diff --git a/src/benchmarks/kms_stress.rs b/src/benchmarks/kms_stress.rs
new file mode 100644
index 0000000..d1e974a
--- /dev/null
+++ b/src/benchmarks/kms_stress.rs
@@ -0,0 +1,89 @@
+// Copyright (c) Mysten Labs, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::tx_signer::{SidecarTxSigner, TxSigner};
+use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
+use std::sync::Arc;
+use std::time::{Duration, Instant};
+use sui_types::base_types::{random_object_ref, SuiAddress};
+use sui_types::transaction::{ProgrammableTransaction, TransactionData, TransactionKind};
+
+pub async fn run_kms_stress_test(kms_url: String) {
+    let signer = SidecarTxSigner::new(kms_url).await;
+    let test_tx_data = TransactionData::new(
+        TransactionKind::ProgrammableTransaction(ProgrammableTransaction {
+            inputs: vec![],
+            commands: vec![],
+        }),
+        SuiAddress::ZERO,
+        random_object_ref(),
+        1000,
+        1000,
+    );
+    // Shared atomic counters for successes and failures
+    let success_counter = Arc::new(AtomicUsize::new(0));
+    let failure_counter = Arc::new(AtomicUsize::new(0));
+
+    // Shared atomic flag to signal workers to stop
+    let stop_flag = Arc::new(AtomicBool::new(false));
+
+    // Vector to hold worker task handles
+    let mut handles = Vec::with_capacity(200);
+
+    for _ in 0..200 {
+        let success_counter = Arc::clone(&success_counter);
+        let failure_counter = Arc::clone(&failure_counter);
+        let stop_flag = Arc::clone(&stop_flag);
+        let signer = signer.clone(); // Ensure Signer is Clone
+        let test_tx_data = test_tx_data.clone(); // Clone the test data
+
+        // Spawn a worker task
+        let handle = tokio::spawn(async move {
+            while !stop_flag.load(Ordering::Relaxed) {
+                match signer.sign_transaction(&test_tx_data).await {
+                    Ok(_) => {
+                        // Increment the success counter on successful call
+                        success_counter.fetch_add(1, Ordering::Relaxed);
+                    }
+                    Err(_) => {
+                        // Increment the failure counter on failed call
+                        failure_counter.fetch_add(1, Ordering::Relaxed);
+                    }
+                }
+            }
+        });
+
+        handles.push(handle);
+    }
+
+    // Start the timer
+    let start = Instant::now();
+
+    // Let the test run for the specified duration
+    tokio::time::sleep(Duration::from_secs(30)).await;
+
+    // Signal all workers to stop
+    stop_flag.store(true, Ordering::Relaxed);
+
+    // Wait for all workers to finish
+    for handle in handles {
+        let _ = handle.await;
+    }
+
+    // Calculate elapsed time
+    let elapsed = start.elapsed().as_secs_f64();
+
+    // Get the total number of successful and failed calls
+    let total_success = success_counter.load(Ordering::Relaxed);
+    let total_failures = failure_counter.load(Ordering::Relaxed);
+    let total_calls = total_success + total_failures;
+
+    // Calculate throughput
+    let throughput = total_success as f64 / elapsed;
+
+    println!("Total calls completed: {}", total_calls);
+    println!(" - Successful: {}", total_success);
+    println!(" - Failed: {}", total_failures);
+    println!("Elapsed time: {:.2} seconds", elapsed);
+    println!("Throughput: {:.2} successful calls/second", throughput);
+}
diff --git a/src/benchmarks/mod.rs b/src/benchmarks/mod.rs
index 16fa8f9..fa7d15b 100644
--- a/src/benchmarks/mod.rs
+++ b/src/benchmarks/mod.rs
@@ -1,6 +1,8 @@
 // Copyright (c) Mysten Labs, Inc.
 // SPDX-License-Identifier: Apache-2.0
 
+pub mod kms_stress;
+
 use crate::rpc::client::GasPoolRpcClient;
 use clap::ValueEnum;
 use parking_lot::RwLock;
diff --git a/src/bin/tool.rs b/src/bin/tool.rs
index 720e0e5..dee73d3 100644
--- a/src/bin/tool.rs
+++ b/src/bin/tool.rs
@@ -4,6 +4,7 @@
 use clap::*;
 use std::path::PathBuf;
 use sui_config::Config;
+use sui_gas_station::benchmarks::kms_stress::run_kms_stress_test;
 use sui_gas_station::benchmarks::BenchmarkMode;
 use sui_gas_station::config::{GasPoolStorageConfig, GasStationConfig, TxSignerConfig};
 use sui_gas_station::rpc::client::GasPoolRpcClient;
@@ -37,6 +38,11 @@ pub enum ToolCommand {
         #[arg(long, help = "Benchmark mode.", default_value = "reserve-only")]
         benchmark_mode: BenchmarkMode,
     },
+    #[clap(name = "stress-kms")]
+    StressKMS {
+        #[arg(long, help = "Full URL to the KMS signer")]
+        kms_url: String,
+    },
     /// Generate a sample config file and put it in the specified path.
     #[clap(name = "generate-sample-config")]
     GenerateSampleConfig {
@@ -88,6 +94,9 @@ impl ToolCommand {
                     .run_benchmark(gas_station_url, reserve_duration_sec, num_clients)
                     .await
             }
+            ToolCommand::StressKMS { kms_url } => {
+                run_kms_stress_test(kms_url).await;
+            }
             ToolCommand::GenerateSampleConfig {
                 config_path,
                 with_sidecar_signer,
diff --git a/src/sui_client.rs b/src/sui_client.rs
index 994acef..1aab955 100644
--- a/src/sui_client.rs
+++ b/src/sui_client.rs
@@ -233,15 +233,13 @@ impl SuiClient {
                 .read_api()
                 .get_object_with_options(obj_ref.0, SuiObjectDataOptions::default())
                 .await;
-            match response {
-                Ok(SuiObjectResponse {
-                    data: Some(data), ..
-                }) => {
-                    if data.version == obj_ref.1 {
-                        break;
-                    }
+            if let Ok(SuiObjectResponse {
+                data: Some(data), ..
+            }) = response
+            {
+                if data.version == obj_ref.1 {
+                    break;
                 }
-                _ => (),
             }
             tokio::time::sleep(Duration::from_millis(200)).await;
         }