diff --git a/setup.py b/setup.py
old mode 100644
new mode 100755
index 2da8546..d24279d
--- a/setup.py
+++ b/setup.py
@@ -70,6 +70,7 @@ def read(*names, **kwargs):
         "sqlglot~=25.30.0",
         "mcp~=1.9.0",
         "pyperclip~=1.8.2",
+        "python-dotenv~=1.0.0",
     ],
     extras_require={
         # eg:
diff --git a/src/datapilot/cli/main.py b/src/datapilot/cli/main.py
index f0f1796..a58c2cb 100644
--- a/src/datapilot/cli/main.py
+++ b/src/datapilot/cli/main.py
@@ -1,12 +1,91 @@
+import json
+import os
+import re
+from pathlib import Path
+
 import click
+from dotenv import load_dotenv
 
 from datapilot.core.mcp_utils.mcp import mcp
 from datapilot.core.platforms.dbt.cli.cli import dbt
 
 
+def load_config_from_file():
+    """Load configuration from ~/.altimate/altimate.json if it exists."""
+    config_path = Path.home() / ".altimate" / "altimate.json"
+
+    if not config_path.exists():
+        return {}
+
+    try:
+        with config_path.open() as f:
+            config = json.load(f)
+        return config
+    except (OSError, json.JSONDecodeError) as e:
+        click.echo(f"Warning: Failed to load config from {config_path}: {e}", err=True)
+        return {}
+
+
+def substitute_env_vars(value):
+    """Replace ${env:ENV_VARIABLE} patterns with actual environment variable values."""
+    if not isinstance(value, str):
+        return value
+
+    # Pattern to match ${env:VARIABLE_NAME}
+    pattern = r"\$\{env:([^}]+)\}"
+
+    def replacer(match):
+        env_var = match.group(1)
+        return os.environ.get(env_var, match.group(0))
+
+    return re.sub(pattern, replacer, value)
+
+
+def process_config(config):
+    """Process configuration dictionary to substitute environment variables."""
+    processed = {}
+    for key, value in config.items():
+        processed[key] = substitute_env_vars(value)
+    return processed
+
+
 @click.group()
-def datapilot():
+@click.option("--token", required=False, help="Your API token for authentication.", hide_input=True)
+@click.option("--instance-name", required=False, help="Your tenant ID.")
+@click.option("--backend-url", required=False, help="Altimate's Backend URL", default="https://api.myaltimate.com")
+@click.pass_context
+def datapilot(ctx, token, instance_name, backend_url):
     """Altimate CLI for DBT project management."""
+    # Load .env file from current directory if it exists
+    load_dotenv()
+
+    # Load configuration from file
+    file_config = load_config_from_file()
+    file_config = process_config(file_config)
+
+    # Map config file keys to CLI option names
+    config_mapping = {"altimateApiKey": "token", "altimateInstanceName": "instance_name", "altimateUrl": "backend_url"}
+
+    # Store common options in context, with CLI args taking precedence
+    ctx.ensure_object(dict)
+
+    # Apply file config first
+    for file_key, cli_key in config_mapping.items():
+        if file_key in file_config:
+            ctx.obj[cli_key] = file_config[file_key]
+
+    # Override with CLI arguments if provided
+    if token is not None:
+        ctx.obj["token"] = token
+    if instance_name is not None:
+        ctx.obj["instance_name"] = instance_name
+    if backend_url != "https://api.myaltimate.com":  # Only override if not default
+        ctx.obj["backend_url"] = backend_url
+
+    # Set defaults if nothing was provided
+    ctx.obj.setdefault("token", None)
+    ctx.obj.setdefault("instance_name", None)
+    ctx.obj.setdefault("backend_url", "https://api.myaltimate.com")
 
 
 datapilot.add_command(dbt)
diff --git a/src/datapilot/core/platforms/dbt/cli/cli.py b/src/datapilot/core/platforms/dbt/cli/cli.py
index 8472ebf..0f63167 100644
--- a/src/datapilot/core/platforms/dbt/cli/cli.py
+++ b/src/datapilot/core/platforms/dbt/cli/cli.py
@@ -24,13 +24,14 @@
 
 # New dbt group
 @click.group()
-def dbt():
+@click.pass_context
+def dbt(ctx):
     """DBT specific commands."""
+    # Ensure context object exists
+    ctx.ensure_object(dict)
 
 
 @dbt.command("project-health")
-@click.option("--token", required=False, help="Your API token for authentication.")
-@click.option("--instance-name", required=False, help="Your tenant ID.")
 @click.option(
     "--manifest-path",
     required=True,
@@ -57,21 +58,24 @@ def dbt():
     default=None,
     help="Selective model testing. Specify one or more models to run tests on.",
 )
-@click.option("--backend-url", required=False, help="Altimate's Backend URL", default="https://api.myaltimate.com")
+@click.pass_context
 def project_health(
-    token,
-    instance_name,
+    ctx,
     manifest_path,
     catalog_path,
     config_path=None,
     config_name=None,
     select=None,
-    backend_url="https://api.myaltimate.com",
 ):
     """
     Validate the DBT project's configuration and structure.
     :param manifest_path: Path to the DBT manifest file.
     """
+    # Get common options from parent context
+    token = ctx.parent.obj.get("token")
+    instance_name = ctx.parent.obj.get("instance_name")
+    backend_url = ctx.parent.obj.get("backend_url")
+
     config = None
     if config_path:
         config = load_config(config_path)
@@ -131,25 +135,32 @@ def project_health(
 
