension gRPC service no longer exists.");
+    }
+
     // Legacy key fallback: node.allowShieldedTransactionApi wins fullNodeAllowShieldedTransaction
     if (section.hasPath("allowShieldedTransactionApi")) {
       nc.allowShieldedTransactionApi =
diff --git a/common/src/main/resources/reference.conf b/common/src/main/resources/reference.conf
index 7c5ee1da8a6..01d110208a0 100644
--- a/common/src/main/resources/reference.conf
+++ b/common/src/main/resources/reference.conf
@@ -185,9 +185,6 @@ node {
   # Trust node for solidity node (example: "127.0.0.1:50051").
   trustNode = ""
 
-  # Expose extension api to public or not
-  walletExtensionApi = false
-
   listen.port = 18888   # P2P listen port.
   fetchBlock.timeout = 500 # Block fetch timeout (ms).
 
diff --git a/framework/src/main/java/org/tron/core/config/args/Args.java b/framework/src/main/java/org/tron/core/config/args/Args.java
index 8d56a2193f0..a63d3a647d9 100644
--- a/framework/src/main/java/org/tron/core/config/args/Args.java
+++ b/framework/src/main/java/org/tron/core/config/args/Args.java
@@ -598,7 +598,6 @@ private static void applyNodeConfig(NodeConfig nc) {
     PARAMETER.trustNodeAddr = nc.getTrustNode();
 
     PARAMETER.validateSignThreadNum = nc.getValidateSignThreadNum();
-    PARAMETER.walletExtensionApi = nc.isWalletExtensionApi();
     PARAMETER.isOpenFullTcpDisconnect = nc.isOpenFullTcpDisconnect();
     PARAMETER.nodeDetectEnable = nc.isNodeDetectEnable();
 
diff --git a/framework/src/main/java/org/tron/core/services/RpcApiService.java b/framework/src/main/java/org/tron/core/services/RpcApiService.java
index b9cb05a3b14..06d00c15b82 100755
--- a/framework/src/main/java/org/tron/core/services/RpcApiService.java
+++ b/framework/src/main/java/org/tron/core/services/RpcApiService.java
@@ -63,13 +63,10 @@
 import org.tron.api.GrpcAPI.TransactionExtention;
 import org.tron.api.GrpcAPI.TransactionIdList;
 import org.tron.api.GrpcAPI.TransactionInfoList;
-import org.tron.api.GrpcAPI.TransactionList;
-import org.tron.api.GrpcAPI.TransactionListExtention;
 import org.tron.api.GrpcAPI.TransactionSignWeight;
 import org.tron.api.GrpcAPI.ViewingKeyMessage;
 import org.tron.api.GrpcAPI.WitnessList;
 import org.tron.api.MonitorGrpc;
-import org.tron.api.WalletExtensionGrpc;
 import org.tron.api.WalletGrpc.WalletImplBase;
 import org.tron.api.WalletSolidityGrpc.WalletSolidityImplBase;
 import org.tron.common.application.RpcService;
@@ -199,9 +196,6 @@ protected void addService(NettyServerBuilder serverBuilder) {
     CommonParameter parameter = Args.getInstance();
     if (parameter.isSolidityNode()) {
       serverBuilder.addService(walletSolidityApi);
-      if (parameter.isWalletExtensionApi()) {
-        serverBuilder.addService(new WalletExtensionApi());
-      }
     } else {
       serverBuilder.addService(walletApi);
     }
@@ -935,23 +929,6 @@ public void getEnergyPrices(EmptyMessage request,
     }
   }
 
