diff --git a/crates/mempool_test_utils/src/starknet_api_test_utils.rs b/crates/mempool_test_utils/src/starknet_api_test_utils.rs
index ba46f766ccc..716a208b732 100644
--- a/crates/mempool_test_utils/src/starknet_api_test_utils.rs
+++ b/crates/mempool_test_utils/src/starknet_api_test_utils.rs
@@ -119,7 +119,7 @@ pub fn executable_invoke_tx(cairo_version: CairoVersion) -> AccountTransaction {
 
     let mut tx_generator = MultiAccountTransactionGenerator::new();
     tx_generator.register_account(default_account);
-    tx_generator.account_with_id(0).generate_executable_invoke()
+    tx_generator.account_with_id_mut(0).generate_executable_invoke()
 }
 
 pub fn generate_deploy_account_with_salt(
@@ -162,9 +162,9 @@ type SharedNonceManager = Rc<RefCell<NonceManager>>;
 /// tx_generator.register_account_for_flow_test(some_account_type.clone());
 /// tx_generator.register_account_for_flow_test(some_account_type);
 ///
-/// let account_0_tx_with_nonce_0 = tx_generator.account_with_id(0).generate_invoke_with_tip(1);
-/// let account_1_tx_with_nonce_0 = tx_generator.account_with_id(1).generate_invoke_with_tip(3);
-/// let account_0_tx_with_nonce_1 = tx_generator.account_with_id(0).generate_invoke_with_tip(1);
+/// let account_0_tx_with_nonce_0 = tx_generator.account_with_id_mut(0).generate_invoke_with_tip(1);
+/// let account_1_tx_with_nonce_0 = tx_generator.account_with_id_mut(1).generate_invoke_with_tip(3);
+/// let account_0_tx_with_nonce_1 = tx_generator.account_with_id_mut(0).generate_invoke_with_tip(1);
 /// ```
 // Note: when moving this to starknet api crate, see if blockifier's
 // [blockifier::transaction::test_utils::FaultyAccountTxCreatorArgs] can be made to use this.
@@ -194,7 +194,10 @@ impl MultiAccountTransactionGenerator {
         default_deploy_account_tx
     }
 
-    pub fn account_with_id(&mut self, account_id: AccountId) -> &mut AccountTransactionGenerator {
+    pub fn account_with_id_mut(
+        &mut self,
+        account_id: AccountId,
+    ) -> &mut AccountTransactionGenerator {
         self.account_tx_generators.get_mut(account_id).unwrap_or_else(|| {
             panic!(
                 "{account_id:?} not found! This number should be an index of an account in the \
@@ -203,6 +206,15 @@ impl MultiAccountTransactionGenerator {
         })
     }
 
+    pub fn account_with_id(&self, account_id: AccountId) -> &AccountTransactionGenerator {
+        self.account_tx_generators.get(account_id).unwrap_or_else(|| {
+            panic!(
+                "{account_id:?} not found! This number should be an index of an account in the \
+                 initialization array. "
+            )
+        })
+    }
+
     // TODO(deploy_account_support): once we support deploy account in tests, remove this method and
     // only use new_account_default in tests. In particular, deploy account txs must be then sent to
     // the GW via the add tx endpoint just like other txs.
@@ -280,7 +292,7 @@ impl AccountTransactionGenerator {
         rpc_invoke_tx(invoke_tx_args)
     }
 
-    pub fn sender_address(&mut self) -> ContractAddress {
+    pub fn sender_address(&self) -> ContractAddress {
         self.account.sender_address
     }
 
diff --git a/crates/starknet_integration_tests/src/end_to_end_integration.rs b/crates/starknet_integration_tests/src/end_to_end_integration.rs
index 60108da02c2..1fd47d63304 100644
--- a/crates/starknet_integration_tests/src/end_to_end_integration.rs
+++ b/crates/starknet_integration_tests/src/end_to_end_integration.rs
@@ -48,7 +48,7 @@ async fn await_block(
         .ok_or(())
 }
 
-pub async fn end_to_end_integration(mut tx_generator: MultiAccountTransactionGenerator) {
+pub async fn end_to_end_integration(tx_generator: MultiAccountTransactionGenerator) {
     const EXPECTED_BLOCK_NUMBER: BlockNumber = BlockNumber(15);
 
     info!("Running integration test setup.");
diff --git a/crates/starknet_integration_tests/src/utils.rs b/crates/starknet_integration_tests/src/utils.rs
index cde08ebda2d..c90a29f1f29 100644
--- a/crates/starknet_integration_tests/src/utils.rs
+++ b/crates/starknet_integration_tests/src/utils.rs
@@ -165,11 +165,11 @@ pub fn create_txs_for_integration_test(
 
     // Create RPC transactions.
     let account0_invoke_nonce1 =
-        tx_generator.account_with_id(ACCOUNT_ID_0).generate_invoke_with_tip(2);
+        tx_generator.account_with_id_mut(ACCOUNT_ID_0).generate_invoke_with_tip(2);
     let account0_invoke_nonce2 =
-        tx_generator.account_with_id(ACCOUNT_ID_0).generate_invoke_with_tip(3);
+        tx_generator.account_with_id_mut(ACCOUNT_ID_0).generate_invoke_with_tip(3);
     let account1_invoke_nonce1 =
-        tx_generator.account_with_id(ACCOUNT_ID_1).generate_invoke_with_tip(4);
+        tx_generator.account_with_id_mut(ACCOUNT_ID_1).generate_invoke_with_tip(4);
 
     vec![account0_invoke_nonce1, account0_invoke_nonce2, account1_invoke_nonce1]
 }
@@ -180,7 +180,7 @@ fn create_account_txs(
     n_txs: usize,
 ) -> Vec<RpcTransaction> {
     (0..n_txs)
-        .map(|_| tx_generator.account_with_id(account_id).generate_invoke_with_tip(1))
+        .map(|_| tx_generator.account_with_id_mut(account_id).generate_invoke_with_tip(1))
         .collect()
 }