io.github.malkreide/swiss-holidays-mcp
PYPI · SWISS-HOLIDAYS-MCP · SCANNED SEP 20
Swiss school & public holidays, 26 cantons, by Schulart (OpenHolidays + Nager.Date)
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security50
- Malware scan not yet available for this package.Unverified
- No known CVEs affecting this package version or its production dependencies.Pass
- Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it. View diagnostics → Pass
- 0 of 29 dependencies flagged as unhealthy. View diagnostics → Pass
Provenance & Transparency48
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 58 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability68
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1791 tokens (~137/item across 13 items; 13 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 Management87
- Stability observed for 26 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage78
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 24% of tool parameters carry a description.Partial
- 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 13 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
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the io.github.malkreide/swiss-holidays-mcp server?
io.github.malkreide/swiss-holidays-mcp runs locally as a PyPI package, launched with uvx swiss-holidays-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
pypi · swiss-holidays-mcp
claude mcp add malkreide-swiss-holidays-mcp -- uvx swiss-holidays-mcp
{
"mcpServers": {
"malkreide-swiss-holidays-mcp": {
"command": "uvx",
"args": [
"swiss-holidays-mcp"
]
}
}
} {
"servers": {
"malkreide-swiss-holidays-mcp": {
"command": "uvx",
"args": [
"swiss-holidays-mcp"
]
}
}
} codex mcp add malkreide-swiss-holidays-mcp -- uvx swiss-holidays-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"malkreide-swiss-holidays-mcp": {
"type": "local",
"command": [
"uvx",
"swiss-holidays-mcp"
],
"enabled": true
}
}
} openclaw mcp add malkreide-swiss-holidays-mcp --command uvx --arg swiss-holidays-mcp
mcp_servers:
malkreide-swiss-holidays-mcp:
command: "uvx"
args: ["swiss-holidays-mcp"] {
"McpServers": {
"malkreide-swiss-holidays-mcp": {
"Transport": "stdio",
"Command": "uvx",
"Arguments": [
"swiss-holidays-mcp"
]
}
}
} assistant mcp add malkreide-swiss-holidays-mcp -t stdio -c uvx -a swiss-holidays-mcp
{
"mcpServers": {
"malkreide-swiss-holidays-mcp": {
"command": "uvx",
"args": [
"swiss-holidays-mcp"
]
}
}
} 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.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 −3
- Stability: pass → 0.80 functional
- 17 Sept 26 −15
- Malware scan: pass → unverified ▼ security
- Stability: 0.97 → pass security
- 16 Sept 26 +16
- Malware scan: unverified → pass ▲ security
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 13 Sept 26 −15
- Malware scan: pass → unverified ▼ security
- 12 Sept 26 +16
- Malware scan: unverified → pass ▲ security
- 11 Sept 26 −3
- Stability: pass → 0.80 functional
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 20 Sept 2026 · Analysed pypi/swiss-holidays-mcp@0.6.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | pypi |
Background: How many MCP packages publish verified provenance →
Install scripts 1 script
| Hook | Tier | Command |
|---|---|---|
| build_backend | allowlisted | hatchling.build |
Background: Why install scripts are a supply-chain risk →
Dependencies 29 packages
| Packages resolved | 29 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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_date ~117
Check whether a given date falls into school holidays or a public holiday. <use_case>The everyday scheduling question: can we hold the parents' evening on that Thursday? Checks one date against both school and public holidays.</use_case> The everyday question behind this tool: "Can we schedule the parents' evening on that Thursday?"
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | ISO code, e.g. CH-ZH |
| check_date_iso | string | yes | Date as YYYY-MM-DD |
| language | string | – | – |
| school_type | – | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | – |
| checked_date | string | yes | – |
| is_public_holiday | boolean | yes | – |
| is_school_holiday | boolean | yes | – |
| matches | array | yes | – |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
No examples provided.
compare_school_holidays ~120
Compare school holiday overlap between cantons for a calendar year. <use_case>Quantify inter-cantonal school-holiday overlap (pairwise day counts) for coordinating events or campaigns across cantonal borders.</use_case> Returns a pairwise matrix of overlapping holiday days. Defaults to `VS` (Volksschule) because that is the level most inter-cantonal coordination concerns.
| Name | Type | Req | Description |
|---|---|---|---|
| cantons | array | yes | – |
| language | string | – | – |
| school_type | – | – | – |
| year | integer | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| rows | array | yes | – |
| school_type_filter | – | yes | – |
| source | string | yes | Attribution string of the upstream source. |
| year | integer | yes | – |
No examples provided.
export_holidays_ics ~168
Export a canton's holidays for a year as an iCalendar (.ics) document. <use_case>Produce a ready-to-import .ics calendar of a canton's holidays for a year, filtered by public/school and Schulart.</use_case> Returns a ready-to-save `text/calendar` document with one all-day event per holiday. `include` selects `all` (default), `public` or `school`; combine with `school_type` (`VS`/`MS`/`BS`/`EO`) to narrow school holidays.
