diff --git a/agent-office/app/youtube_researcher.py b/agent-office/app/youtube_researcher.py
new file mode 100644
index 0000000..1cf8639
--- /dev/null
+++ b/agent-office/app/youtube_researcher.py
@@ -0,0 +1,142 @@
+import os
+import re
+import asyncio
+from typing import List, Dict, Any
+
+import httpx
+
+YOUTUBE_DATA_API_KEY = os.getenv("YOUTUBE_DATA_API_KEY", "")
+MUSIC_LAB_URL        = os.getenv("MUSIC_LAB_URL", "http://music-lab:8000")
+TARGET_COUNTRIES     = ["BR", "ID", "MX", "US", "KR"]
+TREND_KEYWORDS       = ["lofi music", "phonk", "ambient music", "chill beats", "study music"]
+YOUTUBE_MUSIC_CAT    = "10"
+
+GENRE_TAGS = {
+    "lo-fi":   ["lofi", "lo-fi", "lo fi", "chill", "study"],
+    "phonk":   ["phonk", "drift", "memphis"],
+    "ambient": ["ambient", "relaxing", "meditation"],
+    "pop":     ["pop", "kpop", "k-pop"],
+    "funk":    ["funk", "baile funk"],
+    "latin":   ["latin", "reggaeton", "sertanejo"],
+}
+
+
+def _tags_to_genre(tags: list) -> str:
+    joined = " ".join(t.lower() for t in tags)
+    for genre, kws in GENRE_TAGS.items():
+        if any(kw in joined for kw in kws):
+            return genre
+    return "general"
+
+
+async def fetch_youtube_trending(country: str, max_results: int = 50) -> List[Dict[str, Any]]:
+    """YouTube Data API v3 — 국가별 트렌딩 음악 영상 (categoryId=10)."""
+    if not YOUTUBE_DATA_API_KEY:
+        return []
+    async with httpx.AsyncClient(timeout=10.0) as client:
+        try:
+            resp = await client.get(
+                "https://www.googleapis.com/youtube/v3/videos",
+                params={
+                    "part":            "snippet,statistics",
+                    "chart":           "mostPopular",
+                    "regionCode":      country,
+                    "videoCategoryId": YOUTUBE_MUSIC_CAT,
+                    "maxResults":      max_results,
+                    "key":             YOUTUBE_DATA_API_KEY,
+                },
+            )
+            if resp.status_code != 200:
+                return []
+            items = resp.json().get("items", [])
+        except Exception:
+            return []
+
+    results = []
+    for i, item in enumerate(items):
+        snippet = item.get("snippet", {})
+        stats   = item.get("statistics", {})
+        genre   = _tags_to_genre(snippet.get("tags") or [])
+        results.append({
+            "source":  "youtube",
+            "country": country,
+            "genre":   genre,
+            "keyword": snippet.get("title", "")[:100],
+            "score":   round(1.0 - i / max_results, 3),
+            "rank":    i + 1,
+            "metadata": {
+                "video_id":   item["id"],
+                "view_count": int(stats.get("viewCount", 0)),
+                "channel":    snippet.get("channelTitle", ""),
+            },
+        })
+    return results
+
+
+async def fetch_google_trends(keywords: List[str], countries: List[str]) -> List[Dict[str, Any]]:
+    """pytrends — 키워드별 Google 관심도 (sync → threadpool)."""
+    try:
+        from pytrends.request import TrendReq
+    except ImportError:
+        return []
+
+    def _sync_fetch(kw: str) -> List[Dict[str, Any]]:
+        try:
+            pt = TrendReq(hl="en-US", tz=0)
+            pt.build_payload([kw], timeframe="now 7-d")
+            df = pt.interest_over_time()
+            if df.empty or kw not in df.columns:
+                return []
+            score = round(float(df[kw].mean()) / 100.0, 3)
+            return [
+                {"source": "google_trends", "country": c, "genre": "",
+                 "keyword": kw, "score": score, "rank": None, "metadata": {}}
+                for c in countries
+            ]
+        except Exception:
+            return []
+
+    loop = asyncio.get_event_loop()
+    results = []
+    for kw in keywords[:5]:
+        rows = await loop.run_in_executor(None, _sync_fetch, kw)
+        results.extend(rows)
+        await asyncio.sleep(1.0)
+    return results
+
+
+async def fetch_billboard_top20() -> List[Dict[str, Any]]:
+    """Billboard Hot 100 스크래핑 — 상위 20위."""
+    async with httpx.AsyncClient(
+        timeout=10.0,
+        headers={"User-Agent": "Mozilla/5.0 (compatible; music-research-bot/1.0)"},
+        follow_redirects=True,
+    ) as client:
+        try:
+            resp = await client.get("https://www.billboard.com/charts/hot-100/")
+            if resp.status_code != 200:
+                return []
+            titles = re.findall(
+                r'class="c-title[^"]*"[^>]*>\s*([^<\n]{3,80})\s*<', resp.text
+            )[:20]
+            return [
+                {"source": "billboard", "country": "US", "genre": "pop",
+                 "keyword": t.strip(), "score": round(1.0 - i / 20, 3),
+                 "rank": i + 1, "metadata": {}}
+                for i, t in enumerate(titles) if t.strip()
+            ]
+        except Exception:
+            return []
+
+
+async def push_to_music_lab(trends: List[Dict[str, Any]], report_date: str) -> bool:
+    """수집한 트렌드를 music-lab /api/music/market/ingest로 push."""
+    async with httpx.AsyncClient(timeout=15.0) as client:
+        try:
+            resp = await client.post(
+                f"{MUSIC_LAB_URL}/api/music/market/ingest",
+                json={"trends": trends, "report_date": report_date},
+            )
+            return resp.status_code == 200
+        except Exception:
+            return False
diff --git a/agent-office/requirements.txt b/agent-office/requirements.txt
index 0aed057..c5497a7 100644
--- a/agent-office/requirements.txt
+++ b/agent-office/requirements.txt
@@ -3,3 +3,5 @@ uvicorn[standard]==0.30.6
 apscheduler==3.10.4
 websockets>=12.0
 httpx>=0.27
+google-api-python-client>=2.100.0
+pytrends>=4.9.2