diff --git a/app/__init__.py b/app/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/app/api/__init__.py b/app/api/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/app/api/api_v1/__init__.py b/app/api/api_v1/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/app/api/api_v1/endpoints/__init__.py b/app/api/api_v1/endpoints/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/app/models/__init__.py b/app/models/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/app/schemas/__init__.py b/app/schemas/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/app/services/solana.py b/app/services/solana.py
index 9d09669..0e91318 100644
--- a/app/services/solana.py
+++ b/app/services/solana.py
@@ -3,15 +3,59 @@ import logging
 from typing import Dict, List, Optional, Any, Tuple
 import base64
 import base58
-from solana.rpc.api import Client
-from solana.keypair import Keypair
-from solana.transaction import Transaction
-from solana.rpc.types import TxOpts
-
-from app.core.config import settings
 
 logger = logging.getLogger(__name__)
 
+# Try to import Solana packages, otherwise use mock implementations
+try:
+    from solana.rpc.api import Client
+    from solana.publickey import PublicKey
+    from solana.keypair import Keypair
+    from solana.transaction import Transaction
+    from solana.rpc.types import TxOpts
+    SOLANA_AVAILABLE = True
+except ImportError:
+    logger.warning("Solana package not available. Using mock implementations.")
+    SOLANA_AVAILABLE = False
+    # Mock classes for when solana package is not available
+    class Client:
+        def __init__(self, endpoint):
+            self.endpoint = endpoint
+        
+        def get_balance(self, *args, **kwargs):
+            return {"result": {"value": 0}}
+            
+        def get_token_accounts_by_owner(self, *args, **kwargs):
+            return {"result": {"value": []}}
+            
+        def get_token_supply(self, *args, **kwargs):
+            return {"result": {"value": {"decimals": 9}}}
+            
+        def send_transaction(self, *args, **kwargs):
+            return {"error": {"message": "Solana package not available"}}
+    
+    class PublicKey:
+        def __init__(self, key):
+            self.key = key
+    
+    class Keypair:
+        @classmethod
+        def from_secret_key(cls, *args, **kwargs):
+            return cls()
+            
+        @property
+        def public_key(self):
+            return PublicKey("mock")
+    
+    class Transaction:
+        def sign(self, *args, **kwargs):
+            pass
+    
+    class TxOpts:
+        pass
+
+from app.core.config import settings
+
 # Initialize Solana client
 solana_client = Client(settings.SOLANA_RPC_URL)
 
@@ -57,6 +101,10 @@ def load_wallet_keypair() -> Optional[Keypair]:
 
 def get_wallet_balance() -> Dict[str, float]:
     """Get SOL and USDC balance for the configured wallet"""
+    if not SOLANA_AVAILABLE:
+        logger.warning("Solana package not available. Returning mock balances.")
+        return {"SOL": 0.0, "USDC": 0.0}
+        
     keypair = load_wallet_keypair()
     if not keypair:
         return {"SOL": 0.0, "USDC": 0.0}
@@ -160,6 +208,10 @@ def send_transaction(transaction: Transaction, signers: List[Keypair], opts: Opt
     Returns:
         Tuple of (success, signature, error_message)
     """
+    if not SOLANA_AVAILABLE:
+        logger.warning("Solana package not available. Cannot send transaction.")
+        return False, "", "Solana package not available"
+        
     try:
         # Sign the transaction
         transaction.sign(*signers)
diff --git a/app/utils/__init__.py b/app/utils/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/requirements.txt b/requirements.txt
index f854a88..d622bbd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,4 +11,5 @@ loguru>=0.7.0
 python-dotenv>=1.0.0
 ruff>=0.0.292
 httpx>=0.25.0
-pytest>=7.4.2
\ No newline at end of file
+pytest>=7.4.2
+base58>=2.1.1
\ No newline at end of file