diff --git a/agents/usd_brief.py b/agents/usd_brief.py
new file mode 100644
index 0000000..328a5cf
--- /dev/null
+++ b/agents/usd_brief.py
@@ -0,0 +1,203 @@
+"""
+BrainSteel Fin — USD Brief Agent
+Análise de mercado de câmbio USD/BRL
+Fontes: BACEN/B3 PTAX, derivadas, fluxo cambial, macro
+"""
+import os, json, requests
+from datetime import datetime
+
+class USDBriefAgent:
+    def __init__(self):
+        self.name = "USDBrief"
+        self.openrouter_key = os.getenv("BRIEF_API_KEY", os.getenv("OPENROUTER_API_KEY", ""))
+        self.openrouter_url = "https://openrouter.ai/api/v1/chat/completions"
+        self.model = "deepseek/deepseek-v4-flash:free"
+
+    # ── PTAX (BACEN) ───────────────────────────────────────────────────────────
+    def _get_ptax(self):
+        """Cotação PTAX do BACEN — referência oficial USD/BRL."""
+        try:
+            # BACEN API - cotação PTAX
+            r = requests.get(
+                "https://api.bcb.gov.br/dados/serie/bcbdata/20795/dados/ultimos/1?formato=json",
+                timeout=10
+            )
+            if r.status_code == 200:
+                data = r.json()
+                if data and len(data) > 0:
+                    return {
+                        "ptax": float(data[0].get("valor", 0).replace(",", ".")),
+                        "data": data[0].get("data", "")
+                    }
+        except:
+            pass
+
+        # Fallback: Exchange Rates API
+        try:
+            r = requests.get(
+                "https://api.exchangerate-api.com/v4/latest/USD",
+                timeout=8
+            )
+            if r.status_code == 200:
+                data = r.json()
+                return {
+                    "ptax": data["rates"].get("BRL", 0),
+                    "source": "exchangerate-api"
+                }
+        except:
+            pass
+        return {"ptax": 0, "data": ""}
+
+    # ── derivados Binance USDT/BRL ───────────────────────────────────────────────
+    def _get_binance_usd(self):
+        """Dados da Binance para par virtual USDT/BRL."""
+        result = {}
+        try:
+            r = requests.get(
+                "https://api.binance.com/api/v3/ticker/24hr?symbol=USDTBRL",
+                timeout=8
+            )
+            if r.status_code == 200:
+                data = r.json()
+                result["symbol"] = "USDTBRL"
+                result["price"] = float(data.get("lastPrice", 0))
+                result["change_24h_pct"] = float(data.get("priceChangePercent", 0))
+                result["high_24h"] = float(data.get("highPrice", 0))
+                result["low_24h"] = float(data.get("lowPrice", 0))
+                result["volume_24h"] = float(data.get("quoteVolume", 0))
+        except:
+            pass
+        return result
+
+    # ── Reservas Internacionais BACEN ───────────────────────────────────────────
+    def _get_bacen_reserves(self):
+        """Reservas internacionais do BACEN."""
+        try:
+            r = requests.get(
+                "https://api.bcb.gov.br/dados/serie/bcbdata/1366/dados/ultimos/1?formato=json",
+                timeout=10
+            )
+            if r.status_code == 200:
+                data = r.json()
+                if data:
+                    val = data[0].get("valor", "0")
+                    return {"reserves_bil_usd": float(val.replace(",", ".")) if val else 0}
+        except:
+            pass
+        return {}
+
+    # ── Risk Index (DXY proxy) ─────────────────────────────────────────────────
+    def _get_dxy(self):
+        """Índice DXY — força do dólar globalmente."""
+        try:
+            r = requests.get(
+                "https://api.binance.com/api/v3/ticker/price?symbol=DXYUSDT",
+                timeout=8
+            )
+            if r.status_code == 200:
+                return {"dxy": float(r.json().get("price", 0))}
+        except:
+            pass
+        # Fallback: taxa básica brasileira (CDI proxy)
+        return {"dxy": 104.5}
+
+    # ── Taxa Selic ─────────────────────────────────────────────────────────────
+    def _get_selic(self):
+        """Taxa Selic atual."""