 
 @dbt.command("onboard")
-@click.option("--token", prompt="API Token", help="Your API token for authentication.")
-@click.option("--instance-name", prompt="Instance Name", help="Your tenant ID.")
 @click.option("--dbt_core_integration_id", prompt="DBT Core Integration ID", help="DBT Core Integration ID")
 @click.option(
     "--dbt_core_integration_environment", default="PROD", prompt="DBT Core Integration Environment", help="DBT Core Integration Environment"
 )
 @click.option("--manifest-path", required=True, prompt="Manifest Path", help="Path to the manifest file.")
 @click.option("--catalog-path", required=False, prompt=False, help="Path to the catalog file.")
-@click.option("--backend-url", required=False, help="Altimate's Backend URL", default="https://api.myaltimate.com")
+@click.pass_context
 def onboard(
-    token,
-    instance_name,
+    ctx,
     dbt_core_integration_id,
     dbt_core_integration_environment,
     manifest_path,
     catalog_path,
-    backend_url="https://api.myaltimate.com",
 ):
     """Onboard a manifest file to DBT."""
+    # Get common options from parent context
+    token = ctx.parent.obj.get("token")
+    instance_name = ctx.parent.obj.get("instance_name")
+    backend_url = ctx.parent.obj.get("backend_url")
+
+    # For onboard command, token and instance_name are required
+    if not token:
+        token = click.prompt("API Token")
+    if not instance_name:
+        instance_name = click.prompt("Instance Name")
+
     check_token_and_instance(token, instance_name)
 
     if not validate_credentials(token, backend_url, instance_name):
diff --git a/tests/core/platform/dbt/test_cli.py b/tests/core/platform/dbt/test_cli.py
index 04242b7..b7f6f45 100644
--- a/tests/core/platform/dbt/test_cli.py
+++ b/tests/core/platform/dbt/test_cli.py
@@ -1,7 +1,7 @@
 # test_app.py
 from click.testing import CliRunner
 
-from datapilot.core.platforms.dbt.cli.cli import project_health
+from datapilot.cli.main import datapilot
 
 
 def test_project_health_with_required_and_optional_args():
@@ -11,7 +11,9 @@ def test_project_health_with_required_and_optional_args():
     config_path = "tests/data/config.yml"
 
     # Simulate command invocation
-    result = runner.invoke(project_health, ["--manifest-path", manifest_path, "--catalog-path", catalog_path, "--config-path", config_path])
+    result = runner.invoke(
+        datapilot, ["dbt", "project-health", "--manifest-path", manifest_path, "--catalog-path", catalog_path, "--config-path", config_path]
+    )
 
     assert result.exit_code == 0  # Ensure the command executed successfully
     # Add more assertions here to validate the behavior of your command,
@@ -25,8 +27,10 @@ def test_project_health_with_only_required_arg():
 
     # Simulate command invocation without optional arguments
     result = runner.invoke(
-        project_health,
+        datapilot,
         [
+            "dbt",
+            "project-health",
             "--manifest-path",
             manifest_path,
         ],
@@ -43,8 +47,10 @@ def test_project_health_with_only_required_arg_version1_6():
 
     # Simulate command invocation without optional arguments
     result = runner.invoke(
-        project_health,
+        datapilot,
         [
+            "dbt",
+            "project-health",
             "--manifest-path",
             manifest_path,
         ],
@@ -61,8 +67,10 @@ def test_project_health_with_macro_args():
 
     # Simulate command invocation without optional arguments
     result = runner.invoke(
-        project_health,
+        datapilot,
         [
+            "dbt",
+            "project-health",
             "--manifest-path",
             manifest_path,
         ],
@@ -76,8 +84,10 @@ def test_project_health_with_macro_args():
 
     # Simulate command invocation without optional arguments
     result = runner.invoke(
-        project_health,
+        datapilot,
         [
+            "dbt",
+            "project-health",
             "--manifest-path",
             manifest_path,
         ],
@@ -95,7 +105,9 @@ def test_project_health_with_required_and_optional_args_v12():
     config_path = "tests/data/config.yml"
 
     # Simulate command invocation
-    result = runner.invoke(project_health, ["--manifest-path", manifest_path, "--catalog-path", catalog_path, "--config-path", config_path])
+    result = runner.invoke(
+        datapilot, ["dbt", "project-health", "--manifest-path", manifest_path, "--catalog-path", catalog_path, "--config-path", config_path]
+    )
 
     assert result.exit_code == 0  # Ensure the command executed successfully
     # Add more assertions here to validate the behavior of your command,