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TheSethRose

Fetch Browser

by TheSethRose
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TypeScript
Remote

ブラウザを取得

AIエージェントがAPIキーを必要とせずにウェブコンテンツを取得し、Google検索を実行できる、強力なヘッドレスブラウザMCPサーバーです。最新のウェブ標準に準拠し、AIプラットフォームとのシームレスな統合を実現します。

特徴

  • APIキーは不要: 洗練されたヘッドレスブラウザアプローチを使用してコンテンツを直接取得します

  • スマートGoogle検索：

    • Google検索から構造化された結果を抽出する

    • ウェブとニュースの両方の検索結果をサポート

    • 設定可能な結果数（1～100）

    • 検索結果の完全なコンテンツ取得

    • 自動再試行とエラー処理

  • ユニバーサルコンテンツフェッチ:

    • あらゆるウェブページやAPIエンドポイントのサポート

    • 複数の出力形式（HTML、JSON、テキスト、マークダウン）

    • コンテンツタイプの自動検出

    • 応答サイズの制限とタイムアウト保護

    • レート制限保護

  • フォーマット変換:

    • クリーンなHTMLからMarkdownへの変換

    • きれいに印刷されたJSONレスポンス

    • 構造化されたHTML出力

    • 適切な書式のプレーンテキスト

Related MCP server: Local Browser MCP

ツール

1. Google 検索ツール ( google_search )

Google 検索を実行し、結果の完全なコンテンツを取得します。

{
  query: "your search query",
  responseType: "markdown", // or "json", "html", "text"
  maxResults: 10,          // 1-100 results
  topic: "web"            // or "news"
}

2. URLフェッチャーツール（ fetch_url ）

任意の URL からコンテンツを取得します。

{
  url: "https://example.com",
  responseType: "markdown", // or "json", "html", "text"
  timeout: 30000          // optional, in milliseconds
}

インストール

スミザリー経由

# For Claude
npx -y @smithery/cli install @TheSethRose/fetch-browser --client claude

# For Cursor
npx -y @smithery/cli install @TheSethRose/fetch-browser --client cursor

# For TypeScript
npx -y @smithery/cli install @TheSethRose/fetch-browser --client typescript

手動インストール

# Clone the repository
git clone https://github.com/TheSethRose/fetch-browser.git
cd fetch-browser

# Install dependencies
npm install

# Build the project
npm run build

# Start the server
npm start

発達

# Watch mode with auto-rebuild
npm run watch

# Run with inspector
npm run inspector

# Debug mode
npm run debug

# Debug with watch mode
npm run debug:watch

応答形式

1. マークダウン形式

## [Page Title](https://example.com)

Content converted to clean markdown with:
- Lists
- **Bold text**
- *Italic text*
- [Links](https://example.com)

2. JSON形式

{
  "url": "https://example.com",
  "content": "Extracted content...",
  "error": null
}

3. HTML形式

<div class="search-result">
  <h2><a href="https://example.com">Page Title</a></h2>
  <div class="content">
    Original HTML content
  </div>
</div>

4. テキスト形式

### https://example.com

Plain text content with preserved formatting
==========

エラー処理

  • 指数バックオフによる自動再試行

  • レート制限保護

  • タイムアウト処理

  • 詳細なエラーメッセージ

  • 個別結果エラー追跡

セキュリティ機能

  • レスポンスサイズの制限

  • リクエストタイムアウト

  • レート制限保護

  • APIキーやシークレットは不要

  • 適切なエラー処理

クレジット

セス・ローズ作：

ライセンス

MITライセンス - 詳細はライセンスを参照

Available Tools

2 tools
fetch_urlC

Fetch content from a URL with proper error handling and response processing

ParametersJSON Schema
NameRequiredDescriptionDefault
urlYesThe URL to fetch
responseTypeNoExpected response typetext
timeoutNoRequest timeout in milliseconds

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'proper error handling and response processing', which hints at robustness, but lacks specifics on authentication needs, rate limits, retry behavior, or what constitutes 'proper' processing. This is insufficient for a tool that interacts with external URLs.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence that front-loads the core purpose. However, it could be more structured by separating purpose from behavioral claims, and the phrase 'proper error handling and response processing' is somewhat vague and could be tightened.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the complexity of fetching from URLs (potential for errors, varied content types) and the absence of annotations and output schema, the description is incomplete. It doesn't cover return values, error formats, or detailed behavioral traits needed for reliable use by an AI agent.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all parameters thoroughly. The description adds no additional meaning about parameters beyond what's in the schema, such as explaining the implications of different response types or timeout values. Baseline 3 is appropriate when the schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('fetch content from a URL') and resource ('URL'), making the purpose immediately understandable. However, it doesn't explicitly differentiate from the sibling tool 'google_search', which likely serves a different purpose (searching vs. direct fetching).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives like 'google_search'. It mentions 'proper error handling and response processing' but doesn't specify scenarios, prerequisites, or exclusions for usage.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 2 tool updates
    • First observedfetch_url
    • First observedgoogle_search
Deploy Server
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TDQS

B3.1/5.0

Scored across 2 tools

Disambiguation5/5

The two tools have clearly distinct purposes: fetch_url retrieves content from a specific URL, while google_search performs web searches and returns results. There is no overlap in functionality, making it easy for an agent to choose the correct tool based on the task.

Naming Consistency4/5

Both tools follow a verb_noun pattern (fetch_url, google_search), which is consistent and predictable. The minor deviation is that google_search includes a brand name, but this does not break the overall naming convention.

Tool Count3/5

With only 2 tools, the server feels thin for a browser-related purpose, as it lacks common operations like navigating pages, handling cookies, or interacting with web elements. However, the tools provided are core functionalities, so it's borderline appropriate.

Completeness2/5

For a browser server, there are significant gaps in coverage, such as no tools for page navigation, form submission, JavaScript execution, or session management. The surface is severely incomplete for typical browser automation tasks, limiting agent effectiveness.

Maintenance

ActivityInactive
ResponsivenessUnresponsive

Resources

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