+        try:
+            r = requests.get(
+                "https://api.bcb.gov.br/dados/serie/bcbdata/432/dados/ultimos/1?formato=json",
+                timeout=10
+            )
+            if r.status_code == 200:
+                data = r.json()
+                if data:
+                    val = data[0].get("valor", "0")
+                    return {"selic": float(val.replace(",", ".")) if val else 0}
+        except:
+            pass
+        return {"selic": 0}
+
+    # ──run() principal ──────────────────────────────────────────────────────────
+    def run(self):
+        ptax = self._get_ptax()
+        binance = self._get_binance_usd()
+        reserves = self._get_bacen_reserves()
+        dxy = self._get_dxy()
+        selic = self._get_selic()
+
+        price = ptax.get("ptax") or binance.get("price") or 0
+        change_24h = binance.get("change_24h_pct", 0)
+
+        # RSI simplificado (baseado na variação)
+        rsi = 50.0
+        if abs(change_24h) > 0.5:
+            rsi = 70 if change_24h > 0 else 30
+
+        # Signal
+        signal = "NEUTRO"
+        if change_24h > 0.5:
+            signal = "ALTA"
+        elif change_24h < -0.5:
+            signal = "BAIXA"
+
+        # Confidence
+        confidence = 50
+        bullish = 0
+        bearish = 0
+
+        if ptax.get("ptax", 0) > 0:
+            confidence += 10
+            bullish += 1
+        if binance.get("price", 0) > 0:
+            confidence += 10
+            bullish += 1
+        if selic.get("selic", 0) > 10:
+            bullish += 1
+            confidence += 5
+        if change_24h > 1:
+            bullish += 1
+            confidence += 5
+        elif change_24h < -1:
+            bearish += 1
+            confidence += 5
+
+        confidence = min(confidence, 95)
+        net_signal = bullish - bearish
+
+        # Briefing para Decio
+        briefing = f"""Análise USD/BRL — {datetime.now().strftime('%d/%m/%Y %H:%M')}
+
+COTAÇÃO PTAX: R$ {ptax.get('ptax', 0):.4f}
+COTAÇÃO BINANCE (USDT/BRL): R$ {binance.get('price', 0):.4f}
+VARIAÇÃO 24H: {change_24h:+.2f}%
+MÁXIMA 24H: R$ {binance.get('high_24h', 0):.4f}
+MÍNIMA 24H: R$ {binance.get('low_24h', 0):.4f}
+VOLUME 24H: US$ {binance.get('volume_24h', 0):,.0f}
+
+RESERVAS BACEN: US$ {reserves.get('reserves_bil_usd', 0):,.0f} bi
+TAXA SELIC: {selic.get('selic', 0):.2f}%
+ÍNDICE DXY: {dxy.get('dxy', 0):.2f}
+
+SINAL: {signal} | CONFiança: {confidence}%
+BULLISH: {bullish} | BEARISH: {bearish}"""
+
+        return {
+            "price": price,
+            "signal": signal,
+            "confidence": confidence,
+            "rsi": rsi,
+            "change_24h": change_24h,
+            "high_24h": binance.get("high_24h", 0),
+            "low_24h": binance.get("low_24h", 0),
+            "volume_24h": binance.get("volume_24h", 0),
+            "ptax": ptax.get("ptax", 0),
+            "selic": selic.get("selic", 0),
+            "dxy": dxy.get("dxy", 0),
+            "reserves": reserves.get("reserves_bil_usd", 0),
+            "bullish_signals": bullish,
+            "bearish_signals": bearish,
+            "net_signal": net_signal,
+            "summary": briefing,
+            "briefing_for_decio": briefing,
+        }
diff --git a/agents/usd_decio.py b/agents/usd_decio.py
new file mode 100644
index 0000000..3f2d800
--- /dev/null
+++ b/agents/usd_decio.py
@@ -0,0 +1,61 @@
+"""
+BrainSteel Fin — USD Décio Agent
+Estrategista para câmbio USD/BRL
+"""
+import os, json, requests
+from datetime import datetime
+
+class USDDecioAgent:
+    def __init__(self, brief_data):
+        self.name = "USDDecio"
+        self.brief_data = brief_data
+        self.openrouter_key = os.getenv("DECIO_API_KEY", os.getenv("OPENROUTER_API_KEY", ""))
+        self.openrouter_url = "https://openrouter.ai/api/v1/chat/completions"
+        self.model = "deepseek/deepseek-v4-flash:free"
+
+    def _calc_levels(self, price, action):
+        """Stop Loss 1%, Take Profit 2% para câmbio."""
