[BUG] Uninstalled/Reinstalled - Claud can't connect or see HA setup #562
💬 What Went Wrong?I had an issue where Claude was freezing all of a sudden when given prompts that require it to access my HA configuration, so I attempted to uninstall and reinstall everything to start from scratch. Now Claud says HA tools are available in its toolkit, but it cannot actually connect to or see my HA setup without establishing that connection first. Developer settings looks like: 
Token and URL are correct. Here's my MCP server assistant log: 2026-02-01T12:45:01.884Z [Home Assistant] [info] Initializing server... { metadata: undefined } +-----------------------------------------------------------------------------+ [02/01/26 06:45:10] INFO Starting MCP server 'ha-mcp' with server.py:2506 +-----------------------------------------------------------------------------+ [02/01/26 06:47:45] INFO Starting MCP server 'ha-mcp' with server.py:2506 📋 AI-Generated Content / Logs / Config2026-02-01T12:45:01.884Z [Home Assistant] [info] Initializing server... { metadata: undefined }
2026-02-01T12:45:01.902Z [Home Assistant] [info] Using MCP server command: C:\Users\akahn\AppData\Local\Microsoft\WinGet\Packages\astral-sh.uv_Microsoft.Winget.Source_8wekyb3d8bbwe\uvx.exe with args and path: {
metadata: {
args: [ '--refresh', 'ha-mcp@latest', [length]: 2 ],
paths: [
'C:\\Program Files (x86)\\Razer Chroma SDK\\bin',
'C:\\Program Files\\Razer Chroma SDK\\bin',
'C:\\WINDOWS\\system32',
'C:\\WINDOWS',
'C:\\WINDOWS\\System32\\Wbem',
'C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\',
'C:\\WINDOWS\\System32\\OpenSSH\\',
'C:\\Program Files (x86)\\NVIDIA Corporation\\PhysX\\Common',
'C:\\Program Files\\NVIDIA Corporation\\NVIDIA app\\NvDLISR',
'C:\\WINDOWS\\system32\\config\\systemprofile\\AppData\\Local\\Microsoft\\WindowsApps',
'C:\\Program Files (x86)\\Razer\\ChromaBroadcast\\bin',
'C:\\Program Files\\Razer\\ChromaBroadcast\\bin',
'C:\\Users\\akahn\\AppData\\Local\\Microsoft\\WindowsApps',
'',
'%SystemRoot%\\system32',
'%SystemRoot%',
'%SystemRoot%\\System32\\Wbem',
'%SYSTEMROOT%\\System32\\WindowsPowerShell\\v1.0\\',
'%SYSTEMROOT%\\System32\\OpenSSH\\',
'C:\\Users\\akahn\\AppData\\Local\\Microsoft\\WinGet\\Packages\\astral-sh.uv_Microsoft.Winget.Source_8wekyb3d8bbwe',
[length]: 20
]
}
} %o
2026-02-01T12:45:01.911Z [Home Assistant] [info] Server started and connected successfully { metadata: undefined }
2026-02-01T12:45:02.022Z [Home Assistant] [info] Message from client: {"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"claude-ai","version":"0.1.0"}},"jsonrpc":"2.0","id":0} { metadata: undefined }
Downloading pygments (1.2MiB)
Downloading lupa (1.7MiB)
Downloading cryptography (3.3MiB)
Downloading pydantic-core (1.9MiB)
Downloading pywin32 (9.2MiB)
Downloading beartype (1.3MiB)
Downloaded lupa
Downloaded pydantic-core
Downloaded cryptography
Downloaded pygments
Downloaded beartype
Downloaded pywin32
Installed 89 packages in 1.09s
+-----------------------------------------------------------------------------+
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| \u2584\u2580\u2580 \u2584\u2580\u2588 \u2588\u2580\u2580 \u2580\u2588\u2580 \u2588\u2580\u2584\u2580\u2588 \u2588\u2580\u2580 \u2588\u2580\u2588 |
| \u2588\u2580 \u2588\u2580\u2588 \u2584\u2584\u2588 \u2588 \u2588 \u2580 \u2588 \u2588\u2584\u2584 \u2588\u2580\u2580 |
| |
| |
| FastMCP 2.14.4 |
| https://gofastmcp.com |
| |
| \U0001f5a5 Server: ha-mcp |
| \U0001f680 Deploy free: https://fastmcp.cloud |
| |
+-----------------------------------------------------------------------------+
+-----------------------------------------------------------------------------+
| \u2728 FastMCP 3.0 is coming! |
| Pin `fastmcp < 3` in production, then upgrade when you're ready. |
+-----------------------------------------------------------------------------+
