fix: fallback to messages.create when proxy returns 404 on models endpoint; add version to manifest

custom_components/anthropic_custom/config_flow.py

@@ -102,7 +102,21 @@ async def validate_input(hass: HomeAssistant, data: dict[str, Any]) -> None:
         base_url=data.get(CONF_BASE_URL) or None,
         http_client=get_async_client(hass)
     )
-    await client.models.list(timeout=10.0)
+    # Use a minimal messages call instead of models.list so that
+    # proxies which don't implement GET /v1/models still validate correctly.
+    try:
+        await client.models.list(timeout=10.0)
+    except anthropic.APIStatusError as exc:
+        if exc.status_code == 404:
+            # Proxy does not support models endpoint — validate via a tiny messages call
+            await client.messages.create(
+                model="claude-haiku-4-5",
+                max_tokens=1,
+                messages=[{"role": "user", "content": "hi"}],
+                timeout=10.0,
+            )
+        else:
+            raise
 
 
 async def get_model_list(client: anthropic.AsyncAnthropic) -> list[SelectOptionDict]:

custom_components/anthropic_custom/manifest.json

@@ -1,13 +1,21 @@
 {
   "domain": "anthropic_custom",
   "name": "Anthropic (Custom Base URL)",
-  "after_dependencies": ["assist_pipeline", "intent"],
+  "after_dependencies": [
+    "assist_pipeline",
+    "intent"
+  ],
   "codeowners": [],
   "config_flow": true,
-  "dependencies": ["conversation"],
+  "dependencies": [
+    "conversation"
+  ],
   "documentation": "https://github.com/robot/ha-anthropic-custom",
   "integration_type": "service",
   "iot_class": "cloud_polling",
   "quality_scale": "bronze",
-  "requirements": ["anthropic==0.83.0"]
-}
+  "requirements": [
+    "anthropic==0.83.0"
+  ],
+  "version": "1.0.0"
+}