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | ISO code, e.g. CH-ZH |
| include | string | – | – |
| language | string | – | – |
| school_type | – | – | – |
| year | integer | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | – |
| event_count | integer | yes | Number of VEVENTs in the calendar. |
| filename | string | yes | Suggested file name, e.g. holidays-CH-ZH-2026.ics. |
| ics | string | yes | The full iCalendar (text/calendar) document. |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
| year | integer | yes | – |
No examples provided.
find_common_free_window ~109
Find date ranges in which all listed cantons are simultaneously on holiday. <use_case>Find a common free window across several cantons — joint events, maintenance or campaigns when every listed canton is on holiday.</use_case> Useful for planning campaigns, joint events or maintenance windows across cantonal borders.
| Name | Type | Req | Description |
|---|---|---|---|
| cantons | array | yes | – |
| language | string | – | – |
| min_days | integer | – | – |
| school_type | – | – | – |
| year | integer | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
| windows | array | yes | – |
No examples provided.
get_local_holidays ~286
Public holidays for a single municipality or district, incl. local specifics. <use_case>Answer the locality question the canton-level tools flatten away: which holidays are observed only in this town (e.g. Zurich's Sechselaeuten)?</use_case> <important_notes>scope is 'local' (specific here), 'regional' (canton/district) or 'national' (inherited). Accepts a name or a full subdivision code.</important_notes> Answers the local question the canton-level tools flatten away: which holidays are observed *only* here? The city of Zurich, for example, keeps Sechseläuten and Knabenschiessen (both half-day), which the rest of the canton does not. `municipality` accepts a name (e.g. "Zürich", "Morschach") or a full subdivision code (e.g. "CH-ZH-ZH-ZH"). The result lists every holiday that applies in that locality; each carries a `scope` of `local` (specific to this place), `regional` (inherited from the canton/district) or `national`.
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | ISO code, e.g. CH-ZH |
| language | string | – | – |
| municipality | string | yes | – |
| year | integer | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| holidays | array | yes | – |
| match_type | string | – | How the lookup key resolved (audit ARCH-003): 'exact' (code or full name / validated canton), 'fuzzy' (a single prefix match was assumed) or 'none' (nothing matched — see `note` for suggestions). |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
No examples provided.
get_long_weekends ~109
Return Swiss long weekends and the bridge days needed to create them. <use_case>Plan bridge days: which long weekends exist this year and which working days must be taken off to extend them.</use_case> <important_notes>Computed from federal public holidays (Nager.Date); cantonal-only holidays are not considered.</important_notes> Sourced from Nager.Date, which computes these from federal public holidays; cantonal-only holidays are not considered.
| Name | Type | Req | Description |
|---|---|---|---|
| year | integer | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| long_weekends | array | yes | – |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
| year | integer | yes | – |
No examples provided.
get_public_holidays ~120
Return public holidays for one canton and calendar year. <use_case>Get a canton's official public holidays for a whole year — cantonal holidays (Berchtoldstag, Fronleichnam) differ, so always pass the canton.</use_case> Cantonal holidays such as Berchtoldstag differ substantially across Switzerland, so always pass the canton rather than assuming the federal set.
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | ISO code, e.g. CH-ZH |
| language | string | – | – |
| year | integer | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| holidays | array | yes | – |
| match_type | string | – | How the lookup key resolved (audit ARCH-003): 'exact' (code or full name / validated canton), 'fuzzy' (a single prefix match was assumed) or 'none' (nothing matched — see `note` for suggestions). |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
No examples provided.
get_school_holidays ~266
Return school holiday periods for one canton in a date range. <use_case>Look up a canton's school holidays for planning within an explicit from/to window (term breaks, parent events, campaigns).</use_case> <important_notes>Apparent duplicates are the same period per Schulart; set school_type to collapse them. Cantons that do not differentiate return one table.</important_notes> Args: canton: ISO subdivision code, e.g. `CH-ZH`. valid_from: Inclusive start date, `YYYY-MM-DD`. valid_to: Inclusive end date, `YYYY-MM-DD`. school_type: Optional Schulart suffix -- `VS`, `MS`, `BS` or `EO`. Use `VS` for compulsory schooling (Volksschule). language: `DE`, `FR`, `IT` or `EN`. Records that look duplicated are usually the same period published for a different Schulart. Set `school_type` to collapse them.
