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HouseExhale MCP Server

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not responding

HouseExhale is listed as active in the registry but did not answer our last check. It exposes 5 tools.

Explain bedroom CO2 readings, check certified HRV/ERV airflow, and find US installers and rebates.

Uptime history 17 days of history · worst day 3%
17 days agonow
2.2%
Uptime 24h
2 of 91 checks
5
Tools
read from the server
428 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 3

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 4 November 2026. No other catalogue keeps this.

4 Nov 2 tools changed the parameters they ask for check_ventilation_unit, explain_co2_reading
4 Nov a tool description was rewritten find_installers

HouseExhale does not always answer

Over the last week it answered 15.6% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add houseexhale --transport http https://houseexhale.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://houseexhale.com/mcp
~/.codex/config.toml
[mcp_servers.houseexhale]
url = "https://houseexhale.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "houseexhale": {
      "url": "https://houseexhale.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "houseexhale": {
      "type": "http",
      "url": "https://houseexhale.com/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

explain
explain_co2_reading
Explains a bedroom CO₂ reading against the precautionary 800 ppm average-while-asleep goal: band, distance from the goal, whether the measurement is comparable, signs of a monitor reading low, and free fixes with trade-offs. The goal is not a health limit. Door-open nights appear only as one-night tests, not fixes.
installers
find_installers
Lists HRV and ERV installer companies for a US ZIP code in HouseExhale’s neutral order, with its ordering rule and coverage limits. Returns member companies where the installer program is open, otherwise researched companies from public pages covering the Colorado Front Range and New England. Installer membership and listing are free. Optional paid installer tools do not affect inclusion or ordering. No paid placements. This public tool cannot contact companies.
rebates
find_rebates
What HouseExhale’s research found for a state (by ZIP code or state): utility and state programs that pay toward an HRV or ERV by name, other ventilation rebates, air sealing and insulation help, the state’s federal home energy rebates, state tax credits, and the status of the federal tax credits. Each with its link and date. Never promises eligibility.
units
units_to_ask_about
Lists up to three reviewed HRV/ERV families whose HVI-certified airflow covers what the household’s bedrooms need at night, with margin: units to ask installers about, never a single pick or a recommendation, and never paid placement. Also returns the night airflow target and how it was worked out.
ventilation
check_ventilation_unit
Checks a quoted HRV or ERV against bedroom airflow needs using exact-model HVI-certified data. Returns a screening verdict, reasons, assumptions and questions for the installer. Ambiguous model names return candidates for clarification rather than a guessed model. Does not provide a permit-ready design or guarantee installation performance.

Endpoints

URLTransportStateLatencyChecked
https://houseexhale.com/mcp streamable-http answering 75 ms 11 min ago

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HouseExhale — questions

Answers built from our own checks of this server.

What can HouseExhale do?
It exposes 5 tools, read directly from the server on our last check. Among them: check_ventilation_unit, explain_co2_reading, find_installers, find_rebates, units_to_ask_about. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is HouseExhale working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 2 of 91 checks got a reply (2.2%), average response time 428 ms. The bar chart above shows every period we have measured.
The registry lists HouseExhale 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 HouseExhale?
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 HouseExhale need an API key?
No. HouseExhale completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is HouseExhale?
It answers our handshake in 428 ms on average, which is faster than 29% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.