Urlaub Smart
REMOTE · URLAUB-SMART.DE · SCANNED SEP 27
Plan vacation days around public holidays, bridge days and school holidays in DE, AT and CH
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 Security57
- 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 5 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
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 Usability66
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1100 tokens (~220/item across 5 items; 5 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 Management67
- Stability observed for 20 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 6 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
How do I install the Urlaub Smart MCP server?
Urlaub Smart is a hosted endpoint at https://urlaub-smart.de/api/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 · urlaub-smart.de
claude mcp add --transport http de-urlaub-smart-planner 'https://urlaub-smart.de/api/mcp'
{
"mcpServers": {
"de-urlaub-smart-planner": {
"url": "https://urlaub-smart.de/api/mcp"
}
}
} {
"servers": {
"de-urlaub-smart-planner": {
"type": "http",
"url": "https://urlaub-smart.de/api/mcp"
}
}
} [mcp_servers.de-urlaub-smart-planner] url = "https://urlaub-smart.de/api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"de-urlaub-smart-planner": {
"type": "remote",
"url": "https://urlaub-smart.de/api/mcp",
"enabled": true
}
}
} openclaw mcp add de-urlaub-smart-planner --url 'https://urlaub-smart.de/api/mcp' --transport streamable-http
mcp_servers:
de-urlaub-smart-planner:
url: "https://urlaub-smart.de/api/mcp" {
"McpServers": {
"de-urlaub-smart-planner": {
"Transport": "http",
"Url": "https://urlaub-smart.de/api/mcp"
}
}
} assistant mcp add de-urlaub-smart-planner -t streamable-http -u 'https://urlaub-smart.de/api/mcp'
{
"mcpServers": {
"de-urlaub-smart-planner": {
"type": "http",
"url": "https://urlaub-smart.de/api/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.
- 26 Sept 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- “best_bridge_days” reworded the description of “region” cosmetic
- “childcare_gap” reworded the description of “region” cosmetic
- “plan_vacation” reworded the description of “region” cosmetic
- “public_and_school_holidays” reworded the description of “region” cosmetic
- 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
- 24 Sept 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Schema quality: 189 → 210 ▼ functional
- New tool “childcare_gap” functional
- “plan_vacation” added an optional parameter “shift” cosmetic
- “best_bridge_days” reworded the description of “locale” cosmetic
- “plan_vacation” reworded the description of “locale” cosmetic
- “public_and_school_holidays” reworded the description of “locale” cosmetic
- 23 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.
- 21 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 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 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 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 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 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 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 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 27 Sept 2026 · Probed https://urlaub-smart.de/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=urlaub-smart.de | CN=YR1,O=Let's Encrypt,C=US | 4 Sept 2026 | 3 Dec 2026 | RSA 4096 | SHA256-RSA | 6f69c3a741045d8defa382541e49fe9928b |
| SANs: urlaub-smart.de | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| 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 urlaub-smart.de. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| de. | present | 26755 | 8 | Verified |
| urlaub-smart.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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://urlaub-smart.de/api/mcp | Verified | 200 | |
| http (plaintext) | http://urlaub-smart.de/api/mcp | HTTPS enforced | 302 | https://urlaub-smart.de/api/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 →
best_bridge_days Best bridge days and levers ~164
The six best non-overlapping vacation levers of a year for a region: classic bridge days (1 vacation day → 4 days off) and holiday clusters (e.g. 4 days → 10 days off), with booking dates, holidays used and factor. Includes a markdown table and the page URL.
| Name | Type | Req | Description |
|---|---|---|---|
| locale | string | – | Language of names and explanations (German only) |
| region | string | yes | Region as name, slug or ISO code, e.g. "Bayern", "bavaria", "DE-BY", "Tirol", "Zürich" or a country like "Deutschland" / "AT". Germany, Austria and Switzerland only. |
| year | integer | – | Planning year; defaults to the year people currently plan for |
No output schema declared.
