diff --git a/backend/app/main.py b/backend/app/main.py
index 7894554..ce8aca0 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -27,6 +27,8 @@ from .db import (
     save_weekly_report, get_weekly_report_list, get_weekly_report,
     # Phase 2: 개인 패턴 분석
     get_all_recommendation_numbers,
+    # Phase 3: 전략 관련
+    get_strategy_performance as db_get_strategy_performance,
 )
 from .recommender import recommend_numbers, recommend_with_heatmap
 from .collector import sync_latest, sync_ensure_all
@@ -34,6 +36,11 @@ from .generator import run_simulation, generate_smart_recommendations
 from .checker import check_results_for_draw
 from .utils import calc_metrics, calc_recent_overlap
 from .analyzer import get_statistical_report, generate_weekly_report, analyze_personal_patterns, generate_combined_recommendation
+from .purchase_manager import check_purchases_for_draw
+from .strategy_evolver import (
+    get_weights_with_trend, recalculate_weights,
+    generate_smart_recommendation,
+)
 
 app = FastAPI()
 scheduler = BackgroundScheduler(timezone=os.getenv("TZ", "Asia/Seoul"))
@@ -257,6 +264,10 @@ class PurchaseCreate(BaseModel):
     sets: int = 1
     prize: int = 0
     note: str = ""
+    numbers: List[List[int]] = []
+    is_real: bool = True
+    source_strategy: str = "manual"
+    source_detail: dict = {}
 
 
 class PurchaseUpdate(BaseModel):
@@ -265,6 +276,9 @@ class PurchaseUpdate(BaseModel):
     sets: Optional[int] = None
     prize: Optional[int] = None
     note: Optional[str] = None
+    numbers: Optional[List[List[int]]] = None
+    is_real: Optional[bool] = None
+    source_strategy: Optional[str] = None
 
 
 @app.get("/api/lotto/purchase/stats")
@@ -274,15 +288,28 @@ def api_purchase_stats():
 
 
 @app.get("/api/lotto/purchase")
-def api_purchase_list(draw_no: Optional[int] = None, days: Optional[int] = None):
-    """구매 이력 조회 (draw_no, days 필터 선택)"""
-    return {"records": get_purchases(draw_no=draw_no, days=days)}
+def api_purchase_list(draw_no: Optional[int] = None, days: Optional[int] = None,
+                      is_real: Optional[bool] = None, strategy: Optional[str] = None):
+    """구매 이력 조회 (필터: draw_no, days, is_real, strategy)"""
+    return {"records": get_purchases(draw_no=draw_no, days=days, is_real=is_real, strategy=strategy)}
 
 
 @app.post("/api/lotto/purchase", status_code=201)
 def api_purchase_create(body: PurchaseCreate):
-    """구매 이력 추가"""
-    return add_purchase(body.draw_no, body.amount, body.sets, body.prize, body.note)
+    """구매 이력 추가 (실제/가상)"""
+    sets = body.sets if body.sets > 0 else max(len(body.numbers), 1)
+    amount = body.amount if body.amount > 0 else sets * 1000
+    return add_purchase(
+        draw_no=body.draw_no,
+        amount=amount,
+        sets=sets,
+        prize=body.prize,
+        note=body.note,
+        numbers=body.numbers,
+        is_real=body.is_real,
+        source_strategy=body.source_strategy,
+        source_detail=body.source_detail,
+    )
 
 
 @app.put("/api/lotto/purchase/{purchase_id}")
@@ -302,6 +329,40 @@ def api_purchase_delete(purchase_id: int):
     return {"ok": True}
 
 
+# ── 전략 진화 API ──────────────────────────────────────────────────────────
+
+@app.get("/api/lotto/strategy/weights")
+def api_strategy_weights():
+    """현재 전략별 가중치 + 성과 요약 + trend"""
+    return get_weights_with_trend()
+
+
+@app.get("/api/lotto/strategy/performance")
+def api_strategy_performance(strategy: Optional[str] = None, days: Optional[int] = None):
+    """전략별 회차 성과 이력 (차트용)"""
+    rows = db_get_strategy_performance(strategy=strategy, days=days)
+    return {"records": rows}
+
+
+@app.post("/api/lotto/strategy/evolve")
+def api_strategy_evolve():
+    """수동 가중치 재계산 트리거"""
+    new_weights = recalculate_weights()
+    return {"ok": True, "weights": new_weights}
+
+
+# ── 스마트 추천 API ────────────────────────────────────────────────────────
+
+@app.get("/api/lotto/recommend/smart")
+def api_recommend_smart(sets: int = 5):
+    """전략 가중치 기반 메타 전략 추천"""
+    sets = max(1, min(sets, 10))
+    result = generate_smart_recommendation(sets=sets)
+    if "error" in result:
+        raise HTTPException(status_code=500, detail=result["error"])
+    return result
+
+
 # ── 통계 분석 리포트 ────────────────────────────────────────────────────────
 @app.get("/api/lotto/analysis")
 def api_analysis():