-  /**
-   * WalletExtensionApi.
-   */
-  public class WalletExtensionApi extends WalletExtensionGrpc.WalletExtensionImplBase {
-
-    private TransactionListExtention transactionList2Extention(TransactionList transactionList) {
-      if (transactionList == null) {
-        return null;
-      }
-      TransactionListExtention.Builder builder = TransactionListExtention.newBuilder();
-      for (Transaction transaction : transactionList.getTransactionList()) {
-        builder.addTransaction(transaction2Extention(transaction));
-      }
-      return builder.build();
-    }
-  }
-
   /**
    * WalletApi.
    */
diff --git a/framework/src/main/java/org/tron/core/services/http/Util.java b/framework/src/main/java/org/tron/core/services/http/Util.java
index afeaf3b2a66..13bbca8613c 100644
--- a/framework/src/main/java/org/tron/core/services/http/Util.java
+++ b/framework/src/main/java/org/tron/core/services/http/Util.java
@@ -36,7 +36,6 @@
 import org.tron.api.GrpcAPI.TransactionApprovedList;
 import org.tron.api.GrpcAPI.TransactionExtention;
 import org.tron.api.GrpcAPI.TransactionIdList;
-import org.tron.api.GrpcAPI.TransactionList;
 import org.tron.api.GrpcAPI.TransactionSignWeight;
 import org.tron.common.crypto.Hash;
 import org.tron.common.parameter.CommonParameter;
@@ -173,18 +172,6 @@ public static JSONObject printBlockToJSON(Block block, boolean selfType) {
     return jsonObject;
   }
 
-  public static String printTransactionList(TransactionList list, boolean selfType) {
-    List<Transaction> transactions = list.getTransactionList();
-    JSONObject jsonObject = JSONObject.outboundParseObject(
-        JsonFormat.printToString(list, selfType));
-    JSONArray jsonArray = new JSONArray();
-    transactions.stream()
-        .forEach(transaction -> jsonArray.add(printTransactionToJSON(transaction, selfType)));
-    jsonObject.put(TRANSACTION, jsonArray);
-
-    return jsonObject.toJSONString();
-  }
-
   public static String printTransactionIdList(TransactionIdList list, boolean selfType) {
     JSONObject jsonObject = JSONObject.outboundParseObject(
         JsonFormat.printToString(list, selfType));
diff --git a/framework/src/main/resources/config.conf b/framework/src/main/resources/config.conf
index 1176dd46311..ddd79c7a0a3 100644
--- a/framework/src/main/resources/config.conf
+++ b/framework/src/main/resources/config.conf
@@ -78,9 +78,6 @@ node.metrics = {
 node {
   trustNode = "127.0.0.1:50051"
 
-  # expose extension api to public or not
-  walletExtensionApi = true
-
   listen.port = 18888
 
   fetchBlock.timeout = 200
diff --git a/framework/src/test/java/org/tron/common/ParameterTest.java b/framework/src/test/java/org/tron/common/ParameterTest.java
index 0b66c96462c..250738c127a 100644
--- a/framework/src/test/java/org/tron/common/ParameterTest.java
+++ b/framework/src/test/java/org/tron/common/ParameterTest.java
@@ -168,8 +168,6 @@ public void testCommonParameter() {
     assertEquals(1, parameter.getForbidTransferToContract());
     parameter.setTrustNodeAddr("address");
     assertEquals("address", parameter.getTrustNodeAddr());
-    parameter.setWalletExtensionApi(false);
-    assertFalse(parameter.isWalletExtensionApi());
     parameter.setEstimateEnergy(false);
     assertFalse(parameter.isEstimateEnergy());
     parameter.setEstimateEnergyMaxRetry(2);
diff --git a/framework/src/test/java/org/tron/common/utils/client/GrpcClient.java b/framework/src/test/java/org/tron/common/utils/client/GrpcClient.java
index 139485e4e2b..c8dd6711f42 100644
--- a/framework/src/test/java/org/tron/common/utils/client/GrpcClient.java
+++ b/framework/src/test/java/org/tron/common/utils/client/GrpcClient.java
@@ -8,7 +8,6 @@
 