[02/01/26 06:45:10] INFO Starting MCP server 'ha-mcp' with server.py:2506
transport 'stdio'
2026-02-01T12:45:10.989Z [Home Assistant] [info] Message from server: {"jsonrpc":"2.0","id":0,"result":{"protocolVersion":"2025-06-18","capabilities":{"experimental":{},"prompts":{"listChanged":false},"resources":{"subscribe":false,"listChanged":false},"tools":{"listChanged":true},"tasks":{"list":{},"cancel":{},"requests":{"tools":{"call":{}},"prompts":{"get":{}},"resources":{"read":{}}}}},"serverInfo":{"name":"ha-mcp","version":"0.1.0","icons":[{"src":"https://raw.githubusercontent.com/homeassistant-ai/ha-mcp/master/packaging/mcpb/icon.svg","mimeType":"image/svg+xml"},{"src":"https://raw.githubusercontent.com/homeassistant-ai/ha-mcp/master/packaging/mcpb/icon-128.png","mimeType":"image/png","sizes":["128x128"]}]}}} { metadata: undefined }
2026-02-01T12:45:10.989Z [Home Assistant] [info] Message from client: {"method":"notifications/initialized","jsonrpc":"2.0"} { metadata: undefined }
2026-02-01T12:45:10.990Z [Home Assistant] [info] Message from client: {"method":"tools/list","params":{},"jsonrpc":"2.0","id":1} { metadata: undefined }
2026-02-01T12:45:10.990Z [Home Assistant] [info] Message from client: {"method":"prompts/list","params":{},"jsonrpc":"2.0","id":2} { metadata: undefined }
2026-02-01T12:45:10.990Z [Home Assistant] [info] Message from client: {"method":"resources/list","params":{},"jsonrpc":"2.0","id":3} { metadata: undefined }
2026-02-01T12:45:10.995Z [Home Assistant] [info] Message from server: {"jsonrpc":"2.0","id":1,"result":{"tools":[{"name":"ha_get_addon","title":"Get Add-ons","description":"Get Home Assistant add-ons - list installed or available from store.\n\nThis tool retrieves add-on information based on the source parameter:\n- source='...[162353 chars truncated]...: false for config-only restore)","type":"boolean"}},"required":["backup_id"],"type":"object"},"outputSchema":{"additionalProperties":true,"type":"object"},"annotations":{"title":"Restore Backup","destructiveHint":true},"_meta":{"_fastmcp":{"tags":[]}}}]}} { metadata: undefined }
2026-02-01T12:45:10.996Z [Home Assistant] [info] Message from server: {"jsonrpc":"2.0","id":2,"result":{"prompts":[]}} { metadata: undefined }
2026-02-01T12:45:10.996Z [Home Assistant] [info] Message from server: {"jsonrpc":"2.0","id":3,"result":{"resources":[]}} { metadata: undefined }
2026-02-01T12:45:42.858Z [Home Assistant] [info] Client transport closed { metadata: undefined }
2026-02-01T12:45:42.859Z [Home Assistant] [info] Server transport closed { metadata: undefined }
2026-02-01T12:45:42.859Z [Home Assistant] [info] Client transport closed { metadata: undefined }
2026-02-01T12:45:42.859Z [Home Assistant] [info] Server transport closed (intentional shutdown) { metadata: undefined }
2026-02-01T12:45:42.859Z [Home Assistant] [info] Client transport closed { metadata: undefined }
2026-02-01T12:45:42.858Z [Home Assistant] [info] Shutting down server... { metadata: undefined }
2026-02-01T12:47:43.825Z [Home Assistant] [info] Initializing server... { metadata: undefined }
2026-02-01T12:47:43.850Z [Home Assistant] [info] Using MCP server command: C:\Users\akahn\AppData\Local\Microsoft\WinGet\Packages\astral-sh.uv_Microsoft.Winget.Source_8wekyb3d8bbwe\uvx.exe with args and path: {
metadata: {
args: [ '--refresh', 'ha-mcp@latest', [length]: 2 ],
paths: [
'C:\\Program Files (x86)\\Razer Chroma SDK\\bin',
'C:\\Program Files\\Razer Chroma SDK\\bin',
'C:\\WINDOWS\\system32',
'C:\\WINDOWS',
'C:\\WINDOWS\\System32\\Wbem',
'C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\',
'C:\\WINDOWS\\System32\\OpenSSH\\',
'C:\\Program Files (x86)\\NVIDIA Corporation\\PhysX\\Common',
'C:\\Program Files\\NVIDIA Corporation\\NVIDIA app\\NvDLISR',
'C:\\WINDOWS\\system32\\config\\systemprofile\\AppData\\Local\\Microsoft\\WindowsApps',
'C:\\Program Files (x86)\\Razer\\ChromaBroadcast\\bin',