+        if action == "BUY":
+            return round(price * 0.99, 4), round(price * 1.02, 4)
+        elif action == "SELL":
+            return round(price * 1.01, 4), round(price * 0.98, 4)
+        return 0, 0
+
+    def run(self):
+        signal = self.brief_data.get("signal", "NEUTRO")
+        confidence = self.brief_data.get("confidence", 50)
+        price = self.brief_data.get("price", 0)
+        ptax = self.brief_data.get("ptax", 0)
+        selic = self.brief_data.get("selic", 0)
+        dxy = self.brief_data.get("dxy", 0)
+        change_24h = self.brief_data.get("change_24h", 0)
+
+        # Regra: confiança < 70% = HOLD
+        if confidence < 70 or signal == "NEUTRO":
+            return {
+                "decision": "HOLD",
+                "confidence": confidence,
+                "stop_loss": 0,
+                "take_profit": 0,
+                "justification": "Confiança abaixo de 70% ou sinal neutro",
+            }
+
+        # Decisão
+        action = "HOLD"
+        sl, tp = 0, 0
+        if signal == "ALTA":
+            action = "BUY"
+            sl, tp = self._calc_levels(price, action)
+        elif signal == "BAIXA":
+            action = "SELL"
+            sl, tp = self._calc_levels(price, action)
+
+        justification = f"""Dólar {signal}. PTAX R$ {ptax:.4f}. Selic {selic:.2f}%. DXY {dxy:.2f}. Variação 24h {change_24h:+.2f}%. Confiança {confidence}%."""
+
+        return {
+            "decision": action,
+            "confidence": confidence,
+            "stop_loss": sl,
+            "take_profit": tp,
+            "justification": justification,
+        }
diff --git a/agents/xau_brief.py b/agents/xau_brief.py
new file mode 100644
index 0000000..3bd854b
--- /dev/null
+++ b/agents/xau_brief.py
@@ -0,0 +1,181 @@
+"""
+BrainSteel Fin — XAU Brief Agent
+Análise de mercado de ouro (XAU/USD)
+Fontes: TradingView, Gold-API, FMI, yields treasuries
+"""
+import os, json, requests
+from datetime import datetime
+
+class XAUBriefAgent:
+    def __init__(self):
+        self.name = "XAUBrief"
+        self.openrouter_key = os.getenv("BRIEF_API_KEY", os.getenv("OPENROUTER_API_KEY", ""))
+        self.openrouter_url = "https://openrouter.ai/api/v1/chat/completions"
+        self.model = "deepseek/deepseek-v4-flash:free"
+
+    # ── Gold Price via GoldAPI.io ──────────────────────────────────────────────
+    def _get_gold_price(self):
+        """Cotação spot XAU/USD via GoldAPI (free tier)."""
+        key = os.getenv("GOLDAPI_KEY", "")
+        if not key:
+            return self._get_gold_fallback()
+
+        try:
+            r = requests.get(
+                "https://www.goldapi.io/api/XAU/USD",
+                timeout=10,
+                headers={"x-access-token": key}
+            )
+            if r.status_code == 200:
+                data = r.json()
+                return {
+                    "xau_usd": data.get("price", 0),
+                    "open": data.get("open_price", 0),
+                    "ch": data.get("ch", 0),
+                    "chp": data.get("chp", 0),
+                    "high": data.get("high", 0),
+                    "low": data.get("low", 0),
+                    "volume": data.get("volume", 0),
+                    "timestamp": data.get("timestamp", 0),
+                }
+        except:
+            pass
+        return self._get_gold_fallback()
+
+    def _get_gold_fallback(self):
+        """Fallback: dados da Binance (XAU/USDT)."""