 import org.tron.api.GrpcAPI;
 import org.tron.api.GrpcAPI.AccountNetMessage;
-import org.tron.api.GrpcAPI.AccountPaginated;
 import org.tron.api.GrpcAPI.AssetIssueList;
 import org.tron.api.GrpcAPI.BlockLimit;
 import org.tron.api.GrpcAPI.BlockList;
@@ -17,9 +16,7 @@
 import org.tron.api.GrpcAPI.NodeList;
 import org.tron.api.GrpcAPI.NumberMessage;
 import org.tron.api.GrpcAPI.PaginatedMessage;
-import org.tron.api.GrpcAPI.TransactionList;
 import org.tron.api.GrpcAPI.WitnessList;
-import org.tron.api.WalletExtensionGrpc;
 import org.tron.api.WalletGrpc;
 import org.tron.api.WalletSolidityGrpc;
 import org.tron.common.utils.ByteArray;
@@ -42,7 +39,6 @@ public class GrpcClient {
   private ManagedChannel channelSolidity = null;
   private WalletGrpc.WalletBlockingStub blockingStubFull = null;
   private WalletSolidityGrpc.WalletSolidityBlockingStub blockingStubSolidity = null;
-  private WalletExtensionGrpc.WalletExtensionBlockingStub blockingStubExtension = null;
 
   //  public GrpcClient(String host, int port) {
   //    channel = ManagedChannelBuilder.forAddress(host, port)
@@ -67,7 +63,6 @@ public GrpcClient(String fullnode, String soliditynode) {
           .usePlaintext()
           .build();
       blockingStubSolidity = WalletSolidityGrpc.newBlockingStub(channelSolidity);
-      blockingStubExtension = WalletExtensionGrpc.newBlockingStub(channelSolidity);
     }
   }
 
@@ -284,56 +279,6 @@ public Optional<NodeList> listNodes() {
       }
    }*/
 
-  /*    public Optional<AssetIssueList> getAssetIssueListByTimestamp(long time) {
-        NumberMessage.Builder timeStamp = NumberMessage.newBuilder();
-        timeStamp.setNum(time);
-        AssetIssueList assetIssueList = blockingStubSolidity
-        .getAssetIssueListByTimestamp(timeStamp.build());
-        return Optional.ofNullable(assetIssueList);
-    }*/
-  /*    public Optional<TransactionList> getTransactionsByTimestamp(
-        long start, long end, int offset , int limit) {
-        TimeMessage.Builder timeMessage = TimeMessage.newBuilder();
-        timeMessage.setBeginInMilliseconds(start);
-        timeMessage.setEndInMilliseconds(end);
-        TimePaginatedMessage.Builder timePageMessage = TimePaginatedMessage.newBuilder();
-        timePageMessage.setTimeMessage(timeMessage);
-        timePageMessage.setOffset(offset);
-        timePageMessage.setLimit(limit);
-        TransactionList transactionList = blockingStubExtension
-        .getTransactionsByTimestamp(timePageMessage.build());
-        return Optional.ofNullable(transactionList);
-    }*/
-
-  /**
-   * constructor.
-   */
-
-  public Optional<TransactionList> getTransactionsFromThis(byte[] address) {
-    ByteString addressBs = ByteString.copyFrom(address);
-    Account account = Account.newBuilder().setAddress(addressBs).build();
-    AccountPaginated.Builder builder = AccountPaginated.newBuilder().setAccount(account);
-    builder.setLimit(1000);
-    builder.setOffset(0);
-    TransactionList transactionList = blockingStubExtension
-        .getTransactionsFromThis(builder.build());
-    return Optional.ofNullable(transactionList);
-  }
-
-  /**
-   * constructor.
-   */
-
-  public Optional<TransactionList> getTransactionsToThis(byte[] address) {
-    ByteString addressBs = ByteString.copyFrom(address);
-    Account account = Account.newBuilder().setAddress(addressBs).build();
-    AccountPaginated.Builder builder = AccountPaginated.newBuilder().setAccount(account);
-    builder.setLimit(1000);
-    builder.setOffset(0);
-    TransactionList transactionList = blockingStubExtension.getTransactionsToThis(builder.build());
-    return Optional.ofNullable(transactionList);
-  }
-
   /*    public Optional<Transaction> getTransactionById(String txID){
         ByteString bsTxid = ByteString.copyFrom(ByteArray.fromHexString(txID));
         BytesMessage request = BytesMessage.newBuilder().setValue(bsTxid).build();
diff --git a/framework/src/test/java/org/tron/common/utils/client/WalletClient.java b/framework/src/test/java/org/tron/common/utils/client/WalletClient.java
index 9d9a68da49d..168099182f5 100644
--- a/framework/src/test/java/org/tron/common/utils/client/WalletClient.java
+++ b/framework/src/test/java/org/tron/common/utils/client/WalletClient.java
@@ -22,7 +22,6 @@
 import org.tron.api.GrpcAPI.AssetIssueList;
 import org.tron.api.GrpcAPI.BlockList;
 import org.tron.api.GrpcAPI.NodeList;
-import org.tron.api.GrpcAPI.TransactionList;
 import org.tron.api.GrpcAPI.WitnessList;
 import org.tron.common.crypto.ECKey;
 import org.tron.common.parameter.CommonParameter;
@@ -647,14 +646,6 @@ public static Optional<NodeList> listNodes() {
     return rpcCli.listNodes();
   }
 
