# DatoQA — Official Public Holidays (remote · datoqa.bhazarstudio.workers.dev)

Government and OpenHolidays calendars: regional scope, multilingual names, dated sources and gaps.

- Trust score: 70/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-28

## Components

- remote · `datoqa.bhazarstudio.workers.dev`: 70/100 (this document), [markdown](https://verifymcp.io/servers/dev-workers-bhazarstudio-datoqa-official-public-holidays/mcp-holidays.md), [page](https://verifymcp.io/servers/dev-workers-bhazarstudio-datoqa-official-public-holidays/mcp-holidays)

## Channel facts

- Endpoint: `https://datoqa.bhazarstudio.workers.dev/mcp/holidays`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.6.4`

## 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 2026-09-28.

- **Endpoint Security**: 69/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 406, which proves neither a plaintext path nor enforcement.
  - The HSTS (Strict-Transport-Security) header is present.
  - 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**: 80/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 635 tokens (~127/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 3/100
  - Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the DatoQA — Official Public Holidays MCP server?

DatoQA — Official Public Holidays is a hosted endpoint at https://datoqa.bhazarstudio.workers.dev/mcp/holidays, 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.

### Claude

```bash
claude mcp add --transport http dev-workers-bhazarstudio-datoqa-official-public- 'https://datoqa.bhazarstudio.workers.dev/mcp/holidays'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-workers-bhazarstudio-datoqa-official-public-": {
      "url": "https://datoqa.bhazarstudio.workers.dev/mcp/holidays"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-workers-bhazarstudio-datoqa-official-public-": {
      "type": "http",
      "url": "https://datoqa.bhazarstudio.workers.dev/mcp/holidays"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-workers-bhazarstudio-datoqa-official-public-]
url = "https://datoqa.bhazarstudio.workers.dev/mcp/holidays"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-workers-bhazarstudio-datoqa-official-public-": {
      "type": "remote",
      "url": "https://datoqa.bhazarstudio.workers.dev/mcp/holidays",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-workers-bhazarstudio-datoqa-official-public- --url 'https://datoqa.bhazarstudio.workers.dev/mcp/holidays' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-workers-bhazarstudio-datoqa-official-public-:
    url: "https://datoqa.bhazarstudio.workers.dev/mcp/holidays"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-workers-bhazarstudio-datoqa-official-public-": {
      "Transport": "http",
      "Url": "https://datoqa.bhazarstudio.workers.dev/mcp/holidays"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-workers-bhazarstudio-datoqa-official-public- -t streamable-http -u 'https://datoqa.bhazarstudio.workers.dev/mcp/holidays'
```

### Other

```json
{
  "mcpServers": {
    "dev-workers-bhazarstudio-datoqa-official-public-": {
      "type": "http",
      "url": "https://datoqa.bhazarstudio.workers.dev/mcp/holidays"
    }
  }
}
```

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.

### 2026-09-28 (score 70, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-27 (score 70)

First indexed and scored.

## MCP tools (5)

### `catalog` (~79 tokens)

Get the scope, allowed tool names, source IDs, endpoint and access policy for this thematic MCP. Call with no arguments when setting up this connection; skip it when the desired data tool and inputs are known. Use the listed domain directories only to resolve missing identifiers or coverage. This static catalog does not guarantee current availability; inspect the data response status and freshness.

Output parameters:

- `available_records` (integer)
- `capabilities` (array)
- `independently_verified` (boolean): Official-source checks are not independent factual corroboration.
- `name` (string)
- `profile` (string)
- `title` (string)
- `tools` (array)
- `version` (string)

### `list_holiday_regions` (~78 tokens)

Discover available public-holiday calendars and exact region ids, published years, source kind and freshness. Includes FR/UK/HK government feeds and international OpenHolidays curated entries. Use when country/region/year coverage is unknown; otherwise call get_public_holidays directly. Configured calendars are not proof of available data. International coverage is incomplete.

