first commit

app/services/model_service.py

@@ -0,0 +1,16 @@
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models import ModelPricing
+
+
+class ModelService:
+
+    @staticmethod
+    async def list_models(db: AsyncSession) -> list:
+        result = await db.execute(
+            select(ModelPricing)
+            .where(ModelPricing.status == "available")
+            .order_by(ModelPricing.provider, ModelPricing.model_name)
+        )
+        return result.scalars().all()