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | ISO code, e.g. CH-ZH |
| language | string | – | – |
| school_type | – | – | – |
| valid_from | string | yes | Date as YYYY-MM-DD |
| valid_to | string | yes | Date as YYYY-MM-DD |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| holidays | array | yes | – |
| match_type | string | – | How the lookup key resolved (audit ARCH-003): 'exact' (code or full name / validated canton), 'fuzzy' (a single prefix match was assumed) or 'none' (nothing matched — see `note` for suggestions). |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
No examples provided.
is_holiday_today ~98
Is today a school or public holiday in the given canton? <use_case>One-call convenience for the everyday 'are we off today?' question in a given canton.</use_case> Convenience wrapper over `check_date` for the everyday question "are we off today?".
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | ISO code, e.g. CH-ZH |
| language | string | – | – |
| school_type | – | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | – |
| checked_date | string | yes | – |
| is_public_holiday | boolean | yes | – |
| is_school_holiday | boolean | yes | – |
| matches | array | yes | – |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
No examples provided.
list_cantons ~88
List the 26 Swiss cantons with their ISO subdivision codes. <use_case>Resolve a canton name to the CH-XX code every other tool needs; call this first when the user gives a canton by name.</use_case> Use this first to resolve a canton name to the `CH-XX` code that every other tool expects.
| Name | Type | Req | Description |
|---|---|---|---|
| language | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| cantons | array | yes | – |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
No examples provided.
list_school_types ~139
List the Schularten (school types) that publish separate holiday tables. <use_case>Discover whether a canton differentiates school holidays by Schulart before querying, so VS/MS/BS/EO filters are used only where they exist.</use_case> Only a minority of cantons differentiate. For Zurich the codes are `CH-ZH-VS` (Volksschulen), `CH-ZH-MS` (Mittelschulen) and `CH-ZH-BS` (Berufsfachschulen). Cantons absent from this list publish one table for all school types.
| Name | Type | Req | Description |
|---|---|---|---|
| canton | – | – | – |
| language | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| school_types | array | yes | – |
| source | string | yes | Attribution string of the upstream source. |
No examples provided.
next_school_holidays ~89
Return the next upcoming school holiday periods for a canton. <use_case>Forward-looking planning: the next N school-holiday periods for a canton from today, without computing a date range by hand.</use_case>
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | ISO code, e.g. CH-ZH |
| count | integer | – | – |
| language | string | – | – |
| school_type | – | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| holidays | array | yes | – |
| match_type | string | – | How the lookup key resolved (audit ARCH-003): 'exact' (code or full name / validated canton), 'fuzzy' (a single prefix match was assumed) or 'none' (nothing matched — see `note` for suggestions). |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
No examples provided.
source_status ~82
Report reachability and latency of both upstream sources. <use_case>Health check before a batch of queries, or to distinguish 'no data' from 'source down' — always returns an evaluable status.</use_case> Always returns an evaluable status rather than an empty result set, so that "no data" can be distinguished from "source down".
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| all_healthy | boolean | yes | – |
| mcp_protocol_version | string | yes | MCP wire protocol version this server is built and tested against. |
| note | – | – | Human-readable caveat, set when provenance is 'degraded'. |
| provenance | string | yes | live_api = freshly fetched, cached = in-memory cache, degraded = upstream unreachable, stale or empty payload. |
| retrieved_at | string | yes | ISO-8601 UTC timestamp of the underlying fetch. |
| source | string | yes | Attribution string of the upstream source. |
| sources | array | yes | – |
No examples provided.
What is the io.github.malkreide/swiss-holidays-mcp server?
io.github.malkreide/swiss-holidays-mcp is listed in the public MCP registry as io.github.malkreide/swiss-holidays-mcp. Swiss school & public holidays, 26 cantons, by Schulart (OpenHolidays + Nager.Date). This page covers its PyPI package (swiss-holidays-mcp).
Is the io.github.malkreide/swiss-holidays-mcp server safe to use?
io.github.malkreide/swiss-holidays-mcp scores 65 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. 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 io.github.malkreide/swiss-holidays-mcp server expose?
io.github.malkreide/swiss-holidays-mcp exposes 13 tools: list_cantons, list_school_types, get_school_holidays, get_public_holidays, get_local_holidays, and 8 more. Their descriptions and schemas cost roughly 1,791 tokens of context every time the server is loaded.
Is the io.github.malkreide/swiss-holidays-mcp server still maintained?
io.github.malkreide/swiss-holidays-mcp is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.malkreide/swiss-holidays-mcp server under?
io.github.malkreide/swiss-holidays-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.