diff --git a/sdk/node/Libplanet.Node.Executable/appsettings-schema.json b/sdk/node/Libplanet.Node.Executable/appsettings-schema.json
index e62fc67e480..76d3ba96b68 100644
--- a/sdk/node/Libplanet.Node.Executable/appsettings-schema.json
+++ b/sdk/node/Libplanet.Node.Executable/appsettings-schema.json
@@ -1189,7 +1189,7 @@
         "BlocksyncSeedPeer": {
           "type": "string",
           "description": "The endpoint of the node to block sync.",
-          "pattern": "^$|^[0-9a-fA-F]{130}|[0-9a-fA-F]{66},\\s*(?:(?:[a-zA-Z0-9\\-\\.]+)|(?:\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})):\\d{1,5}$"
+          "pattern": "^$|^(?:[0-9a-fA-F]{130}|[0-9a-fA-F]{66}),(?:(?:[a-zA-Z0-9\\-\\.]+)|(?:\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})),\\d{1,5}$"
         }
       }
     },
@@ -1209,7 +1209,7 @@
         "ConsensusSeedPeer": {
           "type": "string",
           "description": "The endpoint of the node to consensus.",
-          "pattern": "^$|^[0-9a-fA-F]{130}|[0-9a-fA-F]{66},\\s*(?:(?:[a-zA-Z0-9\\-\\.]+)|(?:\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})):\\d{1,5}$"
+          "pattern": "^$|^(?:[0-9a-fA-F]{130}|[0-9a-fA-F]{66}),(?:(?:[a-zA-Z0-9\\-\\.]+)|(?:\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})),\\d{1,5}$"
         }
       }
     }
diff --git a/sdk/node/Libplanet.Node/BoundPeerUtility.cs b/sdk/node/Libplanet.Node/BoundPeerUtility.cs
deleted file mode 100644
index f3f21b39764..00000000000
--- a/sdk/node/Libplanet.Node/BoundPeerUtility.cs
+++ /dev/null
@@ -1,33 +0,0 @@
-using System.Net;
-using Libplanet.Crypto;
-using Libplanet.Net;
-
-namespace Libplanet.Node;
-
-public static class BoundPeerUtility
-{
-    public static BoundPeer Parse(string text)
-    {
-        var items = text.Split(',', StringSplitOptions.RemoveEmptyEntries);
-        if (items.Length == 2)
-        {
-            var publicKey = PublicKey.FromHex(items[0]);
-            var endPoint = (DnsEndPoint)EndPointUtility.Parse(items[1].Trim());
-            return new BoundPeer(publicKey, endPoint);
-        }
-
-        throw new FormatException($"'{text}' is not supported.");
-    }
-
-    public static string ToString(BoundPeer boundPeer)
-    {
-        var publicKey = boundPeer.PublicKey.ToHex(compress: false);
-        var endPoint = EndPointUtility.ToString(boundPeer.EndPoint);
-        return $"{publicKey}, {endPoint}";
-    }
-
-    public static BoundPeer ParseOrFallback(string text, Func<BoundPeer> fallback)
-    {
-        return text == string.Empty ? fallback() : Parse(text);
-    }
-}
diff --git a/sdk/node/Libplanet.Node/DataAnnotations/BoundPeerAttribute.cs b/sdk/node/Libplanet.Node/DataAnnotations/BoundPeerAttribute.cs
index 26d99bf2d26..fc1ae1f1f77 100644
--- a/sdk/node/Libplanet.Node/DataAnnotations/BoundPeerAttribute.cs
+++ b/sdk/node/Libplanet.Node/DataAnnotations/BoundPeerAttribute.cs
@@ -7,10 +7,21 @@ namespace Libplanet.Node.DataAnnotations;
 public sealed class BoundPeerAttribute : RegularExpressionAttribute
 {
     public BoundPeerAttribute()
-        : base(
-            @$"^$|^{PublicKeyAttribute.OriginPattern},\s*{DnsEndPointAttribute.OriginPattern}$")
+        : base(GetPattern())
     {
     }
+
+    private static string GetPattern()
+    {
+        var items = new string[]
+        {
+            PublicKeyAttribute.OriginPattern,
+            DnsEndPointAttribute.HostPattern,
+            DnsEndPointAttribute.PortPattern,
+        };
+        var pattern = string.Join(",", items);
+        return @$"^$|^{pattern}$";
+    }
 }
 
