# io.github.qinisolabs/localecheck (npm · localecheck)

Verified locale data for AI agents: dates, phone, currency, tax, holidays, addresses (UK/US)

- Trust score: 66/100 (medium)
- Change this week: +24
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `localecheck`: 66/100 (this document), [markdown](https://verifymcp.io/servers/qinisolabs-localecheck/localecheck.md), [page](https://verifymcp.io/servers/qinisolabs-localecheck/localecheck)

## Channel facts

- Registry: `npm`
- Package: `localecheck`
- Version: `0.1.1`
- Transport: `stdio`

## Trust breakdown

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

Scored 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (111 of 115), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (111 of 115), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 48 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 653 tokens (~93/item across 7 items; 7 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add qinisolabs-localecheck -- npx -y localecheck
```

### Codex

```bash
codex mcp add qinisolabs-localecheck -- npx -y localecheck
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "qinisolabs-localecheck": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "localecheck"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add qinisolabs-localecheck --command npx --arg -y --arg localecheck
```

### Hermes

```yaml
mcp_servers:
  qinisolabs-localecheck:
    command: "npx"
    args: ["-y", "localecheck"]
```

### Other

```json
{
  "mcpServers": {
    "qinisolabs-localecheck": {
      "command": "npx",
      "args": [
        "-y",
        "localecheck"
      ]
    }
  }
}
```

## 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.

### 2026-08-03 (score 66, +4)

- [functional improvement] Stability: unverified → 0.23

### 2026-08-02 (score 62, +57)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional regression] Security disclosure: fail → unverified
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional] Licence: Apache-2.0

### 2026-08-01 (score 5, −13)

- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-07-31 (score 18, −24)

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

### 2026-07-27 (score 42)

First indexed and scored.

## MCP tools (7)

### `parse_date` (~110 tokens)

Convert a human-written date into ISO 8601 (YYYY-MM-DD). USE THIS whenever you need to interpret a date a person typed — especially ambiguous numeric dates like 03/04/2025, which mean different things in the UK (day-first) vs US (month-first) — before storing, scheduling, or acting on it. Pass locale 'en-GB' or 'en-US'. Returns valid:false for impossible dates.

Input parameters:

- `input` (string, required)
- `locale` (string)

### `validate_phone` (~88 tokens)

Validate a phone number and normalise it to E.164 (e.g. +442079460958). USE THIS before saving a phone number, dialling, or sending an SMS, instead of trusting raw input. Pass region 'GB' or 'US'. Returns valid:false if the number is not real for that region.

Input parameters:

- `number` (string, required)
- `region` (string)

### `format_currency` (~96 tokens)

Format a money amount the way a reader in a given locale expects (symbol position, decimal/thousands separators). USE THIS whenever you show a price/total to a user or put one in an email, invoice, or report. e.g. 1234.5 GBP en-GB -> '£1,234.50'.

Input parameters:

- `amount` (number, required)
- `currency` (string)
- `locale` (string)

### `tax_rate` (~118 tokens)

Look up the correct consumption-tax rate. USE THIS before calculating VAT or sales tax on an invoice or quote — never recall the rate from memory, it is DATE-SENSITIVE. GB returns the UK standard VAT rate that applied on the given date (handles historical/temporary changes). US has no national VAT (returns 0); pass a state code like 'CA' for the state base sales-tax rate. Always pass the invoice date for GB.

Input parameters:

- `country` (string)
- `date` (string)
- `state` (string)

### `is_holiday` (~95 tokens)

Check whether a date (YYYY-MM-DD) is a public/bank holiday. USE THIS when computing business-day deadlines, delivery SLAs, or 'next working day'. GB defaults to England; pass subdiv 'SCT'/'WLS'/'NIR' or a US state code. Country is GB or US.

Input parameters:

- `country` (string)
- `date` (string, required)
- `subdiv` (string)

### `next_holiday` (~81 tokens)

Find the next public/bank holiday on or after a date (default today). USE THIS to answer 'when is the next holiday' or find the next working day. Country is GB or US; subdiv narrows to a UK nation or US state.

Input parameters:

- `after` (string)
- `country` (string)
- `subdiv` (string)

### `parse_address` (~65 tokens)

Extract structured {country, postcode, city} from a free-text UK or US address. USE THIS when onboarding a user, running a KYC/fraud check, or storing an address, instead of splitting the string yourself. Returns a confidence flag.

Input parameters:

- `input` (string, required)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/qinisolabs-localecheck/localecheck#diagnostics

## Score history

- 2026-08-03: 66
- 2026-08-02: 62
- 2026-08-01: 5
- 2026-07-31: 18
- 2026-07-30: 42
- 2026-07-28: 42
- 2026-07-27: 42

## Links

- npm package: https://www.npmjs.com/package/localecheck
- Socket report: https://socket.dev/npm/package/localecheck
- Repository: https://github.com/qinisolabs/localecheck
- Changelog RSS feed: https://verifymcp.io/servers/qinisolabs-localecheck/localecheck/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/qinisolabs-localecheck/localecheck/changelog.json
- HTML version of this page: https://verifymcp.io/servers/qinisolabs-localecheck/localecheck