HouseExhale
REMOTE · HOUSEEXHALE.COM
Explain bedroom CO2 readings, check certified HRV/ERV airflow, and find US installers and rebates.
Available components
Last scanned (22 hours ago)
Scores higher than 84% of remote servers
Reachable. Last reached 4 Nov 2026.
Category IoT and Hardware
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability82
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 1052 tokens (~105/item across 10 items; 5 tools + 5 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management43
- Stability observed for 13 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
- Supports UI / widget rendering.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +2
- The server rewrote its instructions, which are the text every model session reads security
- Tool “find_installers” rewrote its description, which is the text the model reads security
- Schema quality: fail → pass ▲ functional
- Server version: 1.0.0 → 1.0.1 functional
- “check_ventilation_unit” reworded the description of “unitId” cosmetic
- “explain_co2_reading” reworded the description of “measured” cosmetic
- 2 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 24 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 23 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Schema quality: 133 → 164 ▼ functional
- Stability: unverified → 0.03 ▲ functional
- 22 Oct 26 74
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Nov 2026 · Probed https://houseexhale.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=houseexhale.com | CN=YR2,O=Let's Encrypt,C=US | 7 Oct 2026 | 5 Jan 2027 | RSA 2048 | SHA256-RSA | 5bf689d9b7a20cfdf8a8e09d16371ace01b |
| SANs: houseexhale.com | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of houseexhale.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| houseexhale.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(self), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://houseexhale.com/mcp | Verified | 200 | |
| http (plaintext) | http://houseexhale.com/mcp | HTTPS enforced | 308 | https://houseexhale.com/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
check_ventilation_unit Check a quoted HRV or ERV ~229
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.
| Name | Type | Req | Description |
|---|---|---|---|
| bedrooms | array | yes | Every bedroom, with how many people sleep in each |
| floorAreaSqft | number | – | Conditioned floor area in square feet, for the daytime code rate |
| model | string | – | The brand and model exactly as the quote prints it, e.g. "Broan-NuTone B160E75RS" |
| quotedType | string | – | Whether the quote calls it an HRV or an ERV, to catch a mismatch |
| state | string | – | Two-letter US state, e.g. "CO" |
| unitId | string | – | An id from a previous result’s candidates identifying the exact model confirmed by the person |
| zip | string | – | Five-digit ZIP code (used for the state if state is missing) |
No output schema declared.
No examples provided.
explain_co2_reading Explain a CO₂ reading ~170
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.
| Name | Type | Req | Description |
|---|---|---|---|
| measured | string | yes | night_average: the recorded average while asleep. overnight_high: the highest recorded number overnight. spot: one reading at one moment. A morning spot reading is not a recorded overnight high or av… |
| ppm | number | yes | The reading in parts per million |
| room | string | – | Where it was measured (default bedroom) |
| sleepers | integer | – | People who slept in the room that night, if known |
No output schema declared.
No examples provided.
find_installers Find HRV/ERV installers ~153
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.
| Name | Type | Req | Description |
|---|---|---|---|
| job | array | – | Only if it applies: tight (just air sealed, insulated or newly built), no-ducts (no forced-air ducts), condo (condo or apartment), service (asking a past installer back) |
| zip | string | yes | The home’s five-digit ZIP code |
No output schema declared.
No examples provided.
find_rebates Rebates and tax credits ~112
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.
| Name | Type | Req | Description |
|---|---|---|---|
| state | string | – | Two-letter US state, if no ZIP code |
| zip | string | – | Five-digit ZIP code |
No output schema declared.
No examples provided.
units_to_ask_about HRV and ERV units to ask about ~148
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.
| Name | Type | Req | Description |
|---|---|---|---|
| bedrooms | array | yes | Every bedroom, with how many people sleep in each |
| floorAreaSqft | number | – | Conditioned floor area in square feet, for the daytime code rate |
| state | string | – | Two-letter US state, e.g. "CO" |
| zip | string | – | Five-digit ZIP code (used for the state if state is missing) |
No output schema declared.
No examples provided.
How do I install the HouseExhale MCP server?
HouseExhale is a hosted endpoint at https://houseexhale.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · houseexhale.com
claude mcp add --transport http attachmentnerd-houseexhale 'https://houseexhale.com/mcp'
What is the HouseExhale MCP server?
HouseExhale is an MCP server listed in the public MCP registry as io.github.attachmentnerd/houseexhale. Explain bedroom CO2 readings, check certified HRV/ERV airflow, and find US installers and rebates. This page covers its hosted endpoint (https://houseexhale.com/mcp).
Is the HouseExhale MCP server safe to use?
HouseExhale scores 81 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the HouseExhale MCP server expose?
HouseExhale exposes 5 tools: explain_co2_reading, check_ventilation_unit, units_to_ask_about, find_installers, find_rebates. Their descriptions and schemas cost roughly 812 tokens of context every time the server is loaded.
Does the HouseExhale MCP server require authentication?
No. We connected to HouseExhale without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the HouseExhale MCP server still maintained?
HouseExhale is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.