diff --git a/ProjectPlugins/CodexPlugin/CodexAccess.cs b/ProjectPlugins/CodexPlugin/CodexAccess.cs
index 8e0ac40..f9d7772 100644
--- a/ProjectPlugins/CodexPlugin/CodexAccess.cs
+++ b/ProjectPlugins/CodexPlugin/CodexAccess.cs
@@ -44,6 +44,11 @@ namespace CodexPlugin
             return result;
         }
 
+        public CodexDebugBlockExchangeResponse GetDebugBlockExchange()
+        {
+            return Http().HttpGetJson<CodexDebugBlockExchangeResponse>("debug/blockexchange");
+        }
+
         public CodexDebugThresholdBreaches GetDebugThresholdBreaches()
         {
             return Http().HttpGetJson<CodexDebugThresholdBreaches>("debug/loop");
diff --git a/ProjectPlugins/CodexPlugin/CodexApiTypes.cs b/ProjectPlugins/CodexPlugin/CodexApiTypes.cs
index 127f437..3fbc1a2 100644
--- a/ProjectPlugins/CodexPlugin/CodexApiTypes.cs
+++ b/ProjectPlugins/CodexPlugin/CodexApiTypes.cs
@@ -122,4 +122,46 @@ namespace CodexPlugin
         public string state { get; set; } = string.Empty;
         public string error { get; set; } = string.Empty;
     }
+
+    public class CodexDebugBlockExchangeResponse
+    {
+        public CodexDebugBlockExchangeResponsePeer[] peers { get; set; } = Array.Empty<CodexDebugBlockExchangeResponsePeer>();
+        public int taskQueue { get; set; }
+        public int pendingBlocks { get; set; }
+
+        public override string ToString()
+        {
+            if (peers.Length == 0 && taskQueue == 0 && pendingBlocks == 0) return "all-empty";
+
+            return $"taskqueue: {taskQueue} pendingblocks: {pendingBlocks} peers: {string.Join(",", peers.Select(p => p.ToString()))}";
+        }
+    }
+
+    public class CodexDebugBlockExchangeResponsePeer
+    {
+        public CodexDebugBlockExchangeResponsePeerHasBlock[] hasBlocks { get; set; } = Array.Empty<CodexDebugBlockExchangeResponsePeerHasBlock>();
+        public CodexDebugBlockExchangeResponsePeerWant[] wants { get; set; } = Array.Empty<CodexDebugBlockExchangeResponsePeerWant>();
+        public int exchanged { get; set; }
+
+        public override string ToString()
+        {
+            return $"(blocks:{hasBlocks.Length} wants:{wants.Length})";
+        }
+    }
+
+    public class CodexDebugBlockExchangeResponsePeerHasBlock
+    {
+        public string cid { get; set; } = string.Empty;
+        public bool have { get; set; }
+        public string price { get; set; } = string.Empty;
+    }
+
+    public class CodexDebugBlockExchangeResponsePeerWant
+    {
+        public string block { get; set; } = string.Empty;
+        public int priority { get; set; }
+        public bool cancel { get; set; }
+        public string wantType { get; set; } = string.Empty;
+        public bool sendDontHave { get; set; }
+    }
 }
diff --git a/ProjectPlugins/CodexPlugin/CodexContainerRecipe.cs b/ProjectPlugins/CodexPlugin/CodexContainerRecipe.cs
index ebef993..cf72fb6 100644
--- a/ProjectPlugins/CodexPlugin/CodexContainerRecipe.cs
+++ b/ProjectPlugins/CodexPlugin/CodexContainerRecipe.cs
@@ -7,7 +7,8 @@ namespace CodexPlugin
     {
         private readonly MarketplaceStarter marketplaceStarter = new MarketplaceStarter();
 
-        private const string DefaultDockerImage = "codexstorage/nim-codex:latest-dist-tests";
+        //private const string DefaultDockerImage = "codexstorage/nim-codex:latest-dist-tests";
+        private const string DefaultDockerImage = "codexstorage/nim-codex:sha-1875e6b-dist-tests";
         public const string MetricsPortTag = "metrics_port";
         public const string DiscoveryPortTag = "discovery-port";
 
diff --git a/ProjectPlugins/CodexPlugin/CodexNode.cs b/ProjectPlugins/CodexPlugin/CodexNode.cs
index f4ff802..4a5940d 100644
--- a/ProjectPlugins/CodexPlugin/CodexNode.cs
+++ b/ProjectPlugins/CodexPlugin/CodexNode.cs
@@ -13,6 +13,7 @@ namespace CodexPlugin
         string GetName();
         CodexDebugResponse GetDebugInfo();
         CodexDebugPeerResponse GetDebugPeer(string peerId);
+        CodexDebugBlockExchangeResponse GetDebugBlockExchange();
         ContentId UploadFile(TrackedFile file);
         TrackedFile? DownloadContent(ContentId contentId, string fileLabel = "");
         void ConnectToPeer(ICodexNode node);
@@ -81,6 +82,11 @@ namespace CodexPlugin
             return CodexAccess.GetDebugPeer(peerId);
         }
 
+        public CodexDebugBlockExchangeResponse GetDebugBlockExchange()
+        {
+            return CodexAccess.GetDebugBlockExchange();
+        }
+
         public ContentId UploadFile(TrackedFile file)
         {
             using var fileStream = File.OpenRead(file.Filename);
diff --git a/ProjectPlugins/CodexPlugin/CodexStartupConfig.cs b/ProjectPlugins/CodexPlugin/CodexStartupConfig.cs
index 4b651df..971dd2c 100644
--- a/ProjectPlugins/CodexPlugin/CodexStartupConfig.cs
+++ b/ProjectPlugins/CodexPlugin/CodexStartupConfig.cs
@@ -46,6 +46,10 @@ namespace CodexPlugin
                     "noise",
                     "bufferstream",
                     "mplexcoder",
+                    "secure",
+                    "chronosstream",
+                    "connection",
+                    "connmanager",
                     "websock",
                     "ws-session"
                 };