 [AttributeUsage(AttributeTargets.Property)]
diff --git a/sdk/node/Libplanet.Node/DataAnnotations/DnsEndPointAttribute.cs b/sdk/node/Libplanet.Node/DataAnnotations/DnsEndPointAttribute.cs
index d43fa7899e4..f36f29dfd04 100644
--- a/sdk/node/Libplanet.Node/DataAnnotations/DnsEndPointAttribute.cs
+++ b/sdk/node/Libplanet.Node/DataAnnotations/DnsEndPointAttribute.cs
@@ -6,8 +6,12 @@ namespace Libplanet.Node.DataAnnotations;
 [AttributeUsage(AttributeTargets.Property)]
 public sealed class DnsEndPointAttribute : RegularExpressionAttribute
 {
-    public const string OriginPattern
-        = @"(?:(?:[a-zA-Z0-9\-\.]+)|(?:\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})):\d{1,5}";
+    public const string HostPattern
+        = @"(?:(?:[a-zA-Z0-9\-\.]+)|(?:\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}))";
+
+    public const string PortPattern = @"\d{1,5}";
+    public static readonly string OriginPattern
+        = $"{HostPattern}:{PortPattern}";
 
     public DnsEndPointAttribute()
         : base($"^{OriginPattern}$")
diff --git a/sdk/node/Libplanet.Node/DataAnnotations/PublicKeyAttribute.cs b/sdk/node/Libplanet.Node/DataAnnotations/PublicKeyAttribute.cs
index a7b9f93a9df..86db84a8550 100644
--- a/sdk/node/Libplanet.Node/DataAnnotations/PublicKeyAttribute.cs
+++ b/sdk/node/Libplanet.Node/DataAnnotations/PublicKeyAttribute.cs
@@ -6,7 +6,7 @@ namespace Libplanet.Node.DataAnnotations;
 [AttributeUsage(AttributeTargets.Property)]
 public sealed class PublicKeyAttribute : RegularExpressionAttribute
 {
-    public const string OriginPattern = "[0-9a-fA-F]{130}|[0-9a-fA-F]{66}";
+    public const string OriginPattern = "(?:[0-9a-fA-F]{130}|[0-9a-fA-F]{66})";
 
     public PublicKeyAttribute()
         : base($"^{OriginPattern}$")
diff --git a/sdk/node/Libplanet.Node/Services/SwarmService.cs b/sdk/node/Libplanet.Node/Services/SwarmService.cs
index 7b44889b641..63980869acd 100644
--- a/sdk/node/Libplanet.Node/Services/SwarmService.cs
+++ b/sdk/node/Libplanet.Node/Services/SwarmService.cs
@@ -52,7 +52,7 @@ public async Task StartAsync(CancellationToken cancellationToken)
                 PrivateKey = ByteUtil.Hex(seedPrivateKey.ByteArray),
                 EndPoint = EndPointUtility.ToString(EndPointUtility.Next()),
             });
-            _options.BlocksyncSeedPeer = BoundPeerUtility.ToString(_blocksyncSeed.BoundPeer);
+            _options.BlocksyncSeedPeer = _blocksyncSeed.BoundPeer.PeerString;
             await _blocksyncSeed.StartAsync(cancellationToken);
         }
 
@@ -63,8 +63,7 @@ public async Task StartAsync(CancellationToken cancellationToken)
                 PrivateKey = ByteUtil.Hex(seedPrivateKey.ByteArray),
                 EndPoint = EndPointUtility.ToString(EndPointUtility.Next()),
             });
-            validatorOptions.ConsensusSeedPeer
-                = BoundPeerUtility.ToString(_consensusSeed.BoundPeer);
+            validatorOptions.ConsensusSeedPeer = _consensusSeed.BoundPeer.PeerString;
             await _consensusSeed.StartAsync(cancellationToken);
         }
 
@@ -74,7 +73,7 @@ public async Task StartAsync(CancellationToken cancellationToken)
         var swarmTransport = await CreateTransport(
             privateKey: privateKey,
             endPoint: swarmEndPoint);
-        var blocksyncSeedPeer = BoundPeerUtility.Parse(nodeOptions.BlocksyncSeedPeer);
+        var blocksyncSeedPeer = BoundPeer.ParsePeer(nodeOptions.BlocksyncSeedPeer);
         var swarmOptions = new Net.Options.SwarmOptions
         {
             StaticPeers = [blocksyncSeedPeer],
@@ -185,7 +184,7 @@ private static async Task<NetMQTransport> CreateTransport(
     private static ConsensusReactorOption CreateConsensusReactorOption(
         PrivateKey privateKey, ValidatorOptions options)
     {
-        var consensusSeedPeer = BoundPeerUtility.Parse(options.ConsensusSeedPeer);
+        var consensusSeedPeer = BoundPeer.ParsePeer(options.ConsensusSeedPeer);
         var consensusEndPoint = (DnsEndPoint)EndPointUtility.Parse(options.EndPoint);
         return new ConsensusReactorOption
         {