HA NOVA MCP Server

by markusleben Your server? Claim it

not responding

HA NOVA is listed as active in the registry but did not answer our last check. Last commit 7 Nov 2026.

Ask about your Home Assistant and change it from an AI chat, with your OK for risky actions.

Uptime history 43 hours of history · worst hour 0%

43 hours agonow

0.0%

Uptime 24h

0 of 91 checks

—

Tools

hidden behind auth

0 ms

Response time

average over 24h

Stars

last commit 7 Nov 2026

What the code does

We read the source, 20 h ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Builds a file path from a variable cli/bundle_apply.go:259, cli/claude_marketplace.go:565, cli/client_status.go:105 и ещё 20

    target := filepath.Join(destDir, cleanName)

Builds a database query by concatenation cli/confirm_batch_text.go:77, cli/plan_raw_helper.go:111, cli/setup_first_look.go:84

        if r.Code == reasonConfigDelete || sayUnseenCodes[r.Code] && explained[r.EntityID+"|"+r.Via] {

Runs an external command nova/src/runtime/chat-apps.ts:154

    const proc = spawn(

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add ha-nova --transport http 'https://{home_assistant_address}/api/ha_nova/mcp'

Settings → Connectors → Add custom connector, then paste this address

https://{home_assistant_address}/api/ha_nova/mcp

~/.codex/config.toml

[mcp_servers.ha-nova]
url = "https://{home_assistant_address}/api/ha_nova/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "ha-nova": {
      "url": "https://{home_assistant_address}/api/ha_nova/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "ha-nova": {
      "type": "http",
      "url": "https://{home_assistant_address}/api/ha_nova/mcp"
    }
  }
}

Endpoints

URL	Transport	State	Latency	Checked
https://{home_assistant_address}/api/ha_nova/mcp	streamable-http	answering	0 ms	9 min ago

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HA NOVA — questions

Answers built from our own checks of this server.

Is HA NOVA working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 0 ms. The bar chart above shows every period we have measured.

The registry lists HA NOVA as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect HA NOVA?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does HA NOVA need an API key?

No. HA NOVA completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.

Is HA NOVA open source?

The code is open source: it is published under the MIT licence, written in Go, 20 stars on GitHub and 16 open issues. The licence covers the code in the repository, not the hosted service, which runs on its operator's own terms.