diff --git a/cmd/mcptools/commands/call.go b/cmd/mcptools/commands/call.go
index 4039400..990e1ac 100644
--- a/cmd/mcptools/commands/call.go
+++ b/cmd/mcptools/commands/call.go
@@ -33,33 +33,7 @@ func CallCmd() *cobra.Command {
 				os.Exit(1)
 			}
 
-			cmdArgs := args
-			parsedArgs := []string{}
-			entityName := ""
-
-			i := 0
-			entityExtracted := false
-
-			for i < len(cmdArgs) {
-				switch {
-				case (cmdArgs[i] == FlagFormat || cmdArgs[i] == FlagFormatShort) && i+1 < len(cmdArgs):
-					FormatOption = cmdArgs[i+1]
-					i += 2
-				case (cmdArgs[i] == FlagParams || cmdArgs[i] == FlagParamsShort) && i+1 < len(cmdArgs):
-					ParamsString = cmdArgs[i+1]
-					i += 2
-				case !entityExtracted:
-					entityName = cmdArgs[i]
-					entityExtracted = true
-					i++
-				case cmdArgs[i] == FlagServerLogs:
-					ShowServerLogs = true
-					i++
-				default:
-					parsedArgs = append(parsedArgs, cmdArgs[i])
-					i++
-				}
-			}
+			parsedArgs, entityName := parseCallArguments(args)
 
 			if entityName == "" {
 				fmt.Fprintln(os.Stderr, "Error: entity name is required")
@@ -148,3 +122,38 @@ func CallCmd() *cobra.Command {
 		},
 	}
 }
+
+// fix cyclomatic complexity.
+func parseCallArguments(args []string) ([]string, string) {
+	cmdArgs := args
+	parsedArgs := []string{}
+	entityName := ""
+
+	i := 0
+	entityExtracted := false
+
+	for i < len(cmdArgs) {
+		switch {
+		case (cmdArgs[i] == FlagFormat || cmdArgs[i] == FlagFormatShort) && i+1 < len(cmdArgs):
+			FormatOption = cmdArgs[i+1]
+			i += 2
+		case (cmdArgs[i] == FlagParams || cmdArgs[i] == FlagParamsShort) && i+1 < len(cmdArgs):
+			ParamsString = cmdArgs[i+1]
+			i += 2
+		case !entityExtracted:
+			entityName = cmdArgs[i]
+			entityExtracted = true
+			i++
+		case cmdArgs[i] == FlagServerLogs:
+			ShowServerLogs = true
+			i++
+		case cmdArgs[i] == FlagVerbose || cmdArgs[i] == FlagVerboseShort:
+			Verbose = true
+			i++
+		default:
+			parsedArgs = append(parsedArgs, cmdArgs[i])
+			i++
+		}
+	}
+	return parsedArgs, entityName
+}
diff --git a/cmd/mcptools/commands/get_prompt.go b/cmd/mcptools/commands/get_prompt.go
index 30ff06a..c2c6569 100644
--- a/cmd/mcptools/commands/get_prompt.go
+++ b/cmd/mcptools/commands/get_prompt.go
@@ -50,6 +50,9 @@ func GetPromptCmd() *cobra.Command {
 				case cmdArgs[i] == FlagServerLogs:
 					ShowServerLogs = true
 					i++
+				case args[i] == FlagVerbose || args[i] == FlagVerboseShort:
+					Verbose = true
+					i++
 				case !promptExtracted:
 					promptName = cmdArgs[i]
 					promptExtracted = true
diff --git a/cmd/mcptools/commands/http.go b/cmd/mcptools/commands/http.go
new file mode 100644
index 0000000..b5d5a6e
--- /dev/null
+++ b/cmd/mcptools/commands/http.go
@@ -0,0 +1,35 @@
+package commands
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+)
+
+var verbose = &http.Client{
+	Transport: verbosed{http.DefaultTransport},
+}
+
+type verbosed struct {
+	impl http.RoundTripper
+}
+
+func verboseHeader(dir byte, header map[string][]string) {
+	for k, a := range header {
+		for _, v := range a {
+			fmt.Fprintf(os.Stderr, "%c %s: %s\n", dir, k, v)
+		}
+	}
+}
+
+func (v verbosed) RoundTrip(req *http.Request) (*http.Response, error) {
+	verboseHeader('>', req.Header)
+	fmt.Fprintf(os.Stderr, "> \n")
+	resp, err := v.impl.RoundTrip(req)
+	if resp != nil {
+		verboseHeader('<', resp.Header)
+		fmt.Fprintf(os.Stderr, "< \n")
+	}
+	fmt.Fprintf(os.Stderr, "\n")
+	return resp, err
+}
diff --git a/cmd/mcptools/commands/root.go b/cmd/mcptools/commands/root.go
index 2bae0e2..125b5c3 100644
--- a/cmd/mcptools/commands/root.go
+++ b/cmd/mcptools/commands/root.go
@@ -17,6 +17,8 @@ const (
 	FlagHelpShort   = "-h"
 	FlagServerLogs  = "--server-logs"
 	FlagTransport   = "--transport"
+	FlagVerbose      = "--verbose"
+	FlagVerboseShort = "-v"
 )
 
