# Formosa MCP — Taiwan data (npm · formosa-mcp)

Taiwan data for AI agents: THSR/TRA timetables, TWSE/TPEx stocks, invoice lottery, garbage, outages

- Trust score: 69/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `formosa-mcp.ycsmiley.workers.dev`: 58/100, [markdown](https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp.md), [page](https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp)
- npm · `formosa-mcp`: 69/100 (this document), [markdown](https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp-2.md), [page](https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp-2)

## Channel facts

- Registry: `npm`
- Package: `formosa-mcp`
- Version: `0.2.0`
- 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 2026-11-05.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 30 of 92 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 48/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 1 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 508 tokens (~84/item across 6 items; 6 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 90/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 69% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 6 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.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the Formosa MCP — Taiwan data server?

Formosa MCP — Taiwan data runs locally as an npm package, launched with npx -y formosa-mcp. 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 ycsmiley-formosa-mcp -- npx -y formosa-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "ycsmiley-formosa-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "formosa-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ycsmiley-formosa-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "formosa-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add ycsmiley-formosa-mcp -- npx -y formosa-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add ycsmiley-formosa-mcp --command npx --arg -y --arg formosa-mcp
```

### Hermes

```yaml
mcp_servers:
  ycsmiley-formosa-mcp:
    command: "npx"
    args: ["-y", "formosa-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "ycsmiley-formosa-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "formosa-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add ycsmiley-formosa-mcp -t stdio -c npx -a -y formosa-mcp
```

### Other

```json
{
  "mcpServers": {
    "ycsmiley-formosa-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "formosa-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-11-05 (score 69, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-11-04 (score 54)

First indexed and scored.

## MCP tools (6)

### `invoice_get_winning_numbers` (~48 tokens)

查詢統一發票中獎號碼與領獎期間。Get Taiwan invoice winning numbers; omit period for the latest draw.

Input parameters:

- `period` (string)

### `invoice_check` (~67 tokens)

統一發票對獎；未指定期別時檢查最新一期與仍可領獎的前一期。Check a Taiwan invoice number; 3–7 digits only check sixth prizes.

Input parameters:

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

### `stock_quote` (~65 tokens)

以股票代號或名稱查詢上市／上櫃盤後行情、本益比與殖利率，非即時。Taiwan TWSE/TPEx end-of-day quote by code or name, not real-time.

Input parameters:

- `query` (string, required)

### `stock_dividends` (~59 tokens)

查詢上市／上櫃近期除權息日程，可指定股票代號或名稱。Upcoming Taiwan TWSE/TPEx ex-dividend and ex-right dates; optional code or name.

Input parameters:

- `query` (string)

### `garbage_schedule` (~116 tokens)

查詢新北市、臺北市、臺中市垃圾車定點收運時刻。

Input parameters:

- `city` (string, required): 城市名稱
- `district` (string): 行政區；關鍵字包含行政區時可省略
- `keyword` (string): 里、路名或地點
- `time` (string): HH:MM，只顯示此時間及之後的收運點
- `weekday` (string): 今天、明天或週一至週日

### `outage_schedule` (~153 tokens)

查詢計畫性停水、停電公告；緊急搶修、事故、颱風造成的停水停電不會事先公告。Planned water/power outages only.

Input parameters:

- `city` (string, required): 縣市名稱
- `district` (string): 行政區名稱
- `end_date` (string): 迄日 YYYY-MM-DD，預設今天加六天；最多 31 天
- `keyword` (string): 路名或地區關鍵字
- `start_date` (string): 起日 YYYY-MM-DD，預設臺北時間今天
- `type` (string): 停水、停電或全部

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp-2#diagnostics

## Score history

- 2026-11-05: 69
- 2026-11-04: 54

## Common questions

### What is the Formosa MCP — Taiwan data server?

Formosa MCP — Taiwan data is listed in the public MCP registry as io.github.ycsmiley/formosa-mcp. Taiwan data for AI agents: THSR/TRA timetables, TWSE/TPEx stocks, invoice lottery, garbage, outages. This page covers its npm package (formosa-mcp).

### Is the Formosa MCP — Taiwan data server safe to use?

Formosa MCP — Taiwan data scores 69 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. 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 Formosa MCP — Taiwan data server expose?

Formosa MCP — Taiwan data exposes 6 tools: invoice_get_winning_numbers, invoice_check, stock_quote, stock_dividends, garbage_schedule, outage_schedule. Their descriptions and schemas cost roughly 508 tokens of context every time the server is loaded.

### Is the Formosa MCP — Taiwan data server still maintained?

Formosa MCP — Taiwan data is still listed as active in the MCP registry. We last reached this channel on 5 November 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 Formosa MCP — Taiwan data server under?

Formosa MCP — Taiwan data declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/formosa-mcp
- Socket report: https://socket.dev/npm/package/formosa-mcp
- Repository: https://github.com/ycsmiley/formosa-mcp
- Changelog RSS feed: https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp-2.xml
- Changelog JSON feed: https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp-2.json
- HTML version of this page: https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp-2