diff --git a/ai-ml/requirements.txt b/ai-ml/requirements.txt
index 91b30c8..bc380bd 100644
--- a/ai-ml/requirements.txt
+++ b/ai-ml/requirements.txt
@@ -18,3 +18,4 @@ python-dotenv
 groq
 yake
 pytest
+pyjwt
\ No newline at end of file
diff --git a/ai-ml/weak_topic_detection/app/api/weak_topic_api.py b/ai-ml/weak_topic_detection/app/api/weak_topic_api.py
index 33eece7..e6780e4 100644
--- a/ai-ml/weak_topic_detection/app/api/weak_topic_api.py
+++ b/ai-ml/weak_topic_detection/app/api/weak_topic_api.py
@@ -1,4 +1,4 @@
-from app.services.weak_topic_service import WeakTopicService
+from weak_topic_detection.app.services.weak_topic_service import WeakTopicService
 
 
 class WeakTopicAPI:
@@ -9,4 +9,4 @@ def __init__(self):
 
     def get_weak_topics(self):
         """Return the weak topics detected from quiz results."""
-        return self.service.get_weak_topics()
\ No newline at end of file
+        return self.service.get_weak_topics()
diff --git a/ai-ml/weak_topic_detection/app/detectors/weak_topic_detector.py b/ai-ml/weak_topic_detection/app/detectors/weak_topic_detector.py
index 4198212..f8839ee 100644
--- a/ai-ml/weak_topic_detection/app/detectors/weak_topic_detector.py
+++ b/ai-ml/weak_topic_detection/app/detectors/weak_topic_detector.py
@@ -1,5 +1,5 @@
 from collections import defaultdict
-from app.models.quiz_result import QuizResult
+from weak_topic_detection.app.models.quiz_result import QuizResult
 
 
 class WeakTopicDetector:
@@ -54,4 +54,4 @@ def detect(self, results: list[QuizResult]) -> list[dict]:
         # Weakest topics first
         weak_topics.sort(key=lambda item: item["accuracy"])
 
-        return weak_topics
\ No newline at end of file
+        return weak_topics
diff --git a/ai-ml/weak_topic_detection/app/main.py b/ai-ml/weak_topic_detection/app/main.py
new file mode 100644
index 0000000..09bbe67
--- /dev/null
+++ b/ai-ml/weak_topic_detection/app/main.py
@@ -0,0 +1,69 @@
+"""
+Team Lambda Weak Topic Detection API — FastAPI service.
+
+Run from ai-ml/ (so weak_topic_detection.* and quiz_generator.*
+imports resolve):
+  uvicorn weak_topic_detection.app.main:app --reload --port <TBD — confirm with captain>
+
+Interactive docs (once running): http://127.0.0.1:<port>/docs
+"""
+
+from fastapi import FastAPI, Depends
+from fastapi.middleware.cors import CORSMiddleware
+
+# Reusing the JWT auth dependency already built for quiz_generator
+# (Contract v1, Section 10) rather than duplicating it — same secret,
+# same failure modes, one source of truth for how auth works.
+from quiz_generator.app.auth import get_current_user_id
+
+from weak_topic_detection.app.services.weak_topic_service import WeakTopicService
+
+app = FastAPI(title="StudyMind Weak Topic Detection API — Team Lambda")
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["http://localhost:5173"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+_service: WeakTopicService | None = None
+
+
+def get_service() -> WeakTopicService:
+    global _service
+    if _service is None:
+        _service = WeakTopicService()
+    return _service
+
+
+@app.get("/health")
+def health_check():
+    return {"status": "ok"}
+
+
+@app.get("/weak-topics")
+def get_weak_topics_endpoint(user_id: str = Depends(get_current_user_id)):
+    """
+    Requires "Authorization: Bearer <jwt>". user_id is derived from
+    the verified token and returned alongside the results so the
+    caller can confirm whose data this is.
+
+    IMPORTANT — current limitation: WeakTopicService reads from a
+    static demo dataset (data/quiz_results.json), not live per-user
+    quiz submissions. The detection logic itself works correctly, but
+    it does not yet filter by user_id — every caller currently sees
+    the same demo results. Auth is enforced here so the endpoint's
+    contract (who can call it) is correct now; per-user quiz-result
+    ingestion is separate follow-up work once real quiz submissions
+    are wired in from the frontend.
+    """
+    service = get_service()
+    weak_topics = service.get_weak_topics()
+
+    return {
+        "success": True,
+        "user_id": user_id,
+        "weak_topics": weak_topics,
+    }
\ No newline at end of file
diff --git a/ai-ml/weak_topic_detection/app/services/weak_topic_service.py b/ai-ml/weak_topic_detection/app/services/weak_topic_service.py
index f95b6d8..6146f23 100644
--- a/ai-ml/weak_topic_detection/app/services/weak_topic_service.py
+++ b/ai-ml/weak_topic_detection/app/services/weak_topic_service.py
@@ -1,7 +1,7 @@
-from app.detectors.weak_topic_detector import WeakTopicDetector
-from app.models.quiz_result import QuizResult
-from app.utils.data_loader import load_json_data
-from app.config import WEAK_TOPIC_THRESHOLD, MIN_TOPIC_ATTEMPTS
+from weak_topic_detection.app.detectors.weak_topic_detector import WeakTopicDetector
+from weak_topic_detection.app.models.quiz_result import QuizResult
+from weak_topic_detection.app.utils.data_loader import load_json_data
+from weak_topic_detection.app.config import WEAK_TOPIC_THRESHOLD, MIN_TOPIC_ATTEMPTS
 
 
 class WeakTopicService:
@@ -34,4 +34,4 @@ def get_weak_topics(self) -> list[dict]:
 
         results = self.load_results()
 
-        return self.detector.detect(results)
\ No newline at end of file
+        return self.detector.detect(results)
diff --git a/ai-ml/weak_topic_detection/app/validators/quiz_result_validator.py b/ai-ml/weak_topic_detection/app/validators/quiz_result_validator.py
index fb3d48f..e7b1fc4 100644
--- a/ai-ml/weak_topic_detection/app/validators/quiz_result_validator.py
+++ b/ai-ml/weak_topic_detection/app/validators/quiz_result_validator.py
@@ -1,4 +1,4 @@
-from app.models.quiz_result import QuizResult
+from weak_topic_detection.app.models.quiz_result import QuizResult
 
 
 class QuizResultValidator:
@@ -33,4 +33,4 @@ def validate(cls, result: QuizResult) -> bool:
         if not result.date_taken:
             return False
 
-        return True
\ No newline at end of file
+        return True