 // entity types.
@@ -35,6 +37,8 @@ var (
 	ParamsString string
 	// ShowServerLogs is a flag to show server logs.
 	ShowServerLogs bool
+	// Verbose show http verbose info.
+	Verbose bool
 	// TransportOption is the transport option for HTTP connections, valid values are "sse" and "http".
 	// Default is "http" (streamable HTTP).
 	TransportOption = "http"
@@ -52,6 +56,7 @@ It allows you to discover and call tools, list resources, and interact with MCP-
 	cmd.PersistentFlags().StringVarP(&FormatOption, "format", "f", "table", "Output format (table, json, pretty)")
 	cmd.PersistentFlags().
 		StringVarP(&ParamsString, "params", "p", "{}", "JSON string of parameters to pass to the tool (for call command)")
+	cmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "Show http verbose info")
 	cmd.PersistentFlags().StringVar(&TransportOption, "transport", "http", "HTTP transport type (http, sse)")
 
 	return cmd
diff --git a/cmd/mcptools/commands/shell.go b/cmd/mcptools/commands/shell.go
index 280e87a..69df784 100644
--- a/cmd/mcptools/commands/shell.go
+++ b/cmd/mcptools/commands/shell.go
@@ -231,7 +231,9 @@ func callCommand(thisCmd *cobra.Command, mcpClient *client.Client, commandArgs [
 		var toolResponse *mcp.CallToolResult
 		request := mcp.CallToolRequest{}
 		request.Params.Name = entityName
-		request.Params.Arguments = params
+		if len(params) > 0 {
+			request.Params.Arguments = params // fix unittest "tool_name without params"
+		}
 		toolResponse, execErr = mcpClient.CallTool(context.Background(), request)
 		if execErr == nil && toolResponse != nil {
 			resp = ConvertJSONToMap(toolResponse)
diff --git a/cmd/mcptools/commands/trace.go b/cmd/mcptools/commands/trace.go
new file mode 100644
index 0000000..37abb4c
--- /dev/null
+++ b/cmd/mcptools/commands/trace.go
@@ -0,0 +1,28 @@
+package commands
+
+import (
+	"context"
+	"crypto/rand"
+
+	"github.com/mark3labs/mcp-go/client"
+	"github.com/mark3labs/mcp-go/client/transport"
+	"go.opentelemetry.io/otel/propagation"
+	"go.opentelemetry.io/otel/trace"
+)
+
+func generateTraceID() [16]byte {
+	var traceID [16]byte
+	_, _ = rand.Read(traceID[:])
+	return traceID
+}
+
+func injectTrace(ctx context.Context) transport.ClientOption {
+	sc := trace.NewSpanContext(trace.SpanContextConfig{
+		TraceID: generateTraceID(),
+		SpanID:  trace.SpanID([8]byte{255}),
+	})
+	ctx = trace.ContextWithRemoteSpanContext(ctx, sc)
+	carrier := propagation.MapCarrier{}
+	propagation.TraceContext{}.Inject(ctx, carrier)
+	return client.WithHeaders(carrier)
+}
diff --git a/cmd/mcptools/commands/utils.go b/cmd/mcptools/commands/utils.go
index 63031ea..2ced70a 100644
--- a/cmd/mcptools/commands/utils.go
+++ b/cmd/mcptools/commands/utils.go
@@ -11,8 +11,8 @@ import (
 	"github.com/f/mcptools/pkg/alias"
 	"github.com/f/mcptools/pkg/jsonutils"
 	"github.com/mark3labs/mcp-go/client"
+	"github.com/mark3labs/mcp-go/client/transport"
 	"github.com/mark3labs/mcp-go/mcp"
-
 	"github.com/spf13/cobra"
 )
 