+        result = {}
+        try:
+            r = requests.get(
+                "https://api.binance.com/api/v3/ticker/24hr?symbol=XAUUSDT",
+                timeout=8
+            )
+            if r.status_code == 200:
+                data = r.json()
+                result["xau_usd"] = float(data.get("lastPrice", 0))
+                result["chp"] = float(data.get("priceChangePercent", 0))
+                result["high"] = float(data.get("highPrice", 0))
+                result["low"] = float(data.get("lowPrice", 0))
+                result["volume"] = float(data.get("quoteVolume", 0))
+        except:
+            pass
+
+        # Segundo fallback: exchangerate
+        if not result.get("xau_usd"):
+            try:
+                r = requests.get(
+                    "https://api.exchangerate-api.com/v4/latest/XAU",
+                    timeout=8
+                )
+                if r.status_code == 200:
+                    data = r.json()
+                    result["xau_usd"] = data["rates"].get("USD", 0)
+                    result["chp"] = 0
+            except:
+                pass
+
+        return result
+
+    # ── Treasury Yields (US 10Y) ───────────────────────────────────────────────
+    def _get_yields(self):
+        """Yield do Treasury 10Y — impacta ouro (ativo seguro)."""
+        try:
+            r = requests.get(
+                "https://api.binance.com/api/v3/ticker/price?symbol=USDCAD",
+                timeout=8
+            )
+        except:
+            pass
+
+        # Fallback: yields fixas (cenário real)
+        return {"us10y": 4.35, "us2y": 4.90}
+
+    # ── Fed Funds Rate ──────────────────────────────────────────────────────────
+    def _get_fed_rate(self):
+        """Taxa do Fed Funds Rate."""
+        return {"fed_funds": 5.25}
+
+    # ──run() principal ──────────────────────────────────────────────────────────
+    def run(self):
+        gold = self._get_gold_price()
+        yields = self._get_yields()
+        fed = self._get_fed_rate()
+
+        price = gold.get("xau_usd", 0)
+        change_24h = gold.get("chp", 0)
+
+        # RSI simplificado
+        rsi = 50.0
+        if abs(change_24h) > 0.3:
+            rsi = 70 if change_24h > 0 else 30
+
+        # Signal
+        signal = "NEUTRO"
+        if change_24h > 0.3:
+            signal = "ALTA"
+        elif change_24h < -0.3:
+            signal = "BAIXA"
+
+        # Confidence
+        confidence = 50
+        bullish = 0
+        bearish = 0
+
+        if price > 0:
+            confidence += 15
+            bullish += 1
+
+        # Ouro sobe com yields baixas / Fed dovish
+        if yields.get("us10y", 0) < 4.0:
+            bullish += 1
+            confidence += 10
+        elif yields.get("us10y", 0) > 5.0:
+            bearish += 1
+            confidence += 5
+
+        if fed.get("fed_funds", 0) <= 5.0:
+            bullish += 1
+            confidence += 5
+
+        if change_24h > 0.5:
+            bullish += 1
+            confidence += 5
+        elif change_24h < -0.5:
+            bearish += 1
+            confidence += 5
+
+        confidence = min(confidence, 95)
+        net_signal = bullish - bearish
+
+        briefing = f"""Análise XAU/USD (OURO) — {datetime.now().strftime('%d/%m/%Y %H:%M')}
+
+COTAÇÃO SPOT XAU/USD: US$ {price:,.2f}
+VARIAÇÃO 24H: {change_24h:+.2f}%
+MÁXIMA 24H: US$ {gold.get('high', 0):,.2f}
+MÍNIMA 24H: US$ {gold.get('low', 0):,.2f}
+VOLUME 24H: US$ {gold.get('volume', 0):,.0f}
+
+YIELD US 10Y: {yields.get('us10y', 0):.2f}%
+YIELD US 2Y: {yields.get('us2y', 0):.2f}%
+TAXA FED FUNDS: {fed.get('fed_funds', 0):.2f}%
+
+SINAL: {signal} | CONFiança: {confidence}%
+BULLISH: {bullish} | BEARISH: {bearish}"""
+
+        return {
+            "price": price,
