[BUG] WebSocket not authenticated

[barisahmet]

🐛 Bug Description

Claude.ai (cloud) can't modify anything in my instance, it can read entities, automations etc.

🔄 Steps to Reproduce

Steps to reproduce the behavior:

1. Tell claude to modify anything

✅ Expected Behavior

It should modify my automations, entities etc.

❌ Actual Behavior

Claude says that websocket authentication failed. And here is add-on logs:

INFO:     172.30.33.14:50914 - "POST /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:50914 - "POST /private_xxx HTTP/1.1" 202 Accepted
INFO:     172.30.33.14:50914 - "GET /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:50926 - "POST /private_xxxHTTP/1.1" 200 OK
WebSocket connection failed: server rejected WebSocket connection: HTTP 401
WebSocket message failed: WebSocket not authenticated
INFO:     172.30.33.14:50926 - "POST /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:55420 - "POST /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:55420 - "GET /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:55436 - "POST /private_xxx HTTP/1.1" 202 Accepted
INFO:     172.30.33.14:55436 - "POST /private_xxx HTTP/1.1" 200 OK
WebSocket connection failed: server rejected WebSocket connection: HTTP 401
WebSocket message failed: WebSocket not authenticated
INFO:     172.30.33.14:55436 - "POST /private_xxx HTTP/1.1" 200 OK

200 OK ones are read commands, list entities etc.
But when claude tries to write or modify anything, 401 happens.

📊 Environment

• Home Assistant version: (e.g., 2025.12.0b2)
• MCP Server version: (4.7.1)

📝 Error Logs

If applicable, add error logs to help explain your problem:

INFO:     172.30.33.14:50914 - "POST /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:50914 - "POST /private_xxx HTTP/1.1" 202 Accepted
INFO:     172.30.33.14:50914 - "GET /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:50926 - "POST /private_xxxHTTP/1.1" 200 OK
WebSocket connection failed: server rejected WebSocket connection: HTTP 401
WebSocket message failed: WebSocket not authenticated
INFO:     172.30.33.14:50926 - "POST /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:55420 - "POST /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:55420 - "GET /private_xxx HTTP/1.1" 200 OK
INFO:     172.30.33.14:55436 - "POST /private_xxx HTTP/1.1" 202 Accepted
INFO:     172.30.33.14:55436 - "POST /private_xxx HTTP/1.1" 200 OK
WebSocket connection failed: server rejected WebSocket connection: HTTP 401
WebSocket message failed: WebSocket not authenticated
INFO:     172.30.33.14:55436 - "POST /private_xxx HTTP/1.1" 200 OK

🧪 Test Results

If E2E tests are affected:

• Integration tests pass
• E2E tests fail
• Performance impact observed

📸 Screenshots

If applicable, add screenshots to help explain your problem.

🔍 Additional Context

Add any other context about the problem here.

[julienld]

@barisahmet : fix is published. Please update the addon and let me know if it works now.

make sure it's version 4.7.3

[julienld]

(leaving it open until we confirm)

[barisahmet]

Yes, it's working perfectly now. Thanks!