The architecture has been updated

hermes_code/tools/openrouter_client.py

@@ -0,0 +1,33 @@
+"""Shared OpenRouter API client for Hermes tools.
+
+Provides a single lazy-initialized AsyncOpenAI client that all tool modules
+can share.  Routes through the centralized provider router in
+agent/auxiliary_client.py so auth, headers, and API format are handled
+consistently.
+"""
+
+import os
+
+_client = None
+
+
+def get_async_client():
+    """Return a shared async OpenAI-compatible client for OpenRouter.
+
+    The client is created lazily on first call and reused thereafter.
+    Uses the centralized provider router for auth and client construction.
+    Raises ValueError if OPENROUTER_API_KEY is not set.
+    """
+    global _client
+    if _client is None:
+        from agent.auxiliary_client import resolve_provider_client
+        client, _model = resolve_provider_client("openrouter", async_mode=True)
+        if client is None:
+            raise ValueError("OPENROUTER_API_KEY environment variable not set")
+        _client = client
+    return _client
+
+
+def check_api_key() -> bool:
+    """Check whether the OpenRouter API key is present."""
+    return bool(os.getenv("OPENROUTER_API_KEY"))