UAParse
Parse a User-Agent: browser, OS, device, plus bot, search crawler, AI crawler and AI agent flags.
使うべきか
品質と安全性
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"uaparse": {
"url": "https://uaparse.mike-tusa.workers.dev/mcp"
}
}
}リモートエンドポイント
https://uaparse.mike-tusa.workers.dev/mcpstreamable-httpできること
ツール一覧
ツール（1）
🟢parse_user_agent(ua, include_raw)
Parse one User-Agent string. Returns browser, engine, OS, device type and CPU (ua-parser-js 1.0.41), and whether it is a known bot, search crawler, AI crawler (with its AI purpose) or an AI agent acting for a user (is_ai_agent, ai_agent_kind fetch | browsing), plus the bot name, operator, robots.txt token and operator docs link from a curated list of 151 bots (list 2026-10-08). verified is always false: the User-Agent is self-reported and UAParse does no IP or reverse-DNS checks. Read-only, no network lookups. Same engine and limits as the UAParse JSON API (POST /v1/parse); each call is one lookup. UAParse is independent and not affiliated with Meta, OpenAI, Google, Anthropic, Amazon, Perplexity or Mistral AI.
入力スキーマ
{
"type": "object",
"properties": {
"ua": {
"type": "string",
"minLength": 1,
"maxLength": 2048,
"description": "The User-Agent string to parse, exactly as sent in the User-Agent header."
},
"include_raw": {
"type": "boolean",
"default": false,
"description": "Also return the full POST /v1/parse JSON in structuredContent.raw. Larger output."
}
},
"required": [
"ua"
],
"additionalProperties": false
}出力スキーマ
{
"type": "object",
"properties": {
"ua": {
"type": "string",
"description": "The parsed User-Agent (clipped to 300 characters; see ua_length)"
},
"ua_length": {
"type": "integer"
},
"browser": {
"type": "object",
"properties": {
"name": {
"type": "string"
},
"version": {
"type": "string"
},
"major": {
"type": "string"
}
}
},
"engine": {
"type": "object",
"properties": {
"name": {
"type": "string"
},
"version": {
"type": "string"
}
}
},
"os": {
"type": "object",
"properties": {
"name": {
"type": "string"
},
"version": {
"type": "string"
}
}
},
"device": {
"type": "object",
"properties": {
"type": {
"type": "string",
"description": "desktop, mobile, tablet, smarttv, console, wearable, xr, embedded, bot or unknown"
},
"vendor": {
"type": "string"
},
"model": {
"type": "string"
}
},
"required": [
"type"
]
},
"cpu": {
"type": "object",
"properties": {
"architecture": {
"type": "string"
}
}
},
"is_bot": {
"type": "boolean"
},
"is_ai_crawler": {
"type": "boolean"
},
"is_ai_agent": {
"type": "boolean",
"description": "true only for User-Agents the operator documents as acting live for an individual user"
},
"is_search_crawler": {
"type": "boolean"
},
"bot": {
"type": "object",
"description": "Present when is_bot is true. Fields that are unknown are omitted.",
"properties": {
"name": {
"type": "string"
},
"operator": {
"type": "string"
},
"category": {
"type": "string"
},
"category_label": {
"type": "string"
},
"ai_purpose": {
"type": "string",
"enum": [
"training",
"search",
"user_fetch",
"agent"
]
},
"ai_agent_kind": {
"type": "string",
"enum": [
"fetch",
"browsing"
]
},
"robots_token": {
"type": "string"
},
"token_only": {
"type": "boolean"
},
"info_url": {
"type": "string",
"description": "Operator documentation"
},
"match": {
"type": "string",
"enum": [
"list",
"heuristic"
]
},
"verified": {
"type": "boolean",
"description": "Always false"
}
},
"required": [
"category",
"match",
"verified"
]
},
"summary": {
"type": "string",
"description": "One-line plain-English verdict"
},
"list_version": {
"type": "string"
},
"parser": {
"type": "string"
},
"cached": {
"type": "boolean"
},
"tier": {
"type": "string",
"enum": [
"anonymous",
"free",
"pro"
]
},
"version": {
"type": "string"
},
"raw": {
"type": "object",
"description": "Full POST /v1/parse response (only when include_raw is true)"
}
},
"required": [
"ua",
"ua_length",
"browser",
"engine",
"os",
"device",
"cpu",
"is_bot",
"is_ai_crawler",
"is_ai_agent",
"is_search_crawler",
"summary",
"list_version",
"version"
]
}コミュニティ
エビデンス