@@ -47,13 +47,17 @@ var CreateClientFunc = func(args []string, _ ...client.ClientOption) (*client.Cl
 	var err error
 
 	if len(args) == 1 && IsHTTP(args[0]) {
+		opts := []transport.ClientOption{injectTrace(context.Background())}
+		if Verbose {
+			opts = append(opts, transport.WithHTTPClient(verbose))
+		}
 		// Validate transport option for HTTP URLs
 		if TransportOption != "http" && TransportOption != "sse" {
 			return nil, fmt.Errorf("invalid transport option: %s (supported: http, sse)", TransportOption)
 		}
 		
 		if TransportOption == "sse" {
-			c, err = client.NewSSEMCPClient(args[0])
+			c, err = client.NewSSEMCPClient(args[0], opts...)
 		} else {
 			// Default to streamable HTTP
 			c, err = client.NewStreamableHttpClient(args[0])
@@ -121,6 +125,9 @@ func ProcessFlags(args []string) []string {
 		case args[i] == FlagServerLogs:
 			ShowServerLogs = true
 			i++
+		case args[i] == FlagVerbose || args[i] == FlagVerboseShort:
+			Verbose = true
+			i++
 		default:
 			parsedArgs = append(parsedArgs, args[i])
 			i++
diff --git a/cmd/mcptools/commands/version.go b/cmd/mcptools/commands/version.go
index 7633d5c..852b92d 100644
--- a/cmd/mcptools/commands/version.go
+++ b/cmd/mcptools/commands/version.go
@@ -10,7 +10,7 @@ import (
 // Version information placeholder.
 var Version = "dev"
 
-// getHomeDirectory returns the user's home directory
+// getHomeDirectory returns the user's home directory.
 // Tries HOME first, then falls back to USERPROFILE for Windows.
 func getHomeDirectory() string {
 	homeDir := os.Getenv("HOME")
diff --git a/cmd/mcptools/commands/web.go b/cmd/mcptools/commands/web.go
index 8e61e77..1c10f2d 100644
--- a/cmd/mcptools/commands/web.go
+++ b/cmd/mcptools/commands/web.go
@@ -1269,20 +1269,20 @@ func handleCall(cache *MCPClientCache) http.HandlerFunc {
 		defer cache.mutex.Unlock()
 
 		switch requestData.Type {
-		case "tool":
+		case EntityTypeTool:
 			var toolResponse *mcp.CallToolResult
 			request := mcp.CallToolRequest{}
 			request.Params.Name = requestData.Name
 			request.Params.Arguments = requestData.Params
 			toolResponse, callErr = cache.client.CallTool(context.Background(), request)
 			resp = ConvertJSONToMap(toolResponse)
-		case "resource":
+		case EntityTypeRes:
 			var resourceResponse *mcp.ReadResourceResult
 			request := mcp.ReadResourceRequest{}
 			request.Params.URI = requestData.Name
 			resourceResponse, callErr = cache.client.ReadResource(context.Background(), request)
 			resp = ConvertJSONToMap(resourceResponse)
-		case "prompt":
+		case EntityTypePrompt:
 			var promptResponse *mcp.GetPromptResult
 			request := mcp.GetPromptRequest{}
 			request.Params.Name = requestData.Name
diff --git a/go.mod b/go.mod
index 96905dc..5b522cf 100644
--- a/go.mod
+++ b/go.mod
@@ -3,11 +3,13 @@ module github.com/f/mcptools
 go 1.24.1
 
