diff --git a/packages/apps-config/src/api/spec/aleph-zero.ts b/packages/apps-config/src/api/spec/aleph-zero.ts
index 92b0e99c665e..06d2773b8430 100644
--- a/packages/apps-config/src/api/spec/aleph-zero.ts
+++ b/packages/apps-config/src/api/spec/aleph-zero.ts
@@ -90,6 +90,16 @@ export default {
             description: '',
             params: [],
             type: 'u32'
+          },
+          yearly_inflation: {
+            description: 'Returns inflation from now to now + one year.',
+            params: [],
+            type: 'Perbill'
+          },
+          current_era_payout: {
+            description: 'Returns payout. First tuple item is a validators payout, second is the rest.',
+            params: [],
+            type: '(Balance, Balance)'
           }
         },
         version: 1
diff --git a/packages/apps-config/src/api/typesBundle.ts b/packages/apps-config/src/api/typesBundle.ts
index 680682da78c3..15adf0c14584 100644
--- a/packages/apps-config/src/api/typesBundle.ts
+++ b/packages/apps-config/src/api/typesBundle.ts
@@ -98,6 +98,16 @@ export const typesBundle = {
                 "description": "",
                 "params": [],
                 "type": "u32"
+              },
+              "yearly_inflation": {
+                "description": "Returns inflation from now to now + one year.",
+                "params": [],
+                "type": "Perbill"
+              },
+              "current_era_payout": {
+                "description": "Returns payout. First tuple item is a validators payout, second is the rest.",
+                "params": [],
+                "type": "(Balance, Balance)"
               }
             },
             "version": 1
diff --git a/packages/apps-config/src/types.ts b/packages/apps-config/src/types.ts
index 8d57eda9ffae..3d0a8811d9cc 100644
--- a/packages/apps-config/src/types.ts
+++ b/packages/apps-config/src/types.ts
@@ -1,6 +1,26 @@
 // Copyright 2017-2024 @polkadot/apps-config authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
+import type { ApiTypes, AugmentedCall, DecoratedCallBase } from '@polkadot/api-base/types';
+import type { Perbill } from '@polkadot/types/interfaces/runtime';
+import type { Observable } from '@polkadot/types/types';
+
+declare module '@polkadot/api-base/types/calls' {
+  interface AugmentedCalls<ApiType extends ApiTypes> {
+    /** 0xbc9d89904f5b923f/1 */
+    alephSessionApi: {
+      /**
+           * The API to query account nonce (aka transaction index)
+           **/
+      yearlyInflation: AugmentedCall<ApiType, () => Observable<Perbill>>;
+      /**
+           * Generic call
+           **/
+      [key: string]: DecoratedCallBase<ApiType>;
+    };
+  }
+}
+
 export interface TOptions {
   ns?: string;
   replace?: Record<string, unknown>