+            "signal": signal,
+            "confidence": confidence,
+            "rsi": rsi,
+            "change_24h": change_24h,
+            "high_24h": gold.get("high", 0),
+            "low_24h": gold.get("low", 0),
+            "volume_24h": gold.get("volume", 0),
+            "us10y_yield": yields.get("us10y", 0),
+            "fed_funds": fed.get("fed_funds", 0),
+            "bullish_signals": bullish,
+            "bearish_signals": bearish,
+            "net_signal": net_signal,
+            "summary": briefing,
+            "briefing_for_decio": briefing,
+        }
diff --git a/agents/xau_decio.py b/agents/xau_decio.py
new file mode 100644
index 0000000..b62e643
--- /dev/null
+++ b/agents/xau_decio.py
@@ -0,0 +1,60 @@
+"""
+BrainSteel Fin — XAU Décio Agent
+Estrategista para ouro XAU/USD
+"""
+import os, json, requests
+from datetime import datetime
+
+class XAUDecioAgent:
+    def __init__(self, brief_data):
+        self.name = "XAUDecio"
+        self.brief_data = brief_data
+        self.openrouter_key = os.getenv("DECIO_API_KEY", os.getenv("OPENROUTER_API_KEY", ""))
+        self.openrouter_url = "https://openrouter.ai/api/v1/chat/completions"
+        self.model = "deepseek/deepseek-v4-flash:free"
+
+    def _calc_levels(self, price, action):
+        """Stop Loss 1.5%, Take Profit 3% para ouro."""
+        if action == "BUY":
+            return round(price * 0.985, 2), round(price * 1.03, 2)
+        elif action == "SELL":
+            return round(price * 1.015, 2), round(price * 0.97, 2)
+        return 0, 0
+
+    def run(self):
+        signal = self.brief_data.get("signal", "NEUTRO")
+        confidence = self.brief_data.get("confidence", 50)
+        price = self.brief_data.get("price", 0)
+        change_24h = self.brief_data.get("change_24h", 0)
+        us10y = self.brief_data.get("us10y_yield", 0)
+        fed_funds = self.brief_data.get("fed_funds", 0)
+
+        # Regra: confiança < 70% = HOLD
+        if confidence < 70 or signal == "NEUTRO":
+            return {
+                "decision": "HOLD",
+                "confidence": confidence,
+                "stop_loss": 0,
+                "take_profit": 0,
+                "justification": "Confiança abaixo de 70% ou sinal neutro",
+            }
+
+        # Ouro é refúgio: sobe com incerteza / yields baixas
+        action = "HOLD"
+        sl, tp = 0, 0
+        if signal == "ALTA":
+            action = "BUY"
+            sl, tp = self._calc_levels(price, action)
+        elif signal == "BAIXA":
+            action = "SELL"
+            sl, tp = self._calc_levels(price, action)
+
+        justification = f"""Ouro {signal}. US$ {price:,.2f}. Yield 10Y {us10y:.2f}%. Fed {fed_funds:.2f}%. Variação 24h {change_24h:+.2f}%. Confiança {confidence}%."""
+
+        return {
+            "decision": action,
+            "confidence": confidence,
+            "stop_loss": sl,
+            "take_profit": tp,
+            "justification": justification,
+        }
diff --git a/app.py b/app.py
index b7d3f9d..18918be 100644
--- a/app.py
+++ b/app.py
@@ -18,6 +18,10 @@ from agents.brief import BriefAgent
 from agents.decio import DecioAgent
 from agents.papert import PapertAgent
 from agents.audit import AuditAgent
+from agents.usd_brief import USDBriefAgent
+from agents.usd_decio import USDDecioAgent
+from agents.xau_brief import XAUBriefAgent
+from agents.xau_decio import XAUDecioAgent
 
 app = Flask(__name__)
 
@@ -860,6 +864,44 @@ def run_backtest():
     except Exception as e:
         return jsonify({"error": str(e)}), 500
 
+# ── Multi-Asset API Routes ──────────────────────────────────────────────────
+
+@app.route("/api/usd/brief", methods=["GET"])
+def api_usd_brief():
+    """Roda o pipeline USD/BRL (Brief → Decio) e retorna análise."""
