Issue Connecting Claude.ai with HACS version on HA Green

[gschlossnagle]

Hello,

I'm trying to run HA-MCP on an HA-Green and accessing via a cloudflared tunnel. Request tunneling does seem to work (I see records in both the Cloudflare Live Logs for the tunnel and in the Add-on logs.

When I attempt to establish the connector in claude.ai I get:

"2026-03-18 14:34:07 INFO: 172.30.33.3:43522 - "POST /private_XXXXXXXX HTTP/1.1" 406 Not Acceptable INFO:mcp.server.streamable_http:Terminating session: None

In the Cloudflare Logs, I note that the Accept request header that Claude seems to pass is "*/*". From reading another bug report, it seems like the underlying ha-mcp implementation expects Accept: text/event-stream.

Am I doing something wrong? Any advice on how to proceed?

Cloudflare Log Payload for claude.ai's initial POST request:

{
  "ingressRule": 1,
  "path": "/private_XXXXXXXXXXX",
  "originService": "http://homeassistant.local:9583",
  "host": "XXXXXXXX.",
  "headers": {
    "Cf-Visitor": [
      "{\"scheme\":\"https\"}"
    ],
    "Cf-Warp-Tag-Id": [
      "XXXXXXXXXX"
    ],
    "Mcp-Protocol-Version": [
      "2025-11-25"
    ],
    "Traceparent": [
      "0XXXXXXXXXXX"
    ],
    "User-Agent": [
      "python-httpx/0.28.1"
    ],
    "Content-Type": [
      "application/json"
    ],
    "X-Forwarded-For": [
      "160.79.106.11"
    ],
    "X-Forwarded-Proto": [
      "https"
    ],
    "Accept": [
      "*/*"
    ],
    "Cdn-Loop": [
      "cloudflare; loops=1"
    ],
    "Content-Length": [
      "158"
    ],
    "Accept-Encoding": [
      "gzip, br"
    ],
    "Cf-Connecting-Ip": [
      "160.79.106.11"
    ],
    "Cf-Ray": [
      "9de65fe60b094334-EWR"
    ],
    "X-Cloud-Trace-Context": [
      "XXXXXXXXXX2;o=1"
    ],
    "Cf-Ipcountry": [
      "US"
    ]
  },
  "content-length": 158,
  "connIndex": 1
}```

[gschlossnagle]

Closing my own discussion.

Found another ticket recommending to turn off 'Block AI Bots' in Cloudflare and that works. Recommend updating docs to note this.