No examples provided.
childcare_gap School-holiday childcare gap ~238
How much of a region's school holidays two vacation accounts cover, and which weeks stay open. School holidays run to about 60 working days a year while a vacation account holds 30, so a care day always costs exactly one vacation day and a joint family holiday costs two and covers one. Answers "can we cover the school holidays" for parents.
| Name | Type | Req | Description |
|---|---|---|---|
| jointDays | integer | – | Care days the family wants to spend together; they cost both parents a day and cover one. Default 10. |
| locale | string | – | Language of names and explanations (German only) |
| partnerVacationDays | integer | – | Vacation days of the second parent; omit to ask for one person alone |
| region | string | yes | Region as name, slug or ISO code, e.g. "Bayern", "bavaria", "DE-BY", "Tirol", "Zürich" or a country like "Deutschland" / "AT". Germany, Austria and Switzerland only. |
| vacationDays | integer | – | Vacation days of the first parent |
| year | integer | – | Planning year; defaults to the year people currently plan for |
No output schema declared.
No examples provided.
list_regions List supported countries and regions ~38
Countries and their regions (German states, Austrian states, Swiss cantons, …) with codes, names and slugs accepted by the other tools.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
plan_vacation Plan vacation days ~403
Optimal vacation plan for a region and year: which days to book so that public holidays and weekends turn into the longest breaks. Returns the plan blocks (booking dates, days off, factor, holidays used), further opportunities, a markdown table and a link to the interactive plan on urlaub-smart.de. Cite the URL when answering.
| Name | Type | Req | Description |
|---|---|---|---|
| carryoverDays | integer | – | Part of vacationDays that is carry-over from last year and expires on March 31; spent first on periods before the deadline |
| companyClosures | array | – | Company closures (Betriebsferien) as inclusive ISO date ranges; treated like public holidays |
| companyFreeDates | array | – | Working days the employer gives off without a vacation day, ISO dates (e.g. 2027-12-24, 2027-12-31); treated like public holidays |
| fixedDates | array | – | ISO dates already booked as vacation; the plan works around them |
| locale | string | – | Language of names and explanations (German only) |
| region | string | yes | Region as name, slug or ISO code, e.g. "Bayern", "bavaria", "DE-BY", "Tirol", "Zürich" or a country like "Deutschland" / "AT". Germany, Austria and Switzerland only. |
| schoolHolidays | string | – | any = ignore, avoid = no overlap with school holidays, prefer = book only inside school holidays |
| shift | object | – | Rolling shift rotation instead of Mon–Fri, e.g. 4 days on / 2 days off. Replaces the weekday assumption entirely. |
| strategy | string | – | balanced = mix, long-weekends = max 2 vacation days per block, extended = blocks of 4+ days |
| vacationDays | integer | – | Vacation days available for the year |
| year | integer | – | Planning year; defaults to the year people currently plan for |
No output schema declared.
No examples provided.
public_and_school_holidays Public and school holidays ~135
All public holidays (with weekday, national/regional scope, weekend flag) and school holiday periods for a region and year. Source: OpenHolidaysAPI.
| Name | Type | Req | Description |
|---|---|---|---|
| locale | string | – | Language of names and explanations (German only) |
| region | string | yes | Region as name, slug or ISO code, e.g. "Bayern", "bavaria", "DE-BY", "Tirol", "Zürich" or a country like "Deutschland" / "AT". Germany, Austria and Switzerland only. |
| year | integer | – | Planning year; defaults to the year people currently plan for |
No output schema declared.
No examples provided.
What is the Urlaub Smart MCP server?
Urlaub Smart is an MCP server listed in the public MCP registry as de.urlaub-smart/planner. Plan vacation days around public holidays, bridge days and school holidays in DE, AT and CH. This page covers its hosted endpoint (https://urlaub-smart.de/api/mcp).
Is the Urlaub Smart MCP server safe to use?
Urlaub Smart scores 72 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 Urlaub Smart MCP server expose?
Urlaub Smart exposes 5 tools: plan_vacation, best_bridge_days, public_and_school_holidays, childcare_gap, list_regions. Their descriptions and schemas cost roughly 978 tokens of context every time the server is loaded.
Does the Urlaub Smart MCP server require authentication?
No. We connected to Urlaub Smart without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Urlaub Smart MCP server still maintained?
Urlaub Smart is still listed as active in the MCP registry. We last reached this channel on 27 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.