# Japan Weather & Alerts (remote · tenki-mcp.easakura.workers.dev)

Japan weather forecasts and disaster alerts from JMA: forecasts, warnings, and earthquake info.

- Trust score: 55/100 (low)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `tenki-mcp.easakura.workers.dev`: 62/100, [markdown](https://verifymcp.io/servers/easakura-japan-weather-alerts-mcp/tenki-mcp.md), [page](https://verifymcp.io/servers/easakura-japan-weather-alerts-mcp/tenki-mcp)
- remote · `tenki-mcp.easakura.workers.dev`: 55/100 (this document), [markdown](https://verifymcp.io/servers/easakura-japan-weather-alerts-mcp/tenki-mcp-2.md), [page](https://verifymcp.io/servers/easakura-japan-weather-alerts-mcp/tenki-mcp-2)

## Channel facts

- Endpoint: `https://tenki-mcp.easakura.workers.dev/sse`
- Transports: `sse`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-08-03.

- **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 3 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 check failed: the endpoint is reachable over plaintext HTTP.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 40/100
  - Verified sse transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 280 tokens (~93/item across 3 items; 3 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http easakura-japan-weather-alerts-mcp https://tenki-mcp.easakura.workers.dev/sse
```

### Codex

```toml
[mcp_servers.easakura-japan-weather-alerts-mcp]
url = "https://tenki-mcp.easakura.workers.dev/sse"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "easakura-japan-weather-alerts-mcp": {
      "type": "remote",
      "url": "https://tenki-mcp.easakura.workers.dev/sse",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add easakura-japan-weather-alerts-mcp --url https://tenki-mcp.easakura.workers.dev/sse --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  easakura-japan-weather-alerts-mcp:
    url: "https://tenki-mcp.easakura.workers.dev/sse"
```

### Other

```json
{
  "mcpServers": {
    "easakura-japan-weather-alerts-mcp": {
      "type": "http",
      "url": "https://tenki-mcp.easakura.workers.dev/sse"
    }
  }
}
```

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.

### 2026-08-03 (score 55, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-01 (score 54, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 53, −4)

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

### 2026-07-30 (score 57, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-29 (score 56, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 55, +1)

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

### 2026-07-26 (score 54)

First indexed and scored.

## MCP tools (3)

### `get_weather_forecast` (~113 tokens)

日本の天気予報を取得

気象庁公式データから指定地域の天気予報（今日・明日・明後日＋週間）を取得する。地域は都道府県名で指定（例: 東京都、大阪府、北海道は「石狩・空知・後志地方」等の予報区名）。

Input parameters:

- `area` (string, required): 都道府県・予報区名（例: 東京都 / 大阪府 / 沖縄本島地方）

### `get_weather_warnings` (~97 tokens)

気象警報・注意報を取得

指定地域に現在発表されている気象警報・注意報（大雨警報、洪水警報、雷注意報など）を気象庁公式データから取得する。防災判断・イベント開催判断・物流計画などに使う。

Input parameters:

- `area` (string, required): 都道府県・予報区名（例: 東京都 / 大阪府）

### `get_recent_earthquakes` (~70 tokens)

最近の地震情報を取得

日本で最近観測された地震の一覧（発生時刻・震源地・マグニチュード・最大震度）を気象庁公式データから取得する。

Input parameters:

- `max_results` (integer): 最大件数（1〜20）

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/easakura-japan-weather-alerts-mcp/tenki-mcp-2#diagnostics

## Score history

- 2026-08-03: 55
- 2026-08-02: 54
- 2026-08-01: 54
- 2026-07-31: 53
- 2026-07-30: 57
- 2026-07-29: 56
- 2026-07-28: 55
- 2026-07-27: 55
- 2026-07-26: 54

## Links

- Remote endpoint: https://tenki-mcp.easakura.workers.dev/sse
- Changelog RSS feed: https://verifymcp.io/servers/easakura-japan-weather-alerts-mcp/tenki-mcp-2/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/easakura-japan-weather-alerts-mcp/tenki-mcp-2/changelog.json
- HTML version of this page: https://verifymcp.io/servers/easakura-japan-weather-alerts-mcp/tenki-mcp-2