diff --git a/src/index.ts b/src/index.ts
index 284092f7..db098cf0 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -17,6 +17,7 @@ declare global {
       Utils: typeof import('./utils/expose')
       BeeError: typeof import('./utils/error').BeeError
       BeeArgumentError: typeof import('./utils/error').BeeArgumentError
+      BeeResponseError: typeof import('./utils/error').BeeResponseError
     }
   }
 }
diff --git a/src/utils/expose.ts b/src/utils/expose.ts
index 905d44cd..c8534923 100644
--- a/src/utils/expose.ts
+++ b/src/utils/expose.ts
@@ -49,6 +49,8 @@ export { keccak256Hash } from './hash'
 export { makeMaxTarget } from './pss'
 
 export {
+  getAmountForTtl,
+  getDepthForCapacity,
   getStampCostInBzz,
   getStampCostInPlur,
   getStampMaximumCapacityBytes,