# Zippa（ジッパ） (remote · mcp.yomitasu.jp)

サイトの表示速度を、JavaScript のタグを 1 本貼るだけで改善するサービスです。（zippa.jp の内容を検索して答える。ヨミタス経由）

- Trust score: 71/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-28

## Components

- remote · `mcp.yomitasu.jp`: 71/100 (this document), [markdown](https://verifymcp.io/servers/jp-yomitasu-zippa-jp/s-zippa-jp-mcp.md), [page](https://verifymcp.io/servers/jp-yomitasu-zippa-jp/s-zippa-jp-mcp)

## Channel facts

- Endpoint: `https://mcp.yomitasu.jp/s/zippa-jp/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.1`

## 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**: 74/100
  - 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 is enforced; there's no plaintext access path.
  - 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**: 71/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 898 tokens (~149/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 10/100
  - Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 88/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 57% of tool parameters carry a description.
  - Structured output schemas are declared (33% 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 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 7 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 Zippa（ジッパ） MCP server?

Zippa（ジッパ） is a hosted endpoint at https://mcp.yomitasu.jp/s/zippa-jp/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 jp-yomitasu-zippa-jp 'https://mcp.yomitasu.jp/s/zippa-jp/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "jp-yomitasu-zippa-jp": {
      "url": "https://mcp.yomitasu.jp/s/zippa-jp/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "jp-yomitasu-zippa-jp": {
      "type": "http",
      "url": "https://mcp.yomitasu.jp/s/zippa-jp/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.jp-yomitasu-zippa-jp]
url = "https://mcp.yomitasu.jp/s/zippa-jp/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "jp-yomitasu-zippa-jp": {
      "type": "remote",
      "url": "https://mcp.yomitasu.jp/s/zippa-jp/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add jp-yomitasu-zippa-jp --url 'https://mcp.yomitasu.jp/s/zippa-jp/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  jp-yomitasu-zippa-jp:
    url: "https://mcp.yomitasu.jp/s/zippa-jp/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "jp-yomitasu-zippa-jp": {
      "Transport": "http",
      "Url": "https://mcp.yomitasu.jp/s/zippa-jp/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add jp-yomitasu-zippa-jp -t streamable-http -u 'https://mcp.yomitasu.jp/s/zippa-jp/mcp'
```

### Other

```json
{
  "mcpServers": {
    "jp-yomitasu-zippa-jp": {
      "type": "http",
      "url": "https://mcp.yomitasu.jp/s/zippa-jp/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.

### 2026-09-28 (score 71, +1)

- [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, +7)

- [security improvement] Authorization: unverified → partial
- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “get_page” rewrote its description, which is the text the model reads
- [security] Tool “search_pages” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 591 → 898
- [functional improvement] Tool coverage: 40% → 57%
- [functional] First check of Tool coverage: 33
- [functional] New tool “fetch”
- [functional] New tool “search”
- [cosmetic] Tool “get_page” changed its title: ページの中身を読む → ページの中身を読む（以前の名前）
- [cosmetic] Tool “search_pages” changed its title: サイトの中を探す → サイトの中を探す（以前の名前）

### 2026-09-26 (score 63, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-25 (score 62)

First indexed and scored.

## MCP tools (6)

### `search` (~182 tokens)

サイトの中を探す

「Zippa（ジッパ）」のページから、言葉に当てはまる箇所を抜粋つきで探します。Zippa は、計測タグを 1 本貼るだけでサイトの表示速度を改善する無料のサービスです。高速化の機能、無料スピード計測、管理画面の使い方と数字の読み方（操作マニュアル）、お知らせ、利用規約、プライバシーポリシー、運営会社を探せます。Zippa やサイトの表示速度の改善について質問されたら、まずこれを使ってください。言い換え（値段→価格・料金など）にも対応します。

Input parameters:

- `query` (string, required): 探したい言葉（例: 料金 支払い方法）

Output parameters:

