diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -831,6 +831,9 @@
     // Map from Script ID to key metadata (for watch-only keys).
     std::map<CScriptID, CKeyMetadata> m_script_metadata GUARDED_BY(cs_wallet);
 
+    bool WriteKeyMetadata(const CKeyMetadata &meta, const CPubKey &pubkey,
+                          bool overwrite);
+
     typedef std::map<unsigned int, CMasterKey> MasterKeyMap;
     MasterKeyMap mapMasterKeys;
     unsigned int nMasterKeyMaxID = 0;
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -419,6 +419,13 @@
     m_script_metadata[script_id] = meta;
 }
 
+// Writes a keymetadata for a public key. overwrite specifies whether to
+// overwrite an existing metadata for that key if there exists one.
+bool CWallet::WriteKeyMetadata(const CKeyMetadata &meta, const CPubKey &pubkey,
+                               const bool overwrite) {
+    return WalletBatch(*database).WriteKeyMetadata(meta, pubkey, overwrite);
+}
+
 bool CWallet::LoadCryptedKey(const CPubKey &vchPubKey,
                              const std::vector<uint8_t> &vchCryptedSecret) {
     return CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret);