diff --git a/src/ajv.ts b/src/ajv.ts
index 693b83e..d8d9268 100644
--- a/src/ajv.ts
+++ b/src/ajv.ts
@@ -1,10 +1,31 @@
 import Ajv, { type ErrorObject } from 'ajv'
+import { ether_to_gwei } from './constants';
 
-export function validatePayload (
+
+function validDpositAmounts(data: boolean, deposits: string[]) {
+  let sum = 0;
+  for (let i = 0; i < deposits.length; i++) {
+    const amount = parseInt(deposits[i]);
+    if (amount % ether_to_gwei !== 0 || amount > 32 * ether_to_gwei) {
+      return false
+    }
+    sum += amount;
+  }
+  if (sum !== 32 * ether_to_gwei) { return false } {
+    return true
+  }
+}
+
+export function validatePayload(
   data: any,
   schema: any,
 ): ErrorObject[] | undefined | null | boolean {
   const ajv = new Ajv()
+  ajv.addKeyword({
+    keyword: 'validDpositAmounts',
+    validate: validDpositAmounts,
+    errors: true,
+  });
   const validate = ajv.compile(schema)
   const isValid = validate(data)
   if (!isValid) {
diff --git a/src/schema.ts b/src/schema.ts
index d431816..8467a39 100644
--- a/src/schema.ts
+++ b/src/schema.ts
@@ -53,6 +53,14 @@ export const definitionSchema = {
         required: ['fee_recipient_address', 'withdrawal_address'],
       },
     },
+    deposit_amounts: {
+      type: 'array',
+      items: {
+        type: 'string',
+        pattern: "^[0-9]+$",
+      },
+      validDpositAmounts:true
+    },
   },
-  required: ['name', 'operators', 'validators'],
+  required: ['name','operators', 'validators'],
 }
diff --git a/src/verification/common.ts b/src/verification/common.ts
index b903267..9f015db 100644
--- a/src/verification/common.ts
+++ b/src/verification/common.ts
@@ -320,9 +320,10 @@ export const signingRoot = (
 
 
 const verifyLockData = async (clusterLock: ClusterLock): Promise<boolean> => {
-    const ec = new elliptic.ec('secp256k1')
-    const validators = clusterLock.distributed_validators
-    const nodeSignatures = clusterLock.node_signatures
+    const ec = new elliptic.ec('secp256k1');
+    const validators = clusterLock.distributed_validators;
+    const nodeSignatures = clusterLock.node_signatures;
+
     const depositDomain = computeDomain(
         fromHexString(DOMAIN_DEPOSIT),
         clusterLock.cluster_definition.fork_version,
@@ -344,7 +345,7 @@ const verifyLockData = async (clusterLock: ClusterLock): Promise<boolean> => {
         const validatorPublicShares = validator.public_shares;
         const distributedPublicKey = validator.distributed_public_key;
 
-
+        //Needed in signature_aggregate verification
         for (const element of validatorPublicShares) {
             pubShares.push(fromHexString(element))
         }
diff --git a/test/methods.test.ts b/test/methods.test.ts
index 9834d8d..ba38392 100644
--- a/test/methods.test.ts
+++ b/test/methods.test.ts
@@ -1,6 +1,6 @@
 import { ethers } from 'ethers'
 import { Client, validateClusterLock } from '../src/index'
-import { clusterConfigV1X8, clusterLockV1X7, clusterLockV1X8 } from './fixtures.js'
+import { clusterConfigV1X7, clusterConfigV1X8, clusterLockV1X7, clusterLockV1X8 } from './fixtures.js'
 import { SDK_VERSION } from '../src/constants'
 import { Base } from '../src/base'
 import { validatePayload } from '../src/ajv'
@@ -70,6 +70,36 @@ describe('Cluster Client', () => {
     }
   })
 
+  test('createClusterDefinition should accept a configuration without deposit_amounts ', async () => {
+    clientInstance['request'] = jest
+      .fn()
+      .mockReturnValue(Promise.resolve({ config_hash: mockConfigHash }))
+
+    const configHash = await clientInstance.createClusterDefinition({
+      ...clusterConfigV1X7,
+    })
+
+    expect(configHash).toEqual(mockConfigHash)
+  })
+
+  test('createClusterDefinition should throw on not valid deposit_amounts ', async () => {
+    clientInstance['request'] = jest
+      .fn()
+      .mockReturnValue(Promise.resolve({ config_hash: mockConfigHash }))
+    try {
+     await clientInstance.createClusterDefinition({
+        ...clusterConfigV1X7,
+        deposit_amounts: ["34000000"]
+      })
+
+    } catch (error: any) {
+      console.log(error.message)
+      expect(error.message).toEqual(
+        "Schema compilation errors', must pass \"validDpositAmounts\" keyword validation",
+      )
+    }
+  })
+
   test('validatePayload should throw an error on empty schema', async () => {
     try {
       validatePayload({ ...clusterConfigV1X8, operators: [] }, '')