-  public static Optional<TransactionList> getTransactionsFromThis(byte[] address) {
-    return rpcCli.getTransactionsFromThis(address);
-  }
-
-  public static Optional<TransactionList> getTransactionsToThis(byte[] address) {
-    return rpcCli.getTransactionsToThis(address);
-  }
-
   public static Block getBlock(long blockNum) {
     return rpcCli.getBlock(blockNum);
   }
@@ -701,15 +692,6 @@ private Transaction signTransaction(Transaction transaction) {
     return TransactionUtils.sign(transaction, this.ecKey);
   }
 
-  /*    public static Optional<AssetIssueList> getAssetIssueListByTimestamp(long timestamp) {
-        return rpcCli.getAssetIssueListByTimestamp(timestamp);
-  }*/
-
-  /*    public static Optional<TransactionList> getTransactionsByTimestamp(
-  long start, long end, int offset, int limit) {
-        return rpcCli.getTransactionsByTimestamp(start, end, offset, limit);
-  }*/
-
   /**
    * constructor.
    */
diff --git a/framework/src/test/java/org/tron/common/utils/client/utils/HttpMethed.java b/framework/src/test/java/org/tron/common/utils/client/utils/HttpMethed.java
index cea17b0c033..0f7cf9eeb7e 100644
--- a/framework/src/test/java/org/tron/common/utils/client/utils/HttpMethed.java
+++ b/framework/src/test/java/org/tron/common/utils/client/utils/HttpMethed.java
@@ -1910,50 +1910,6 @@ public static HttpResponse getTransactionCountByBlocknumFromPbft(
     return response;
   }
 