 require (
-	github.com/mark3labs/mcp-go v0.24.1
+	github.com/mark3labs/mcp-go v0.32.0
 	github.com/peterh/liner v1.2.2
 	github.com/spf13/cobra v1.9.1
 	github.com/spf13/viper v1.20.1
 	github.com/stretchr/testify v1.10.0
+	go.opentelemetry.io/otel v1.29.0
+	go.opentelemetry.io/otel/trace v1.29.0
 	golang.org/x/term v0.30.0
 	golang.org/x/text v0.23.0
 )
@@ -15,6 +17,8 @@ require (
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/fsnotify/fsnotify v1.8.0 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
@@ -30,6 +34,7 @@ require (
 	github.com/spf13/pflag v1.0.6 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/yosida95/uritemplate/v3 v3.0.2 // indirect
+	go.opentelemetry.io/otel/metric v1.29.0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
 	golang.org/x/sys v0.31.0 // indirect
diff --git a/go.sum b/go.sum
index 0426ba3..b2788b4 100644
--- a/go.sum
+++ b/go.sum
@@ -6,6 +6,11 @@ github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHk
 github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/fsnotify/fsnotify v1.8.0 h1:dAwr6QBTBZIkG8roQaJjGof0pp0EeF+tNV7YBP3F/8M=
 github.com/fsnotify/fsnotify v1.8.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
+github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-viper/mapstructure/v2 v2.2.1 h1:ZAaOCxANMuZx5RCeg0mBdEZk7DZasvvZIxtHqx8aGss=
 github.com/go-viper/mapstructure/v2 v2.2.1/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
@@ -18,10 +23,10 @@ github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/mark3labs/mcp-go v0.23.1 h1:RzTzZ5kJ+HxwnutKA4rll8N/pKV6Wh5dhCmiJUu5S9I=
-github.com/mark3labs/mcp-go v0.23.1/go.mod h1:rXqOudj/djTORU/ThxYx8fqEVj/5pvTuuebQ2RC7uk4=
 github.com/mark3labs/mcp-go v0.24.1 h1:YV+5X/+W4oBdERLWgiA1uR7AIvenlKJaa5V4hqufI7E=
 github.com/mark3labs/mcp-go v0.24.1/go.mod h1:rXqOudj/djTORU/ThxYx8fqEVj/5pvTuuebQ2RC7uk4=
+github.com/mark3labs/mcp-go v0.32.0 h1:fgwmbfL2gbd67obg57OfV2Dnrhs1HtSdlY/i5fn7MU8=
+github.com/mark3labs/mcp-go v0.32.0/go.mod h1:rXqOudj/djTORU/ThxYx8fqEVj/5pvTuuebQ2RC7uk4=
 github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
 github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
@@ -59,6 +64,12 @@ github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8
 github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=
 github.com/yosida95/uritemplate/v3 v3.0.2 h1:Ed3Oyj9yrmi9087+NczuL5BwkIc4wvTb5zIM+UJPGz4=
 github.com/yosida95/uritemplate/v3 v3.0.2/go.mod h1:ILOh0sOhIJR3+L/8afwt/kE++YT040gmv5BQTMR2HP4=
+go.opentelemetry.io/otel v1.29.0 h1:PdomN/Al4q/lN6iBJEN3AwPvUiHPMlt93c8bqTG5Llw=
+go.opentelemetry.io/otel v1.29.0/go.mod h1:N/WtXPs1CNCUEx+Agz5uouwCba+i+bJGFicT8SR4NP8=
+go.opentelemetry.io/otel/metric v1.29.0 h1:vPf/HFWTNkPu1aYeIsc98l4ktOQaL6LeSoeV2g+8YLc=
+go.opentelemetry.io/otel/metric v1.29.0/go.mod h1:auu/QWieFVWx+DmQOUMgj0F8LHWdgalxXqvp7BII/W8=
+go.opentelemetry.io/otel/trace v1.29.0 h1:J/8ZNK4XgR7a21DZUAsbF8pZ5Jcw1VhACmnYt39JTi4=
+go.opentelemetry.io/otel/trace v1.29.0/go.mod h1:eHl3w0sp3paPkYstJOmAimxhiFXPg+MMTlEh3nsQgWQ=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI=