GROO reality
REMOTE · WWW.GROO.CZ · SCANNED OCT 2
Nabídka nemovitostí GROO reality — byty, domy a pozemky v Praze a okolí. Jen pro čtení, bez klíče.
Available components
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 Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 12 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- 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: signatures are present but failed validation. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability79
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 1056 tokens (~88/item across 12 items; 12 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage97
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 92% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 12 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 13 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
How do I install the GROO reality MCP server?
GROO reality is a hosted endpoint at https://www.groo.cz/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 · www.groo.cz
claude mcp add --transport http cz-groo-reality 'https://www.groo.cz/mcp'
{
"mcpServers": {
"cz-groo-reality": {
"url": "https://www.groo.cz/mcp"
}
}
} {
"servers": {
"cz-groo-reality": {
"type": "http",
"url": "https://www.groo.cz/mcp"
}
}
} [mcp_servers.cz-groo-reality] url = "https://www.groo.cz/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"cz-groo-reality": {
"type": "remote",
"url": "https://www.groo.cz/mcp",
"enabled": true
}
}
} openclaw mcp add cz-groo-reality --url 'https://www.groo.cz/mcp' --transport streamable-http
mcp_servers:
cz-groo-reality:
url: "https://www.groo.cz/mcp" {
"McpServers": {
"cz-groo-reality": {
"Transport": "http",
"Url": "https://www.groo.cz/mcp"
}
}
} assistant mcp add cz-groo-reality -t streamable-http -u 'https://www.groo.cz/mcp'
{
"mcpServers": {
"cz-groo-reality": {
"type": "http",
"url": "https://www.groo.cz/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 23 Sept 26 +1
- Stability: 0.97 → pass security
- 21 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.
- 13 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.
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 2 Oct 2026 · Probed https://www.groo.cz/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=www.groo.cz | CN=YE1,O=Let's Encrypt,C=US | 17 Aug 2026 | 15 Nov 2026 | ECDSA 256 | ECDSA-SHA384 | 5ff4f5dce9647c2b25cb3ad1d88c89716f4 |
| SANs: www.groo.cz | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC bogus
Validation of www.groo.cz. — Bogus
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| cz. | present | 20237 | 13 | Verified |
| groo.cz. | present | 52598 | 14 | Verified |
| www.groo.cz. | Bogus address RRset signature failed verification |
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=31536000; includeSubDomains |
| content-security-policy | frame-ancestors 'self' |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | geolocation=(), microphone=(), camera=(), payment=(), usb=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://www.groo.cz/mcp | Verified | 200 | |
| http (plaintext) | http://www.groo.cz/mcp | HTTPS enforced | 308 | https://www.groo.cz/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 →
aktuality Novinky kanceláře ~50
Články z webu — dění v kanceláři a na realitním trhu.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Kolik nejnovějších vrátit (výchozí 5). |
No output schema declared.
No examples provided.
ciselniky Možnosti filtru ~40
Povolené hodnoty filtru: typy, kategorie i s dispozicemi a obce, ve kterých nabídky opravdu jsou.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
detail_aktuality Detail aktuality ~41
Celý text jednoho článku, ne jen perex.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Číslo článku ze seznamu aktuality. |
No output schema declared.
No examples provided.
detail_nabidky Detail nabídky ~62
Vrátí podrobnosti jedné nabídky: popis, parametry, adresu, fotky a kontakt na makléřku.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Číslo nabídky, např. "groo1516". |
No output schema declared.
No examples provided.
detail_projektu Detail projektu ~45
Developerský projekt i se seznamem jednotek, které se v něm prodávají.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Číslo projektu ze seznamu projekty. |
No output schema declared.
No examples provided.
hledej_nemovitosti Hledat nemovitosti ~382
Vyhledá nemovitosti v aktuální nabídce GROO reality. Všechny filtry jsou nepovinné a dají se kombinovat. Vrací i celkový počet nálezů.
| Name | Type | Req | Description |
|---|---|---|---|
| cena_do | number | – | Horní hranice ceny v Kč. Dvě věci, které je potřeba vědět: porovnává se s cenou bez ohledu na prodej či pronájem (u „do 7 000 000" projdou i všechny pronájmy — kombinuj s parametrem typ), a projdou t… |
| dispozice | string | – | Štítky oddělené čárkou, např. "2+kk,3+1" nebo "kanceláře". |
| dotaz | string | – | Fulltext přes obec, ulici, popis i číslo nabídky. Hledá se od začátku slova a čeština se neskloňuje, takže zadávej KMEN, ne tvar z věty: „lodži" najde lodžie i lodžií, kdežto „lodžie" jen část z nich. |
| kategorie | string | – | – |
| limit | number | – | Kolik nabídek vrátit (výchozí 20, nejvíc 50). |
| obec | string | – | Obec ze seznamu v nástroji ciselniky. |
| typ | string | – | Prodej či pronájem |
| vymera_od | number | – | Dolní hranice výměry v m². |
No output schema declared.
No examples provided.
kontakt Kontakt na kancelář ~20
Telefon, e-mail a adresa realitní kanceláře.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
poptavky Co kancelář shání ~70
Nemovitosti, které GROO reality aktivně poptává pro své klienty. Použij, když někdo prodává nebo se ptá, jestli má o jeho nemovitost někdo zájem — je to opačný směr než hledej_nemovitosti.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
projekty Developerské projekty ~41
Projekty ze sekce Doporučujeme — novostavby a rekonstrukce, u kterých kancelář prodává více jednotek najednou.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
reference Reference klientů ~39
Co o spolupráci napsali klienti. Hodí se, když se někdo ptá na zkušenosti nebo spolehlivost kanceláře.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
stranka Obsah stránky ~79
Text jedné stránky webu v markdownu. Použij, když se někdo ptá na to, jak kancelář pracuje, co dělá při prodeji nebo co nabízí za služby.
| Name | Type | Req | Description |
|---|---|---|---|
| uri | string | yes | Adresa stránky jako na webu, např. „sluzby/prodej" nebo „kontakt". |
No output schema declared.
No examples provided.
stranky Stránky webu ~44
Seznam stránek webu — služby kanceláře, právní informace, o makléřce. Obsah konkrétní stránky vrátí nástroj stranka.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
What is the GROO reality MCP server?
GROO reality is an MCP server listed in the public MCP registry as cz.groo/reality. Nabídka nemovitostí GROO reality, byty, domy a pozemky v Praze a okolí. Jen pro čtení, bez klíče. This page covers its hosted endpoint (https://www.groo.cz/mcp).
Is the GROO reality MCP server safe to use?
GROO reality scores 80 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 GROO reality MCP server expose?
GROO reality exposes 12 tools: hledej_nemovitosti, detail_nabidky, ciselniky, poptavky, projekty, and 7 more. Their descriptions and schemas cost roughly 913 tokens of context every time the server is loaded.
Does the GROO reality MCP server require authentication?
No. We connected to GROO reality without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the GROO reality MCP server still maintained?
GROO reality is still listed as active in the MCP registry. We last reached this channel on 2 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.