'C:\\Program Files\\Razer\\ChromaBroadcast\\bin',
'C:\\Users\\akahn\\AppData\\Local\\Microsoft\\WindowsApps',
'',
'%SystemRoot%\\system32',
'%SystemRoot%',
'%SystemRoot%\\System32\\Wbem',
'%SYSTEMROOT%\\System32\\WindowsPowerShell\\v1.0\\',
'%SYSTEMROOT%\\System32\\OpenSSH\\',
'C:\\Users\\akahn\\AppData\\Local\\Microsoft\\WinGet\\Packages\\astral-sh.uv_Microsoft.Winget.Source_8wekyb3d8bbwe',
[length]: 20
]
}
} %o
2026-02-01T12:47:43.859Z [Home Assistant] [info] Server started and connected successfully { metadata: undefined }
2026-02-01T12:47:43.907Z [Home Assistant] [info] Message from client: {"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"claude-ai","version":"0.1.0"}},"jsonrpc":"2.0","id":0} { metadata: undefined }
+-----------------------------------------------------------------------------+
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| \u2584\u2580\u2580 \u2584\u2580\u2588 \u2588\u2580\u2580 \u2580\u2588\u2580 \u2588\u2580\u2584\u2580\u2588 \u2588\u2580\u2580 \u2588\u2580\u2588 |
| \u2588\u2580 \u2588\u2580\u2588 \u2584\u2584\u2588 \u2588 \u2588 \u2580 \u2588 \u2588\u2584\u2584 \u2588\u2580\u2580 |
| |
| |
| FastMCP 2.14.4 |
| https://gofastmcp.com |
| |
| \U0001f5a5 Server: ha-mcp |
| \U0001f680 Deploy free: https://fastmcp.cloud |
| |
+-----------------------------------------------------------------------------+
+-----------------------------------------------------------------------------+
| \u2728 FastMCP 3.0 is coming! |
| Pin `fastmcp < 3` in production, then upgrade when you're ready. |
+-----------------------------------------------------------------------------+
[02/01/26 06:47:45] INFO Starting MCP server 'ha-mcp' with server.py:2506
transport 'stdio'
2026-02-01T12:47:45.947Z [Home Assistant] [info] Message from server: {"jsonrpc":"2.0","id":0,"result":{"protocolVersion":"2025-06-18","capabilities":{"experimental":{},"prompts":{"listChanged":false},"resources":{"subscribe":false,"listChanged":false},"tools":{"listChanged":true},"tasks":{"list":{},"cancel":{},"requests":{"tools":{"call":{}},"prompts":{"get":{}},"resources":{"read":{}}}}},"serverInfo":{"name":"ha-mcp","version":"0.1.0","icons":[{"src":"https://raw.githubusercontent.com/homeassistant-ai/ha-mcp/master/packaging/mcpb/icon.svg","mimeType":"image/svg+xml"},{"src":"https://raw.githubusercontent.com/homeassistant-ai/ha-mcp/master/packaging/mcpb/icon-128.png","mimeType":"image/png","sizes":["128x128"]}]}}} { metadata: undefined }
2026-02-01T12:47:45.947Z [Home Assistant] [info] Message from client: {"method":"notifications/initialized","jsonrpc":"2.0"} { metadata: undefined }
2026-02-01T12:47:45.948Z [Home Assistant] [info] Message from client: {"method":"tools/list","params":{},"jsonrpc":"2.0","id":1} { metadata: undefined }
2026-02-01T12:47:45.948Z [Home Assistant] [info] Message from client: {"method":"prompts/list","params":{},"jsonrpc":"2.0","id":2} { metadata: undefined }
2026-02-01T12:47:45.948Z [Home Assistant] [info] Message from client: {"method":"resources/list","params":{},"jsonrpc":"2.0","id":3} { metadata: undefined }
2026-02-01T12:47:45.953Z [Home Assistant] [info] Message from server: {"jsonrpc":"2.0","id":1,"result":{"tools":[{"name":"ha_get_addon","title":"Get Add-ons","description":"Get Home Assistant add-ons - list installed or available from store.\n\nThis tool retrieves add-on information based on the source parameter:\n- source='...[162353 chars truncated]...: false for config-only restore)","type":"boolean"}},"required":["backup_id"],"type":"object"},"outputSchema":{"additionalProperties":true,"type":"object"},"annotations":{"title":"Restore Backup","destructiveHint":true},"_meta":{"_fastmcp":{"tags":[]}}}]}} { metadata: undefined }
2026-02-01T12:47:45.953Z [Home Assistant] [info] Message from server: {"jsonrpc":"2.0","id":2,"result":{"prompts":[]}} { metadata: undefined }