-  /** constructor. */
-  public static HttpResponse getTransactionsFromThisFromSolidity(
-      String httpSolidityNode, byte[] fromAddress, long offset, long limit) {
-    try {
-      Map<String, String> map1 = new HashMap<String, String>();
-      Map<String, Object> map = new HashMap<String, Object>();
-      map1.put("address", ByteArray.toHexString(fromAddress));
-      map.put("account", map1);
-      map.put("offset", offset);
-      map.put("limit", limit);
-      String requestUrl = "http://" + httpSolidityNode + "/walletextension/gettransactionsfromthis";
-      String jsonStr = new Gson().toJson(map);
-      JsonObject jsonObj = new JsonParser().parse(jsonStr).getAsJsonObject();
-      response = createConnect(requestUrl, jsonObj);
-    } catch (Exception e) {
-      e.printStackTrace();
-      httppost.releaseConnection();
-      return null;
-    }
-    return response;
-  }
-
-  /** constructor. */
-  public static HttpResponse getTransactionsToThisFromSolidity(
-      String httpSolidityNode, byte[] toAddress, long offset, long limit) {
-    try {
-      Map<String, String> map1 = new HashMap<String, String>();
-      Map<String, Object> map = new HashMap<String, Object>();
-      map1.put("address", ByteArray.toHexString(toAddress));
-      map.put("account", map1);
-      map.put("offset", offset);
-      map.put("limit", limit);
-      String requestUrl = "http://" + httpSolidityNode + "/walletextension/gettransactionstothis";
-      String jsonStr = new Gson().toJson(map);
-      JsonObject jsonObj = new JsonParser().parse(jsonStr).getAsJsonObject();
-      response = createConnect(requestUrl, jsonObj);
-    } catch (Exception e) {
-      e.printStackTrace();
-      httppost.releaseConnection();
-      return null;
-    }
-    return response;
-  }
-
   /** constructor. */
   public static HttpResponse getAssetIssueByName(String httpNode, String name) {
     try {
diff --git a/framework/src/test/java/org/tron/core/config/args/ArgsTest.java b/framework/src/test/java/org/tron/core/config/args/ArgsTest.java
index 2118140b45b..8d6b0bfaa91 100644
--- a/framework/src/test/java/org/tron/core/config/args/ArgsTest.java
+++ b/framework/src/test/java/org/tron/core/config/args/ArgsTest.java
@@ -15,6 +15,10 @@
 
 package org.tron.core.config.args;
 
+import ch.qos.logback.classic.Level;
+import ch.qos.logback.classic.Logger;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.read.ListAppender;
 import com.google.common.collect.Lists;
 import com.typesafe.config.Config;
 import com.typesafe.config.ConfigFactory;
@@ -31,6 +35,7 @@
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
+import org.slf4j.LoggerFactory;
 import org.tron.common.TestConstants;
 import org.tron.common.args.GenesisBlock;
 import org.tron.common.parameter.CommonParameter;
@@ -369,6 +374,46 @@ public void testConfigStorageDefaults() {
     Args.clearParam();
   }
 