Output parameters:

- `configured_regions` (array)
- `count_meaning` (string)
- `endpoint` (string)
- `independently_verified` (boolean): Official-source checks are not independent factual corroboration.
- `max_collection_age_seconds` (integer)
- `notice` (string)
- `refresh_interval_seconds` (integer)
- `region_count` (integer)
- `regions` (array)
- `source_event_count` (integer)

### `get_public_holidays` (~240 tokens)

Get published public-holiday entries for one calendar and year or exact inclusive local date. Use a known region id directly (fr-metropole, gb-england-and-wales, hk-general, oh-de); consult list_holiday_regions only if scope is unknown. OpenHolidays entries retain multilingual names, subdivisions and half-day scope; set nationwide_only=true to exclude regional entries. Government feeds and third-party curated calendars are explicitly distinguished. Empty results do not establish working days; future dates can change, and aggregator dates are not individually government-confirmed.

Input parameters:

- `date` (string): Exact local calendar date YYYY-MM-DD, for example 2026-12-28; cannot be combined with year.
- `nationwide_only` (boolean): For OpenHolidays country calendars, keep only entries marked nationwide by the source. Default false includes regional entries with their scopes. Government calendars retain their named territory sco…
- `region` (string, required): Calendar identifier from list_holiday_regions, for example gb-england-and-wales.
- `year` (integer): Calendar year; defaults to the current year. Only published years are available. Omit when date is supplied.

Output parameters:

- `available_years` (array)
- `directory` (string)
- `independently_verified` (boolean): Official-source checks are not independent factual corroboration.
- `items` (array)
- `notice` (string)
- `region` (string)
- `requested_date` (string|null)
- `returned` (integer): Domain-specific result count, not necessarily the number of stored records in items.
- `status` (string): Read this before using values; a successful transport does not establish data availability.
- `year` (integer)

### `get_record` (~60 tokens)

Get an unexpired record with provenance and its explicit verification level. Source/schema validation is not independent factual verification.

Input parameters:

- `id` (string, required): Opaque record id returned by a DatoQA data response. Reuse it exactly; do not invent an id.

Output parameters:

- `citation` (object)
- `data` (object): Source-specific payload; inspect units, observation dates, nulls and source notes.
- `display_label` (string)
- `domain` (string)
- `freshness` (object)
- `id` (string)
- `provenance` (object)

### `get_evidence` (~61 tokens)

Retrieve the source JSON snapshot and SHA-256 digest for a currently available record. The digest proves snapshot integrity, not factual truth.

Input parameters:

- `id` (string, required): Record id returned by a DatoQA data response; returns the retained source snapshot for that record.

Output parameters:

- `first_observed_at` (string)
- `hash_scope` (string)
- `notice` (string)
- `record_id` (string)
- `sha256` (string)
- `source_payload_json` (string)
- `source_url` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/dev-workers-bhazarstudio-datoqa-official-public-holidays/mcp-holidays#diagnostics

## Score history

- 2026-09-28: 70
- 2026-09-27: 70

## Common questions

### What is the DatoQA — Official Public Holidays MCP server?

DatoQA — Official Public Holidays is an MCP server listed in the public MCP registry as dev.workers.bhazarstudio.datoqa/official-public-holidays. Government and OpenHolidays calendars: regional scope, multilingual names, dated sources and gaps. This page covers its hosted endpoint (https://datoqa.bhazarstudio.workers.dev/mcp/holidays).

### Is the DatoQA — Official Public Holidays MCP server safe to use?

DatoQA — Official Public Holidays scores 70 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 DatoQA — Official Public Holidays MCP server expose?

DatoQA — Official Public Holidays exposes 5 tools: catalog, list_holiday_regions, get_public_holidays, get_record, get_evidence. Their descriptions and schemas cost roughly 518 tokens of context every time the server is loaded.

### Does the DatoQA — Official Public Holidays MCP server require authentication?

No. We connected to DatoQA — Official Public Holidays without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the DatoQA — Official Public Holidays MCP server still maintained?

DatoQA — Official Public Holidays is still listed as active in the MCP registry. We last reached this channel on 28 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://datoqa.bhazarstudio.workers.dev/mcp/holidays
- Website: https://datoqa.bhazarstudio.workers.dev/docs/holidays/
- Changelog RSS feed: https://verifymcp.io/servers/dev-workers-bhazarstudio-datoqa-official-public-holidays/mcp-holidays.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-workers-bhazarstudio-datoqa-official-public-holidays/mcp-holidays.json
- HTML version of this page: https://verifymcp.io/servers/dev-workers-bhazarstudio-datoqa-official-public-holidays/mcp-holidays