--- a/client/rpc/src/lib.rs
+++ b/client/rpc/src/lib.rs
@@ -270,14 +270,6 @@
 			at: Option<BlockHash>,
 		) -> Result<Vec<(BlockNumber, String)>>;
 
-		/// Returns the total amount locked by staking tokens.
-		#[method(name = "appPromotion_totalStakingLocked")]
-		fn total_staking_locked(
-			&self,
-			staker: CrossAccountId,
-			at: Option<BlockHash>,
-		) -> Result<String>;
-
 		/// Returns the total amount of tokens pending withdrawal from staking.
 		#[method(name = "appPromotion_pendingUnstake")]
 		fn pending_unstake(
@@ -594,7 +586,6 @@
 		.into_iter()
 		.map(|(b, a)| (b, a.to_string()))
 		.collect::<Vec<_>>(), app_promotion_api);
-	pass_method!(total_staking_locked(staker: CrossAccountId) -> String => |v| v.to_string(), app_promotion_api);
 	pass_method!(pending_unstake(staker: Option<CrossAccountId>) -> String => |v| v.to_string(), app_promotion_api);
 	pass_method!(pending_unstake_per_block(staker: CrossAccountId) -> Vec<(BlockNumber, String)> =>
 		|v| v
--- a/primitives/app_promotion_rpc/src/lib.rs
+++ b/primitives/app_promotion_rpc/src/lib.rs
@@ -35,7 +35,6 @@
 	{
 		fn total_staked(staker: Option<CrossAccountId>) -> Result<u128>;
 		fn total_staked_per_block(staker: CrossAccountId) -> Result<Vec<(BlockNumber, u128)>>;
-		fn total_staking_locked(staker: CrossAccountId) -> Result<u128>;
 		fn pending_unstake(staker: Option<CrossAccountId>) -> Result<u128>;
 		fn pending_unstake_per_block(staker: CrossAccountId) -> Result<Vec<(BlockNumber, u128)>>;
 	}
--- a/runtime/common/runtime_apis.rs
+++ b/runtime/common/runtime_apis.rs
@@ -206,14 +206,6 @@
                     return Ok(<pallet_app_promotion::Pallet<Runtime>>::cross_id_total_staked_per_block(staker));
                 }
 
-                fn total_staking_locked(staker: CrossAccountId) -> Result<u128, DispatchError> {
-                    #[cfg(not(feature = "app-promotion"))]
-                    return unsupported!();
-
-                    #[cfg(feature = "app-promotion")]
-                    return Ok(<pallet_app_promotion::Pallet<Runtime>>::cross_id_locked_balance(staker));
-                }
-
                 fn pending_unstake(staker: Option<CrossAccountId>) -> Result<u128, DispatchError> {
                     #[cfg(not(feature = "app-promotion"))]
                     return unsupported!();
--- a/tests/src/interfaces/appPromotion/definitions.ts
+++ b/tests/src/interfaces/appPromotion/definitions.ts
@@ -22,9 +22,6 @@
 
 const CROSS_ACCOUNT_ID_TYPE = 'PalletEvmAccountBasicCrossAccountIdRepr';
 
-const collectionParam = {name: 'collection', type: 'u32'};
-const tokenParam = {name: 'tokenId', type: 'u32'};
-const propertyKeysParam = {name: 'propertyKeys', type: 'Vec<String>', isOptional: true};
 const crossAccountParam = (name = 'account') => ({name, type: CROSS_ACCOUNT_ID_TYPE});
 const atParam = {name: 'at', type: 'Hash', isOptional: true};
 
@@ -46,11 +43,6 @@
       'Returns the total amount of staked tokens per block when staked',
       [crossAccountParam('staker')],
       'Vec<(u32, u128)>',
-    ),
-    totalStakingLocked: fun(
-      'Return the total amount locked by staking tokens',
-      [crossAccountParam('staker')],
-      'u128',
     ),
     pendingUnstake: fun(
       'Returns the total amount of unstaked tokens',
--- a/tests/src/interfaces/augment-api-rpc.ts
+++ b/tests/src/interfaces/augment-api-rpc.ts
@@ -52,10 +52,6 @@
        * Returns the total amount of staked tokens per block when staked
        **/
       totalStakedPerBlock: AugmentedRpc<(staker: PalletEvmAccountBasicCrossAccountIdRepr | { Substrate: any } | { Ethereum: any } | string | Uint8Array, at?: Hash | string | Uint8Array) => Observable<Vec<ITuple<[u32, u128]>>>>;
-      /**
-       * Return the total amount locked by staking tokens
-       **/
-      totalStakingLocked: AugmentedRpc<(staker: PalletEvmAccountBasicCrossAccountIdRepr | { Substrate: any } | { Ethereum: any } | string | Uint8Array, at?: Hash | string | Uint8Array) => Observable<u128>>;
     };
     author: {
       /**