+  /**
+   * The removed node.walletExtensionApi key must stay harmless in operator configs:
+   * binding ignores it and fromConfig logs a removal warning. Lives here rather than
+   * NodeConfigTest because module jacoco reports only aggregate framework execution data.
+   */
+  @Test
+  public void testRemovedWalletExtensionApiKeyWarnsWhenTrue() {
+    Assert.assertEquals(1, countWalletExtensionApiWarnings("node { walletExtensionApi = true }"));
+  }
+
+  @Test
+  public void testRemovedWalletExtensionApiKeyWarnsWhenFalse() {
+    Assert.assertEquals(1, countWalletExtensionApiWarnings("node { walletExtensionApi = false }"));
+  }
+
+  @Test
+  public void testNoWalletExtensionApiWarningWhenKeyAbsent() {
+    Assert.assertEquals(0, countWalletExtensionApiWarnings(""));
+  }
+
+  private static long countWalletExtensionApiWarnings(String hocon) {
+    Config config = ConfigFactory.parseString(hocon)
+        .withFallback(ConfigFactory.defaultReference());
+    Logger logger = (Logger) LoggerFactory.getLogger(NodeConfig.class);
+    ListAppender<ILoggingEvent> appender = new ListAppender<>();
+    appender.start();
+    logger.addAppender(appender);
+    try {
+      Assert.assertNotNull(NodeConfig.fromConfig(config));
+    } finally {
+      logger.detachAppender(appender);
+      appender.stop();
+    }
+    return appender.list.stream()
+        .filter(e -> e.getLevel() == Level.WARN)
+        .filter(e -> e.getFormattedMessage()
+            .contains("[node.walletExtensionApi] has been removed and is ignored"))
+        .count();
+  }
+
   // ===========================================================================
   // Boundary tests for node.fetchBlock.timeout clamping.
   //
diff --git a/framework/src/test/java/org/tron/core/services/RpcApiServiceLegacyWalletExtensionTest.java b/framework/src/test/java/org/tron/core/services/RpcApiServiceLegacyWalletExtensionTest.java
new file mode 100644
index 00000000000..0ac933ff3b6
--- /dev/null
+++ b/framework/src/test/java/org/tron/core/services/RpcApiServiceLegacyWalletExtensionTest.java
@@ -0,0 +1,95 @@
+package org.tron.core.services;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+
+import com.google.protobuf.Empty;
+import com.typesafe.config.ConfigFactory;
+import io.grpc.CallOptions;
+import io.grpc.ManagedChannel;
+import io.grpc.ManagedChannelBuilder;
+import io.grpc.MethodDescriptor;
+import io.grpc.Server;
+import io.grpc.Status;
+import io.grpc.StatusRuntimeException;
+import io.grpc.netty.NettyServerBuilder;
+import io.grpc.protobuf.ProtoUtils;
+import io.grpc.stub.ClientCalls;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.tron.api.DatabaseGrpc;
+import org.tron.api.WalletSolidityGrpc;
+import org.tron.core.config.args.Args;
+
+public class RpcApiServiceLegacyWalletExtensionTest {
+
+  private static final String LEGACY_SERVICE = "protocol.WalletExtension";
+  private static final String[] LEGACY_METHODS = {
+      "GetTransactionsFromThis", "GetTransactionsFromThis2",
+      "GetTransactionsToThis", "GetTransactionsToThis2"};
+
+  private Server server;
+  private ManagedChannel channel;
+
+  @Before
+  public void setUp() throws IOException {
+    Args.applyConfigParams(ConfigFactory.parseString("node { walletExtensionApi = true }")
+        .withFallback(ConfigFactory.defaultReference()));
+    Args.getInstance().setSolidityNode(true);
+
+    NettyServerBuilder builder = NettyServerBuilder.forPort(0);
+    new RpcApiService().addService(builder);
+    server = builder.build().start();
+    channel = ManagedChannelBuilder.forAddress("127.0.0.1", server.getPort())
+        .usePlaintext()
+        .build();
+  }
+
+  @After
+  public void tearDown() throws InterruptedException {
+    try {
+      if (channel != null) {
+        channel.shutdownNow().awaitTermination(5, TimeUnit.SECONDS);
+      }
+      if (server != null) {
+        server.shutdownNow().awaitTermination(5, TimeUnit.SECONDS);
+      }
+    } finally {
+      Args.clearParam();
+    }
+  }
+
+  @Test
+  public void testSolidityNodeDoesNotRegisterWalletExtension() {
+    List<String> services = server.getServices().stream()
+        .map(s -> s.getServiceDescriptor().getName())
+        .collect(Collectors.toList());
+    assertTrue(services.contains(WalletSolidityGrpc.SERVICE_NAME));
+    assertTrue(services.contains(DatabaseGrpc.SERVICE_NAME));
+    assertFalse(services.contains(LEGACY_SERVICE));
+  }
+
+  @Test
+  public void testLegacyMethodsReturnUnimplemented() {
+    for (String name : LEGACY_METHODS) {
+      MethodDescriptor<Empty, Empty> method = MethodDescriptor.<Empty, Empty>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName(MethodDescriptor.generateFullMethodName(LEGACY_SERVICE, name))
+          .setRequestMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
+          .build();
+      StatusRuntimeException e = assertThrows(StatusRuntimeException.class,
+          () -> ClientCalls.blockingUnaryCall(channel, method,
+              CallOptions.DEFAULT.withDeadlineAfter(5, TimeUnit.SECONDS),
+              Empty.getDefaultInstance()));
+      assertEquals(name, Status.Code.UNIMPLEMENTED, e.getStatus().getCode());
+    }
+  }
+}
diff --git a/framework/src/test/java/org/tron/core/services/http/UtilMockTest.java b/framework/src/test/java/org/tron/core/services/http/UtilMockTest.java
index d4124c90adf..ed43e960520 100644
--- a/framework/src/test/java/org/tron/core/services/http/UtilMockTest.java
+++ b/framework/src/test/java/org/tron/core/services/http/UtilMockTest.java
@@ -198,16 +198,6 @@ public void testPrintBlockToJSONCoversAllProtoTopLevelFields() {
     }
   }
 
