diff --git a/lib/types/crypto-types.js b/lib/types/crypto-types.js
--- a/lib/types/crypto-types.js
+++ b/lib/types/crypto-types.js
@@ -130,4 +130,5 @@
     contentIdentityKeys: OLMIdentityKeys,
     initialEncryptedContent: string,
   ) => Promise<string>,
+  +getOneTimeKeys: (numberOfKeys: number) => Promise<OneTimeKeysResultValues>,
 };
diff --git a/lib/utils/olm-utils.js b/lib/utils/olm-utils.js
--- a/lib/utils/olm-utils.js
+++ b/lib/utils/olm-utils.js
@@ -75,6 +75,18 @@
   return { prekey, prekeySignature };
 }
 
+function getAccountOneTimeKeys(
+  account: OlmAccount,
+  numberOfKeys: number,
+): $ReadOnlyArray<string> {
+  let oneTimeKeys = getOneTimeKeyValuesFromBlob(account.one_time_keys());
+  if (oneTimeKeys.length < numberOfKeys) {
+    account.generate_one_time_keys(numberOfKeys - oneTimeKeys.length);
+    oneTimeKeys = getOneTimeKeyValuesFromBlob(account.one_time_keys());
+  }
+  return oneTimeKeys;
+}
+
 function retrieveAccountKeysSet(account: OlmAccount): AccountKeysSet {
   const identityKeys = account.identity_keys();
 
@@ -85,12 +97,7 @@
     throw new Error('invalid_prekey');
   }
 
-  let oneTimeKeys = getOneTimeKeyValuesFromBlob(account.one_time_keys());
-
-  if (oneTimeKeys.length < ONE_TIME_KEYS_NUMBER) {
-    account.generate_one_time_keys(ONE_TIME_KEYS_NUMBER);
-    oneTimeKeys = getOneTimeKeyValuesFromBlob(account.one_time_keys());
-  }
+  const oneTimeKeys = getAccountOneTimeKeys(account, ONE_TIME_KEYS_NUMBER);
 
   return { identityKeys, oneTimeKeys, prekey, prekeySignature };
 }
@@ -100,4 +107,5 @@
   getAccountPrekeysSet,
   shouldForgetPrekey,
   shouldRotatePrekey,
+  getAccountOneTimeKeys,
 };
diff --git a/native/crypto/olm-api.js b/native/crypto/olm-api.js
--- a/native/crypto/olm-api.js
+++ b/native/crypto/olm-api.js
@@ -1,6 +1,11 @@
 // @flow
 
-import type { OlmAPI, OLMIdentityKeys } from 'lib/types/crypto-types';
+import { getOneTimeKeyValues } from 'lib/shared/crypto-utils.js';
+import type {
+  OneTimeKeysResultValues,
+  OlmAPI,
+  OLMIdentityKeys,
+} from 'lib/types/crypto-types';
 
 import { commCoreModule } from '../native-modules.js';
 
@@ -24,6 +29,14 @@
       contentIdentityKeys.ed25519,
     );
   },
+  async getOneTimeKeys(numberOfKeys: number): Promise<OneTimeKeysResultValues> {
+    const { contentOneTimeKeys, notificationsOneTimeKeys } =
+      await commCoreModule.getOneTimeKeys(numberOfKeys);
+    return {
+      contentOneTimeKeys: getOneTimeKeyValues(contentOneTimeKeys),
+      notificationsOneTimeKeys: getOneTimeKeyValues(notificationsOneTimeKeys),
+    };
+  },
 };
 
 export { olmAPI };
diff --git a/web/crypto/olm-api.js b/web/crypto/olm-api.js
--- a/web/crypto/olm-api.js
+++ b/web/crypto/olm-api.js
@@ -7,13 +7,17 @@
   type OlmAPI,
   olmEncryptedMessageTypes,
   type OLMIdentityKeys,
+  type OneTimeKeysResultValues,
 } from 'lib/types/crypto-types.js';
+import { getAccountOneTimeKeys } from 'lib/utils/olm-utils.js';
 
 // methods below are just mocks to SQLite API
 // implement proper methods tracked in ENG-6462
 
 function getOlmAccount(): Account {
-  return new olm.Account();
+  const account = new olm.Account();
+  account.create();
+  return account;
 }
 // eslint-disable-next-line no-unused-vars
 function getOlmSession(deviceID: string): Session {
@@ -64,6 +68,25 @@
     storeOlmSession(session);
     return initialEncryptedMessage;
   },
+  async getOneTimeKeys(numberOfKeys: number): Promise<OneTimeKeysResultValues> {
+    const contentAccount = getOlmAccount();
+    const notifAccount = getOlmAccount();
+    const contentOneTimeKeys = getAccountOneTimeKeys(
+      contentAccount,
+      numberOfKeys,
+    );
+    contentAccount.mark_keys_as_published();
+    storeOlmAccount(contentAccount);
+
+    const notificationsOneTimeKeys = getAccountOneTimeKeys(
+      notifAccount,
+      numberOfKeys,
+    );
+    notifAccount.mark_keys_as_published();
+    storeOlmAccount(notifAccount);
+
+    return { contentOneTimeKeys, notificationsOneTimeKeys };
+  },
 };
 
 export { olmAPI };