2026-02-01T12:47:45.953Z [Home Assistant] [info] Message from server: {"jsonrpc":"2.0","id":3,"result":{"resources":[]}} { metadata: undefined }🖥️ Client ApplicationClaude Desktop 📦 Installation Methoduvx ha-mcp 💻 Operating SystemWindows OS VersionWindows 11 📖 Setup Guide Followedhttps://homeassistant-ai.github.io/ha-mcp/guide-windows/ 🔄 Exact Steps You FollowedInstalled everything according to instructions 🐍 Python VersionNo response 📦 ha-mcp VersionNo response 🏠 Home Assistant VersionNo response 💡 Additional ContextNo response |
Replies: 7 comments
🔍 AnalysisThe user is experiencing a "tools available but not connected" state, which is likely caused by a combination of a bug in the server startup logic and potential network resolution issues on Windows. The server is currently skipping its built-in connection test during startup because the The "freezing" reported by the user is likely due to tool timeouts. When a tool is called, the server attempts to connect to Home Assistant. If the URL is unreachable or DNS resolution (especially for 🛠️ Suggested Steps
📊 Technical Analysis (for maintainers)Root Cause
Affected Code
Proposed Fix--- a/src/ha_mcp/__main__.py
+++ b/src/ha_mcp/__main__.py
@@ -194,7 +194,7 @@
show_banner = fastmcp.settings.show_cli_banner
# Create a task for the MCP server
- server_task = asyncio.create_task(_get_mcp().run_async(show_banner=show_banner))
+ server_task = asyncio.create_task(_get_server().start(show_banner=show_banner))
# Wait for either the server to complete or a shutdown signal
shutdown_task = asyncio.create_task(_shutdown_event.wait())
--- a/src/ha_mcp/server.py
+++ b/src/ha_mcp/server.py
@@ -165,7 +165,7 @@
area_query=area_name, group_by_domain=True
)
- async def start(self) -> None:
+ async def start(self, **kwargs: Any) -> None:
"""Start the Smart MCP server with async compatibility."""
logger.info(
f"🚀 Starting Smart {self.settings.mcp_server_name} v{self.settings.mcp_server_version}"
@@ -187,4 +187,4 @@
logger.info("🔧 Smart server with enhanced tools loaded")
# Run the MCP server with async compatibility
- await self.mcp.run_async()
+ await self.mcp.run_async(**kwargs)Related Issues/PRs
🤖 Automated analysis by Issue Bot |
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So I asked Claude to double check if it has access and it started running a Get System Overview check. That, too was hung, but when I clicked the dropdown arrow it did find my HA instance and says it can control it now. Seems like it's the same error as described here - https://www.reddit.com/r/ClaudeAI/comments/1qsdq58/claude_desktop_new_mcp_ui_bug_tools_freeze_until/ |
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I have the same issue that is unresolved. |
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Same issue here. Created a new long term token with no change. |
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All the reddit and GitHub discussions I see point for it to be a bug in the desktop app. Workaround is to click on the dropdown arrow when it freezes. Maybe open a ticket? |
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This morning, I created a new long lasting token and entered it into claude_desktop_config.json file. Still had issues, changed homeassistant.local to the ip address. Then claude actually suggested checking to make sure I was using http instead of https, because ssl wasn't working. Config file did indeed have https configured. Changed to http and now working again. |
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I'm experiencing the same bug as well. Hopefully, this gets fixed soon as it seems like a decent tool based on the feedback. |
All the reddit and GitHub discussions I see point for it to be a bug in the desktop app.
Workaround is to click on the dropdown arrow when it freezes.
Maybe open a ticket?
https://support.claude.com/en/articles/9015913-how-to-get-support