-  @Test
-  public void testPrintTransactionList() {
-    TransactionCapsule transactionCapsule = getTransactionCapsuleExample();
-    GrpcAPI.TransactionList list = GrpcAPI.TransactionList.newBuilder()
-        .addTransaction(transactionCapsule.getInstance())
-        .build();
-    String out = Util.printTransactionList(list, true);
-    Assert.assertNotNull(out);
-  }
-
   private TransactionCapsule getTransactionCapsuleExample() {
     final String OWNER_ADDRESS = "41548794500882809695a8a687866e76d4271a1abc";
     final String RECEIVER_ADDRESS = "41abd4b9367799eaa3197fecb144eb71de1e049150";
diff --git a/framework/src/test/resources/config-shield.conf b/framework/src/test/resources/config-shield.conf
index 1c185f8f82f..33f270bfa03 100644
--- a/framework/src/test/resources/config-shield.conf
+++ b/framework/src/test/resources/config-shield.conf
@@ -41,9 +41,6 @@ node {
   # trustNode = "ip:port"
   trustNode = "127.0.0.1:50051"
 
-  # expose extension api to public or not
-  walletExtensionApi = true
-
   listen.port = 6666
 
   # Number of validate sign thread, default availableProcessors / 2
diff --git a/protocol/src/main/protos/api/api.proto b/protocol/src/main/protos/api/api.proto
index f8d13a6bbd3..515fa4222c2 100644
--- a/protocol/src/main/protos/api/api.proto
+++ b/protocol/src/main/protos/api/api.proto
@@ -613,21 +613,6 @@ service WalletSolidity {
   }
 };
 
-service WalletExtension {
-  //Please use GetTransactionsFromThis2 instead of this function.
-  rpc GetTransactionsFromThis (AccountPaginated) returns (TransactionList) {
-  }
-  //Use this function instead of GetTransactionsFromThis.
-  rpc GetTransactionsFromThis2 (AccountPaginated) returns (TransactionListExtention) {
-  }
-  //Please use GetTransactionsToThis2 instead of this function.
-  rpc GetTransactionsToThis (AccountPaginated) returns (TransactionList) {
-  }
-  //Use this function instead of GetTransactionsToThis.
-  rpc GetTransactionsToThis2 (AccountPaginated) returns (TransactionListExtention) {
-  }
-};
-
 // the api of tron's db
 service Database {
   // for tapos
@@ -699,9 +684,6 @@ message AssetIssueList {
 message BlockList {
   repeated Block block = 1;
 }
-message TransactionList {
-  repeated Transaction transaction = 1;
-}
 message TransactionIdList {
   repeated string txId = 1;
 }
@@ -764,10 +746,6 @@ message NumberMessage {
 message BytesMessage {
   bytes value = 1;
 }
-message TimeMessage {
-  int64 beginInMilliseconds = 1;
-  int64 endInMilliseconds = 2;
-}
 message BlockReq {
   string id_or_num = 1;
   bool   detail = 2;
@@ -780,16 +758,6 @@ message TransactionLimit {
   bytes transactionId = 1;
   int64 limitNum = 2;
 }
-message AccountPaginated {
-  Account account = 1;
-  int64 offset = 2;
-  int64 limit = 3;
-}
-message TimePaginatedMessage {
-  TimeMessage timeMessage = 1;
-  int64 offset = 2;
-  int64 limit = 3;
-}
 //deprecated
 message AccountNetMessage {
   int64 freeNetUsed = 1;
@@ -854,10 +822,6 @@ message BlockListExtention {
   repeated BlockExtention block = 1;
 }
 
-message TransactionListExtention {
-  repeated TransactionExtention transaction = 1;
-}
-
 message BlockIncrementalMerkleTree {
   int64 number = 1;
   IncrementalMerkleTree merkleTree = 2;