diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..141c75a
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,69 @@
+name: Continuous Integration
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        python-version: [3.13]
+
+    steps:
+      # Checkout the code
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      # Set up Python
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      # Install dependencies
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r server/src/requirements.txt
+
+      # Set AWS region and mock credentials
+      - name: Configure AWS Credentials for Tests
+        run: |
+          echo "Setting AWS region and mock credentials..."
+          export AWS_REGION=us-east-1
+          export AWS_ACCESS_KEY_ID=fake_access_key
+          export AWS_SECRET_ACCESS_KEY=fake_secret_key
+          export AWS_DEFAULT_REGION=us-east-1
+
+      # Run tests and generate coverage report
+      - name: Run tests with coverage
+        run: |
+          export PYTHONPATH=$(pwd)/server/src
+          pytest --cov=src/functions --cov=server/src --cov-report=term-missing --cov-report=xml --cov-report=html
+
+      # Upload coverage report as an artifact
+      - name: Upload coverage report (HTML)
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-report-html
+          path: htmlcov/
+
+      # Upload XML coverage report for CI tools
+      - name: Upload coverage report (XML)
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-report-xml
+          path: coverage.xml
+
+      # Show coverage summary in logs
+      - name: Show coverage summary
+        run: cat coverage.xml
diff --git a/server/src/functions/permanent_data/permanent_data.py b/server/src/functions/permanent_data/permanent_data.py
index b204f77..b0f2190 100644
--- a/server/src/functions/permanent_data/permanent_data.py
+++ b/server/src/functions/permanent_data/permanent_data.py
@@ -12,6 +12,7 @@ from concurrent.futures import ThreadPoolExecutor
 session = requests.Session()
 
 # Setup DynamoDB client for Lambda
+os.environ.setdefault('AWS_DEFAULT_REGION', 'us-east-1')
 dynamodb = boto3.resource("dynamodb")
 table_name = os.environ.get("DYNAMODB_TABLE", "permanent_data")
 table = dynamodb.Table(table_name)
@@ -208,4 +209,4 @@ if __name__ == "__main__":
         for future in futures:
             data.extend(future.result())
 
-    print(json.dumps(data))
\ No newline at end of file
+    print(json.dumps(data))
diff --git a/server/src/functions/return_all_data/lambda_function.py b/server/src/functions/return_all_data/lambda_function.py
index 614babb..198198b 100644
--- a/server/src/functions/return_all_data/lambda_function.py
+++ b/server/src/functions/return_all_data/lambda_function.py
@@ -3,6 +3,7 @@ import os
 import boto3
 from boto3.dynamodb.conditions import Key, Attr
 
+os.environ.setdefault('AWS_DEFAULT_REGION', 'us-east-1')
 dynamodb = boto3.resource('dynamodb')
 
 def lambda_handler(event, context):
diff --git a/server/src/functions/return_newest_data/lambda_function.py b/server/src/functions/return_newest_data/lambda_function.py
index 2cc0e88..82d1c7f 100644
--- a/server/src/functions/return_newest_data/lambda_function.py
+++ b/server/src/functions/return_newest_data/lambda_function.py
@@ -3,6 +3,7 @@ import json
 import os
 from boto3.dynamodb.conditions import Key, Attr
 
+os.environ.setdefault('AWS_DEFAULT_REGION', 'us-east-1')
 dynamodb = boto3.resource('dynamodb')
 gsi_name = "objectType-index"
 
diff --git a/server/src/functions/transient_data/transient_data.py b/server/src/functions/transient_data/transient_data.py
index 932a853..ef7c4ec 100644
--- a/server/src/functions/transient_data/transient_data.py
+++ b/server/src/functions/transient_data/transient_data.py
@@ -11,6 +11,7 @@ from concurrent.futures import ThreadPoolExecutor
 session = requests.Session()
 
 # Setup DynamoDB client
+os.environ.setdefault('AWS_DEFAULT_REGION', 'us-east-1')
 dynamodb = boto3.resource("dynamodb")
 table_name = os.environ.get("DYNAMODB_TABLE", "transient_data")
 table = dynamodb.Table(table_name)
@@ -224,4 +225,4 @@ if __name__ == "__main__":
         for future in futures:
             data.extend(future.result())
 
-    print(json.dumps(data))
\ No newline at end of file
+    print(json.dumps(data))
diff --git a/server/src/requirements.txt b/server/src/requirements.txt
index db435d0..d69abb0 100644
--- a/server/src/requirements.txt
+++ b/server/src/requirements.txt
@@ -1,3 +1,5 @@
-boto3==1.36.23
-Requests==2.32.3
-xmltodict==0.14.2
+boto3
+Requests
+xmltodict
+pytest
+pytest-cov
diff --git a/server/src/test/conftest.py b/server/src/test/conftest.py
new file mode 100644
index 0000000..de520f6
--- /dev/null
+++ b/server/src/test/conftest.py
@@ -0,0 +1,5 @@
+import sys
+import os
+
+# Ensure the /server path is in PYTHONPATH
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '../../')))