feat(provider): 新增 OpenRouter 平台适配器 - GET /api/v1/credits，Bearer 认证 - 余额 = data.total_credits - data.total_usage（剩余可用） - 重启后自动同步为平台记录

app/providers/__init__.py

@@ -4,9 +4,11 @@ from __future__ import annotations
 
 from app.providers.base import BalanceProvider
 from app.providers.deepseek import DeepSeekProvider
+from app.providers.openrouter import OpenRouterProvider
 
 PROVIDERS: dict[str, type[BalanceProvider]] = {
     "deepseek": DeepSeekProvider,
+    "openrouter": OpenRouterProvider,
 }
 
 

app/providers/openrouter.py

@@ -0,0 +1,29 @@
+"""OpenRouter 余额。
+
+接口：GET https://openrouter.ai/api/v1/credits
+响应：{"data": {"total_credits": 100.5, "total_usage": 25.75}}
+余额取剩余可用：total_credits - total_usage
+"""
+
+from __future__ import annotations
+
+from app.expr import evaluate_balance
+from app.providers.base import BalanceProvider
+
+
+class OpenRouterProvider(BalanceProvider):
+    id = "openrouter"
+    name = "OpenRouter"
+    currency = "USD"
+    icon = "OpenRouter"
+    description = "OpenRouter 余额（GET /api/v1/credits，Bearer 认证，剩余 = total_credits - total_usage）"
+
+    def build_request(self, api_key: str) -> tuple[str, dict, str | None]:
+        return (
+            "https://openrouter.ai/api/v1/credits",
+            {"Authorization": f"Bearer {api_key}"},
+            None,
+        )
+
+    def extract_balance(self, data: object) -> float:
+        return evaluate_balance(data, "data.total_credits - data.total_usage")