diff --git a/CHANGES.md b/CHANGES.md
index 75a80a863e4..fafbf38dd44 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -6,6 +6,15 @@ Version 5.5.1
 
 To be released.
 
+### Added APIs
+
+ -  (Libplanet.Extensions.Cocona) Added new commands to store command:
+    [[#4032]]
+     -  `GetTxNonce`
+     -  `SetTxNonce`
+
+[#4032]: https://github.com/planetarium/libplanet/pull/4032
+
 
 Version 5.5.0
 -------------
diff --git a/test/Libplanet.Extensions.Cocona.Tests/Commands/StoreCommandTest.cs b/test/Libplanet.Extensions.Cocona.Tests/Commands/StoreCommandTest.cs
index ef04d4b3c8d..64676c83217 100644
--- a/test/Libplanet.Extensions.Cocona.Tests/Commands/StoreCommandTest.cs
+++ b/test/Libplanet.Extensions.Cocona.Tests/Commands/StoreCommandTest.cs
@@ -347,6 +347,38 @@ public void TestTxById()
         }
     }
 
+    [SkippableFact]
+    public void TestGetTxNonce()
+    {
+        foreach (var fx in _storeFixtures)
+        {
+            using var sw = new StringWriter();
+            Console.SetOut(sw);
+            new StoreCommand().GetTxNonce(
+                fx.Scheme + fx.Path,
+                new PrivateKey().Address.ToString());
+            var actual = sw.ToString();
+            Assert.Equal("0", actual.TrimEnd());
+        }
+    }
+
+    [SkippableFact]
+    public void TestSetTxNonce()
+    {
+        foreach (var fx in _storeFixtures)
+        {
+            using var sw = new StringWriter();
+            Console.SetOut(sw);
+            const int target = 5;
+            new StoreCommand().SetTxNonce(
+                fx.Scheme + fx.Path,
+                new PrivateKey().Address.ToString(),
+                target);
+            var actual = sw.ToString();
+            Assert.Equal($"{target}", actual.TrimEnd());
+        }
+    }
+
     public void Dispose()
     {
         foreach (var storeFixture in _storeFixtures)
diff --git a/tools/Libplanet.Extensions.Cocona/Commands/StoreCommand.cs b/tools/Libplanet.Extensions.Cocona/Commands/StoreCommand.cs
index 29a88587583..12694b1627b 100644
--- a/tools/Libplanet.Extensions.Cocona/Commands/StoreCommand.cs
+++ b/tools/Libplanet.Extensions.Cocona/Commands/StoreCommand.cs
@@ -5,6 +5,7 @@
 using System.Linq;
 using global::Cocona;
 using Libplanet.Common;
+using Libplanet.Crypto;
 using Libplanet.Store;
 using Libplanet.Types.Blocks;
 using Libplanet.Types.Tx;
@@ -160,6 +161,49 @@ public void MigrateIndex(string storePath)
         }
     }
 
+    [Command(Description = "Query a tx nonce for the address for the canonical chain.")]
+    public void GetTxNonce(
+        [Argument("STORE", Description = StoreArgumentDescription)]
+        string home,
+        [Argument("ADDRESS", Description = "signer address")]
+        string address)
+    {
+        IStore store = Utils.LoadStoreFromUri(home);
+        var canon = store.GetCanonicalChainId();
+        if (canon is not { } cid)
+        {
+            Console.WriteLine("No canonical chain.");
+            return;
+        }
+
+        Console.WriteLine(store.GetTxNonce(cid, new Address(address)));
+        store?.Dispose();
+    }
+
+    [Command(Description = "Mutate a tx nonce for the address for the canonical chain.")]
+    public void SetTxNonce(
+        [Argument("STORE", Description = StoreArgumentDescription)]
+        string home,
+        [Argument("ADDRESS", Description = "signer address")]
+        string address,
+        [Argument("NONCE", Description = "nonce")]
+        long nonce)
+    {
+        IStore store = Utils.LoadStoreFromUri(home);
+        var canon = store.GetCanonicalChainId();
+        if (canon is not { } cid)
+        {
+            Console.WriteLine("No canonical chain.");
+            return;
+        }
+
+        var signer = new Address(address);
+        var currentNonce = store.GetTxNonce(cid, signer);
+        store.IncreaseTxNonce(cid, signer, nonce - currentNonce);
+        Console.WriteLine(store.GetTxNonce(cid, signer));
+        store?.Dispose();
+    }
+
     private static Block GetBlock(IStore store, BlockHash blockHash)
     {
         if (!(store.GetBlock(blockHash) is { } block))