diff --git a/.env.sample b/.env.sample
index 5337de10..f3b5792f 100644
--- a/.env.sample
+++ b/.env.sample
@@ -3,12 +3,4 @@ FINNHUB_API_KEY="YOUR_FINNHUB_API_KEY"
 
 # OpenAI API Key
 OPENAI_API_KEY="YOUR_OPENAI_API_KEY"
-
-# Data directory
-DATA_DIR="/Users/yluo/Documents/Code/ScAI/FR1-data"
-
-# LLM settings
-LLM_PROVIDER="openai"
-DEEP_THINK_LLM="o4-mini"
-QUICK_THINK_LLM="gpt-4o-mini"
 BACKEND_URL="https://api.openai.com/v1"
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 4ebf99e3..c3c6254e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,5 @@ eval_results/
 eval_data/
 *.egg-info/
 .env
+.vscode/
+results/
diff --git a/cli/main.py b/cli/main.py
index 64616ee1..81b2dc7a 100644
--- a/cli/main.py
+++ b/cli/main.py
@@ -20,6 +20,8 @@ from rich import box
 from rich.align import Align
 from rich.rule import Rule
 
+from dotenv import load_dotenv
+load_dotenv()
 from tradingagents.graph.trading_graph import TradingAgentsGraph
 from tradingagents.default_config import DEFAULT_CONFIG
 from cli.models import AnalystType
diff --git a/tradingagents/agents/utils/memory.py b/tradingagents/agents/utils/memory.py
index 69b8ab8c..e9315ab4 100644
--- a/tradingagents/agents/utils/memory.py
+++ b/tradingagents/agents/utils/memory.py
@@ -1,3 +1,4 @@
+import os
 import chromadb
 from chromadb.config import Settings
 from openai import OpenAI
@@ -5,11 +6,14 @@ from openai import OpenAI
 
 class FinancialSituationMemory:
     def __init__(self, name, config):
-        if config["backend_url"] == "http://localhost:11434/v1":
+        backend_url = os.environ.get("BACKEND_URL", config.get("backend_url"))
+        api_key = os.environ.get("OPENAI_API_KEY", config.get("openai_api_key"))
+
+        if backend_url == "http://localhost:11434/v1":
             self.embedding = "nomic-embed-text"
         else:
             self.embedding = "text-embedding-3-small"
-        self.client = OpenAI(base_url=config["backend_url"])
+        self.client = OpenAI(base_url=backend_url, api_key=api_key)
         self.chroma_client = chromadb.Client(Settings(allow_reset=True))
         self.situation_collection = self.chroma_client.create_collection(name=name)
 
diff --git a/tradingagents/default_config.py b/tradingagents/default_config.py
index b443318c..ddd85965 100644
--- a/tradingagents/default_config.py
+++ b/tradingagents/default_config.py
@@ -16,7 +16,7 @@ DEFAULT_CONFIG = {
     "llm_provider": "openai",
     "deep_think_llm": "o4-mini",
     "quick_think_llm": "gpt-4o-mini",
-    "backend_url": "https://api.openai.com/v1",
+    "backend_url": os.getenv("BACKEND_URL", "https://api.openai.com/v1"),
     # Debate and discussion settings
     "max_debate_rounds": 1,
     "max_risk_discuss_rounds": 1,
diff --git a/tradingagents/graph/trading_graph.py b/tradingagents/graph/trading_graph.py
index 80a29e53..1b890716 100644
--- a/tradingagents/graph/trading_graph.py
+++ b/tradingagents/graph/trading_graph.py
@@ -48,6 +48,12 @@ class TradingAgentsGraph:
         self.debug = debug
         self.config = config or DEFAULT_CONFIG
 
+        # Override config with environment variables if set
+        self.config["backend_url"] = os.environ.get("BACKEND_URL", self.config.get("backend_url"))
+        self.config["OPENAI_API_KEY"] = os.environ.get("OPENAI_API_KEY", self.config.get("OPENAI_API_KEY"))
+        self.config["deep_think_llm"] = os.environ.get("DEEP_THINK_LLM", self.config.get("deep_think_llm"))
+        self.config["quick_think_llm"] = os.environ.get("QUICK_THINK_LLM", self.config.get("quick_think_llm"))
+
         # Update the interface's config
         set_config(self.config)