diff --git a/app/api/v1/compare.py b/app/api/v1/compare.py
index 42bcddd..93279b3 100644
--- a/app/api/v1/compare.py
+++ b/app/api/v1/compare.py
@@ -102,6 +102,17 @@ async def intent_step(request: Request) -> dict[str, Any]:
     return await _passthrough(request, "/api/intent/step")
 
 
+@router.post(
+    "/intent/precoupon/step",
+    summary="外卖比价 Phase 0 意图识别前先用券 (透传到 pricebot, 仅美团源)",
+)
+async def intent_precoupon_step(request: Request) -> dict[str, Any]:
+    # 美团源平台『意图识别前先用券』多帧循环: 客户端在调 /intent/recognize 之前先循环
+    # 调本端点到 done(continue=false)。订单页底部有『点击使用X红包』就自动选最大免费券
+    # 用上, 已用券/无券则首帧秒过。与 /intent/step 同属 intent 域, 复用同一透传壳。
+    return await _passthrough(request, "/api/intent/precoupon/step")
+
+
 @router.post("/price/step", summary="外卖比价 Phase 2 步进 (透传到 pricebot)")
 async def price_step(request: Request) -> dict[str, Any]:
     return await _passthrough(request, "/api/price/step")