Wärmepumpen-Vorcheck
REMOTE · WAERMEPUMPEN-VORCHECK.DE
Heat-pump readiness check for German single-family houses: traffic light, reasons, next step
Available components
Last scanned (11 hours ago)
Scores higher than 64% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Cloud Infrastructure
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 Usability59
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 742 tokens (~742/item across 1 items; 1 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management30
- Stability observed for 9 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
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.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.
- 5 Nov 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.
- 3 Nov 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.
- 2 Nov 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Tool “waermepumpen_vorcheck” rewrote its description, which is the text the model reads security
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Oct 26 +1
- Stability: unverified → 0.03 ▲ functional
- 27 Oct 26 70
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 5 Nov 2026 · Probed https://waermepumpen-vorcheck.de/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=waermepumpen-vorcheck.de | CN=WR3,O=Google Trust Services,C=US | 4 Oct 2026 | 2 Jan 2027 | RSA 2048 | SHA256-RSA | fff3c245506d84a2122ebba6fbbf1367 |
| SANs: waermepumpen-vorcheck.de, www.waermepumpen-vorcheck.de | ||||||
| CN=WR3,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7ff005a91568d63abc22861684aa4b5a |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
| CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 1 Sept 1998 | 28 Jan 2028 | RSA 2048 | SHA1-RSA | 40000000001154b5ac394 |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of waermepumpen-vorcheck.de. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| de. | present | 26755 | 8 | Verified |
| waermepumpen-vorcheck.de. | 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=31556926 |
| content-security-policy | default-src 'self'; script-src 'self' 'unsafe-inline' https://apis.google.com; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; font-src 'self'; connect-src 'self' blob: data: https://identitytoolkit.googleapis.com https://securetoken.googleapis.com https://firestore.googleapis.com; frame-src https://waermepumpen-vorcheck.firebaseapp.com; worker-src 'self' blob:; frame-ancestors 'none'; base-uri 'self'; form-action 'self'; object-src 'none' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | interest-cohort=(), browsing-topics=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://waermepumpen-vorcheck.de/mcp | Verified | 200 | |
| http (plaintext) | http://waermepumpen-vorcheck.de/mcp | HTTPS enforced | 301 | https://waermepumpen-vorcheck.de/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 →
waermepumpen_vorcheck Wärmepumpen-Vorcheck: Ampel für ein Haus ~575
Verwenden, wenn jemand eine erste Einschätzung der Voraussetzungen für eine Luft-Wasser-Wärmepumpe in einem selbst bewohnten Einfamilien-, Doppel- oder Reihenhaus in Deutschland möchte. Liefert eine Ampel (gruen/gelb/rot/unbekannt) mit Begründung, die Einordnung der Heizlast pro m² (niedrig/mittel/hoch), den wichtigsten nächsten Schritt und einen vorbefüllten Link zum vollständigen Check. Keine normgerechte Heizlastberechnung, Gerätegröße, Förderzusage, Buchung oder Antragstellung. Use for an initial heat-pump readiness assessment of an owner-occupied single-family house in Germany; not for system design, grant applications, or booking.
| Name | Type | Req | Description |
|---|---|---|---|
| abschlag_gas_eur_monat | number | – | Nur wenn kein Jahresverbrauch bekannt ist: monatlicher Abschlag für Gas in €. Wird als grobe Schätzung umgerechnet; sie kann die Einschätzung nie verschlechtern. |
| baujahr | string | – | Baujahresklasse des Gebäudes (nicht der Heizung) |
| brennstoff | string | – | Brennstoff und Einheit des Verbrauchs (Gas in kWh oder m³, Heizöl in Litern, Pellets in kg, Flüssiggas in Litern, Fernwärme in kWh, Heizstrom in kWh) |
| flaeche | number | – | Beheizte Wohnfläche in m² |
| haustyp | string | – | Freistehend, Doppelhaushälfte (dhh), Reihenend- oder Reihenmittelhaus |
| heizflaechen | string | – | Überwiegend Fußbodenheizung, Heizkörper, gemischt – oder keine (keine wassergeführte Heizung, z. B. Nachtspeicher/Elektro) |
| heizsystem | string | – | Besonderheit der Wärmeverteilung: Gas-Etagenheizung (etage) oder Einrohrheizung (einrohr); sonst zentral |
| saniert | array | – | Bereits gedämmt/erneuert: Dach bzw. oberste Geschossdecke, Fenster, Außenwände, Kellerdecke |
| test55 | string | – | Wurden an einem kalten Tag mit höchstens 55 °C Vorlauf alle Räume warm? teilweise = ein oder zwei Räume blieben kühl, nein = mehrere. Bei Fußbodenheizung nicht nötig. |
| verbrauch | number | – | Jahresverbrauch in der gewählten Einheit, aus der Jahresabrechnung |
| verbrauch_ganzes_jahr | boolean | – | false, wenn der Verbrauch nicht für ein ganzes Jahr gilt |
| warmwasser | string | – | Wird das Warmwasser mit derselben Heizung erwärmt? |
| Name | Type | Req | Description |
|---|---|---|---|
| ampel | string | yes | – |
| begruendung | array | yes | – |
| heizlast_pro_m2 | string | yes | – |
| hinweis | string | yes | – |
| link | string | yes | – |
| naechster_schritt | string|null | yes | – |
| titel | string | yes | – |
| zusammenfassung | string | yes | – |
No examples provided.
How do I install the Wärmepumpen-Vorcheck MCP server?
Wärmepumpen-Vorcheck is a hosted endpoint at https://waermepumpen-vorcheck.de/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 · waermepumpen-vorcheck.de
claude mcp add --transport http de-waermepumpen-vorcheck-vorcheck 'https://waermepumpen-vorcheck.de/mcp'
What is the Wärmepumpen-Vorcheck MCP server?
Wärmepumpen-Vorcheck is an MCP server listed in the public MCP registry as de.waermepumpen-vorcheck/vorcheck. Heat-pump readiness check for German single-family houses: traffic light, reasons, next step. This page covers its hosted endpoint (https://waermepumpen-vorcheck.de/mcp).
Is the Wärmepumpen-Vorcheck MCP server safe to use?
Wärmepumpen-Vorcheck scores 75 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 Wärmepumpen-Vorcheck MCP server expose?
Wärmepumpen-Vorcheck exposes 1 tool: waermepumpen_vorcheck. Their descriptions and schemas cost roughly 575 tokens of context every time the server is loaded.
Does the Wärmepumpen-Vorcheck MCP server require authentication?
No. We connected to Wärmepumpen-Vorcheck without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Wärmepumpen-Vorcheck MCP server still maintained?
Wärmepumpen-Vorcheck is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.