# Formosa MCP — Taiwan data (remote · formosa-mcp.ycsmiley.workers.dev)

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

- Trust score: 58/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `formosa-mcp.ycsmiley.workers.dev`: 58/100 (this document), [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, [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

- Endpoint: `https://formosa-mcp.ycsmiley.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.2.0`

## 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 2026-11-05.

- **Endpoint Security**: 46/100
  - 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 10 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 enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - 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**: 72/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 883 tokens (~88/item across 10 items; 10 tools + 0 resources), lean.
  - 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**: 83/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 50% 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 10 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

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

Formosa MCP — Taiwan data is a hosted endpoint at https://formosa-mcp.ycsmiley.workers.dev/mcp, 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 ycsmiley-formosa-mcp 'https://formosa-mcp.ycsmiley.workers.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "ycsmiley-formosa-mcp": {
      "url": "https://formosa-mcp.ycsmiley.workers.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ycsmiley-formosa-mcp": {
      "type": "http",
      "url": "https://formosa-mcp.ycsmiley.workers.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ycsmiley-formosa-mcp]
url = "https://formosa-mcp.ycsmiley.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ycsmiley-formosa-mcp": {
      "type": "remote",
      "url": "https://formosa-mcp.ycsmiley.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ycsmiley-formosa-mcp --url 'https://formosa-mcp.ycsmiley.workers.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ycsmiley-formosa-mcp:
    url: "https://formosa-mcp.ycsmiley.workers.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "ycsmiley-formosa-mcp": {
      "Transport": "http",
      "Url": "https://formosa-mcp.ycsmiley.workers.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ycsmiley-formosa-mcp -t streamable-http -u 'https://formosa-mcp.ycsmiley.workers.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "ycsmiley-formosa-mcp": {
      "type": "http",
      "url": "https://formosa-mcp.ycsmiley.workers.dev/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.

### 2026-11-05 (score 58, 0)

- [functional improvement] Stability: unverified → 0.03
- [functional] Server version: 0.1.0 → 0.2.0
- [functional] New tool “stock_market_summary”

### 2026-11-04 (score 58)

First indexed and scored.

## MCP tools (10)

### `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_market_summary` (~80 tokens)

查詢上市加權指數、上櫃指數收盤漲跌、成交金額與融資券餘額（張）。兩市場各有資料日期，盤後資料，非即時；無需參數。Taiwan market closing summary, separately dated TWSE and TPEx; not real-time.

### `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

### `thsr_timetable` (~114 tokens)

查高鐵某日起迄站時刻；站名或代碼，日期預設臺北今天，時間 HH:mm；24:00–29:59 表示營運日隔日凌晨。THSR OD timetable; optional date and departure time.

Input parameters:

- `date` (string)
- `destination` (string, required)
- `origin` (string, required)
- `time` (string): 時間 HH:mm；24:00–29:59 表示營運日隔日凌晨

### `tra_timetable` (~112 tokens)

查臺鐵某日起迄站時刻與車種；站名或代碼，日期預設臺北今天，時間 HH:mm；24:00–29:59 表示營運日隔日凌晨。TRA OD timetable with train types.

Input parameters:

- `date` (string)
- `destination` (string, required)
- `origin` (string, required)
- `time` (string): 時間 HH:mm；24:00–29:59 表示營運日隔日凌晨

### `tra_live` (~69 tokens)

查臺鐵車次目前位置與誤點，或車站即時看板；train_no、station 恰填一項。TRA live train position/delay or station board; provide exactly one argument.

Input parameters:

- `station` (string)
- `train_no` (string)

## Diagnostics

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

## Score history

- 2026-11-05: 58
- 2026-11-04: 58

## 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 hosted endpoint (https://formosa-mcp.ycsmiley.workers.dev/mcp).

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

Formosa MCP — Taiwan data scores 58 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 Formosa MCP — Taiwan data server expose?

Formosa MCP — Taiwan data exposes 10 tools: invoice_get_winning_numbers, invoice_check, stock_quote, stock_market_summary, stock_dividends, and 5 more. Their descriptions and schemas cost roughly 883 tokens of context every time the server is loaded.

### Does the Formosa MCP — Taiwan data server require authentication?

No. We connected to Formosa MCP — Taiwan data without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### 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.

## Links

- Remote endpoint: https://formosa-mcp.ycsmiley.workers.dev/mcp
- Repository: https://github.com/ycsmiley/formosa-mcp
- Changelog RSS feed: https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp.json
- HTML version of this page: https://verifymcp.io/servers/ycsmiley-formosa-mcp/formosa-mcp