# Holidays MCP (remote · ads.getlulu.dev)

Free, keyless public holidays lookup for any country and year, plus single-date holiday checks.

- Trust score: 55/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-09

## Components

- remote · `ads.getlulu.dev`: 55/100 (this document), [markdown](https://verifymcp.io/servers/lulu-the-narwhal-holidays-mcp/holidays-mcp.md), [page](https://verifymcp.io/servers/lulu-the-narwhal-holidays-mcp/holidays-mcp)

## Channel facts

- Endpoint: `https://ads.getlulu.dev/holidays/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.1`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-09.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 2 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 45/100
  - 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 289 tokens (~57/item across 5 items; 2 tools + 3 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 7/100
  - Stability observed for 2 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.
  - Supports UI / widget rendering.

## Install

### Claude

```bash
claude mcp add --transport http lulu-the-narwhal-holidays-mcp https://ads.getlulu.dev/holidays/mcp
```

### Codex

```toml
[mcp_servers.lulu-the-narwhal-holidays-mcp]
url = "https://ads.getlulu.dev/holidays/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "lulu-the-narwhal-holidays-mcp": {
      "type": "remote",
      "url": "https://ads.getlulu.dev/holidays/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add lulu-the-narwhal-holidays-mcp --url https://ads.getlulu.dev/holidays/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  lulu-the-narwhal-holidays-mcp:
    url: "https://ads.getlulu.dev/holidays/mcp"
```

### Other

```json
{
  "mcpServers": {
    "lulu-the-narwhal-holidays-mcp": {
      "type": "http",
      "url": "https://ads.getlulu.dev/holidays/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-09 (score 55, +1)

- [functional improvement] Schema quality: 90 → 57
- [functional] New resource “result_widget_get_public_holidays”
- [functional] New resource “result_widget_is_public_holiday”

### 2026-08-08 (score 54, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-08-07 (score 54)

First indexed and scored.

## MCP tools (2)

### `get_public_holidays` (~137 tokens)

Full list of official public holidays for a country in a given
year. Use for "what are the holidays in Germany in 2026", planning
around a country's holiday calendar, or any "list the holidays for X"
question. `country_code` is a 2-letter ISO code (US, GB, DE, FR, JP,
...) -- roughly 100 countries are covered, not every country
worldwide. Returns each holiday's date, local name, English name, and
type (e.g. Public, Bank, Observance).

Input parameters:

- `country_code` (string, required)
- `year` (integer, required)

### `is_public_holiday` (~129 tokens)

Checks whether one specific date is a public holiday in a country,
and names it if so. Use for "is Dec 25 2026 a holiday in the US",
"is the office closed on this date", or any single-date holiday check
\-- prefer this over `get_public_holidays` when the question is about
just one day. `country_code` is a 2-letter ISO code; `date` is
YYYY-MM-DD. Returns whether it's a holiday and, if so, its name.

Input parameters:

- `country_code` (string, required)
- `date` (string, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/lulu-the-narwhal-holidays-mcp/holidays-mcp#diagnostics

## Score history

- 2026-08-09: 55
- 2026-08-08: 54
- 2026-08-07: 54

## Links

- Remote endpoint: https://ads.getlulu.dev/holidays/mcp
- Repository: https://github.com/Lulu-The-Narwhal/lulu-platform
- Changelog RSS feed: https://verifymcp.io/servers/lulu-the-narwhal-holidays-mcp/holidays-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/lulu-the-narwhal-holidays-mcp/holidays-mcp.json
- HTML version of this page: https://verifymcp.io/servers/lulu-the-narwhal-holidays-mcp/holidays-mcp