- `results` (array)

### `fetch` (~116 tokens)

ページの中身を読む

「Zippa（ジッパ）」のページの本文を、最初から最後まで返します。高速化の機能の一覧、操作マニュアルの手順、利用規約やプライバシーポリシーの条文を、言い換えずに正確に確かめるときに使います。

Input parameters:

- `id` (string, required): 探した結果の id（ページの URL）。ページの URL かパスでも可（日本語のままでも可）

Output parameters:

- `id` (string)
- `metadata` (object)
- `text` (string)
- `title` (string)
- `url` (string)

### `list_pages` (~134 tokens)

どんなページがあるか見る

「Zippa（ジッパ）」に読み込まれているページの一覧（タイトルと URL）を返します。トップ（/）は高速化の機能の紹介、/speed-check/ は無料スピード計測、/manual/ は操作マニュアル、/mission/ は Zippa への思い、/news/ の下はお知らせ、/terms/・/privacy/ は規約と方針、/company/・/operator/ は運営会社と運営者です。

Input parameters:

- `limit` (integer)
- `offset` (integer)

### `site_overview` (~106 tokens)

サイトの概要を知る

「Zippa（ジッパ）」の概要を返します。計測タグを 1 行貼るだけで、次のページの先読みや画像の遅延読み込みなど 14 種類の高速化が自動で効き、その効果を「あり・なし」を比べる実測で確かめられる無料のサービスです。どんなサービスかを最初に知りたいときに使います。

### `search_pages` (~104 tokens)

サイトの中を探す（以前の名前）

「Zippa（ジッパ）」（zippa.jp）の以前の名前の機能です（すでにつないでいる人のために残しています）。search と同じようにサイトの中を探しますが、返す形が違います。新しく使うときは search を使ってください。

Input parameters:

- `limit` (integer)
- `query` (string, required): 探したい言葉（例: 料金 支払い方法）

### `get_page` (~99 tokens)

ページの中身を読む（以前の名前）

「Zippa（ジッパ）」（zippa.jp）の以前の名前の機能です（すでにつないでいる人のために残しています）。fetch と同じようにページの本文を返しますが、返す形が違います。新しく使うときは fetch を使ってください。

Input parameters:

- `url` (string, required): ページの URL かパス（日本語のままでも可）

## Diagnostics

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

## Score history

- 2026-09-28: 71
- 2026-09-27: 70
- 2026-09-26: 63
- 2026-09-25: 62

## Common questions

### What is the Zippa（ジッパ） MCP server?

Zippa（ジッパ） is an MCP server listed in the public MCP registry as jp.yomitasu/zippa-jp. サイトの表示速度を、JavaScript のタグを 1 本貼るだけで改善するサービスです。（zippa.jp の内容を検索して答える。ヨミタス経由）. This page covers its hosted endpoint (https://mcp.yomitasu.jp/s/zippa-jp/mcp).

### Is the Zippa（ジッパ） MCP server safe to use?

Zippa（ジッパ） scores 71 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 Zippa（ジッパ） MCP server expose?

Zippa（ジッパ） exposes 6 tools: search, fetch, list_pages, site_overview, search_pages, get_page. Their descriptions and schemas cost roughly 741 tokens of context every time the server is loaded.

### Does the Zippa（ジッパ） MCP server require authentication?

No. We connected to Zippa（ジッパ） without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Zippa（ジッパ） MCP server still maintained?

Zippa（ジッパ） 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://mcp.yomitasu.jp/s/zippa-jp/mcp
- Website: https://www.yomitasu.jp/sites/zippa-jp/
- Changelog RSS feed: https://verifymcp.io/servers/jp-yomitasu-zippa-jp/s-zippa-jp-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/jp-yomitasu-zippa-jp/s-zippa-jp-mcp.json
- HTML version of this page: https://verifymcp.io/servers/jp-yomitasu-zippa-jp/s-zippa-jp-mcp