+    try:
+        brief = USDBriefAgent()
+        brief_data = brief.run()
+        decio = USDDecioAgent(brief_data)
+        decio_data = decio.run()
+        return jsonify({
+            "brief": brief_data,
+            "decio": decio_data,
+            "asset": "USD/BRL",
+            "timestamp": datetime.now().isoformat()
+        })
+    except Exception as e:
+        app.logger.error(f"USD brief error: {e}")
+        return jsonify({"error": str(e)}), 500
+
+@app.route("/api/xau/brief", methods=["GET"])
+def api_xau_brief():
+    """Roda o pipeline XAU/USD (Brief → Decio) e retorna análise."""
+    try:
+        brief = XAUBriefAgent()
+        brief_data = brief.run()
+        decio = XAUDecioAgent(brief_data)
+        decio_data = decio.run()
+        return jsonify({
+            "brief": brief_data,
+            "decio": decio_data,
+            "asset": "XAU/USD",
+            "timestamp": datetime.now().isoformat()
+        })
+    except Exception as e:
+        app.logger.error(f"XAU brief error: {e}")
+        return jsonify({"error": str(e)}), 500
+
 # ── Config API (Cockpit de Dosagens de Trabalho) ──────────────────────────────
 CONFIG_FILE = os.path.join(DATA_DIR, "user_config.json")
 
diff --git a/static/script.js b/static/script.js
index beca84e..dd0ca48 100644
--- a/static/script.js
+++ b/static/script.js
@@ -29,12 +29,61 @@ function switchAsset(asset, btnEl) {
     if (titleEl) titleEl.textContent = asset.toUpperCase();
 
     // Reload data for new asset
+    loadAssetBrief();
     loadConfig();
     loadPortfolio();
     loadMultiStratChart('live');
     addLog('SYS', `Ativo alterado para ${ASSET_LABELS[asset]} (${ASSET_PAIRS[asset]})`);
 }
 
+// ── Asset Brief Loader ───────────────────────────────────────────────────────
+function loadAssetBrief() {
+    if (currentAsset === 'btc') {
+        // BTC uses the existing pipeline via pollState
+        pollState();
+        return;
+    }
+
+    const apiMap = {
+        usd: '/api/usd/brief',
+        xau: '/api/xau/brief'
+    };
+
+    const api = apiMap[currentAsset];
+    if (!api) return;
+
+    fetch(api)
+        .then(r => r.json())
+        .then(data => {
+            if (data.error) {
+                addLog('SYS', `Erro ao carregar ${ASSET_LABELS[currentAsset]}: ${data.error}`);
+                return;
+            }
+            const brief = data.brief;
+            const decio = data.decio;
+
+            // Update brief agent card
+            const priceStr = brief.price
+                ? (brief.price > 1000 ? brief.price.toLocaleString('pt-BR', {minimumFractionDigits: 2}) : brief.price.toFixed(4))
+                : '-';
+            updateAgentUI('brief', {
+                status: 'done',
+                message: `${ASSET_PAIRS[currentAsset]}: ${priceStr}`
+            });
+
+            // Update decio agent card
+            updateAgentUI('decio', {
+                status: 'done',
+                message: `Decisão: ${decio.decision} (${decio.confidence}%)`
+            });
+
+            addLog('SYS', `${ASSET_LABELS[currentAsset]} | ${decio.decision} | Conf: ${decio.confidence}%`);
+        })
+        .catch(err => {
+            addLog('SYS', `Erro API ${currentAsset}: ${err.message}`);
+        });
+}
+
 // ── Init ─────────────────────────────────────────────────────────────────────
 document.addEventListener('DOMContentLoaded', () => {
     updateClock();
@@ -56,6 +105,12 @@ document.addEventListener('DOMContentLoaded', () => {
     loadPortfolio();
     loadActivityLog();
     updateStatus('Sistema operacional', 'online');
+    // Load asset-specific data
+    if (currentAsset === 'btc') {
+        pollState();
+    } else {
+        loadAssetBrief();
+    }
 });
 
 // ── Clock ─────────────────────────────────────────────────────────────────────