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mcp-web-calc

LM Studio MCP server: web search (DuckDuckGo HTML + Playwright), Wikipedia, URL extract, and a precise calculator no API keys.

Install / Use

claude mcp add khanhs-234 -- npx -y github:khanhs-234/mcp-web-calc

If the server publishes to npm under a different name, use that package instead — check the repo README.

About this skill
🔌

MCP Server

Model Context Protocol server

Quality Score

68/100

Supported Platforms

Claude Code
Claude Desktop

Tags

Our assessment of mcp-web-calc

mcp-web-calc scores 68/100 on our quality scale, 3852nd of 4,614 Development & Engineering skills we index.

Its MCP Server is 5.2 KB long, well organised into 17 sections with 19 code examples: a solid amount of guidance for an agent.

It has 3 GitHub stars, so there is little community track record yet; judge it on its content.

Substance
26/30
Structure
20/20
Description
15/15
Adoption
3/20
Freshness
5/15

Maintenance, license and trust

  • The repository was last updated about 13 months ago. Expect some instructions to reference tool versions or APIs that have since changed.
  • Our last check on 2026-10-19 found the source still online.
  • It is released under the MIT license, a permissive license that allows use, modification and commercial use with attribution.
  • Its trust signals score 80/100, with 2 cautions from licensing, adoption, age or documentation. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.

Safety scan

No issues found

Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful.

AI review by kimi-k2.7-code on 2026-09-24. Automated pattern scan on 2026-09-24. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.

mcp-web-calc compared with similar skills

All 4 of these similar skills score higher than mcp-web-calc; compare them before choosing.

SkillScoreStarsUpdatedFormat
mcp-web-calc (this skill)by khanhs-23468313mo agoMCP Server
taste-skillby Leonxlnx100111.0k1d agoCLAUDE.md
Agent-Reachby Panniantong100109.5k1d agoCLAUDE.md
headroomby headroomlabs-ai10079.0ktodayCLAUDE.md
ai-job-searchby ai-job-search-dev10070.0ktodayCLAUDE.md

Frequently asked questions

How do I install mcp-web-calc?
Run claude mcp add khanhs-234 -- npx -y github:khanhs-234/mcp-web-calc. The install tabs above show the steps for each supported agent.
Which AI agents does mcp-web-calc work with?
It is written for Claude Code and Claude Desktop, as a MCP Server file. Other agents that read the same format can often use it too.
Is mcp-web-calc safe to use?
Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful. It is MIT-licensed and scores 80/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
Is mcp-web-calc still maintained?
The repository was last updated about 13 months ago. Expect some instructions to reference tool versions or APIs that have since changed.

mcp-web-calc — MCP server cho LM Studio (không cần API key)

Phiên bản: 0.3.0

6 công cụ tích hợp

  • search_web — Tìm web hai tầng (Nhanh: DuckDuckGo HTML → Sâu: Playwright/Bing)
  • fetch_url — Tải & trích xuất nội dung từ URL/HTML/PDF (Readability + pdf-parse)
  • summarize_url — Lấy nội dung từ URL rồi tóm tắt ngắn gọn
  • math_eval — Máy tính chính xác (Number / BigNumber / Fraction)
  • wiki_get — Lấy tóm tắt 1 trang Wikipedia theo ngôn ngữ
  • wiki_multi — Lấy tóm tắt Wikipedia theo nhiều ngôn ngữ trong một lần gọi

Không dùng API key. Hoạt động hoàn toàn qua MCP/stdio.


Yêu cầu

  • Node.js 18+
  • Windows/macOS/Linux
  • (Tìm kiếm sâu) Playwright Chromium

Cài đặt

npm i
npx playwright install chromium   # cần cho 'deep' (Bing/Playwright)
# Dev:
npm run dev
# hoặc build & chạy prod:
npm run build && npm run start

Biến môi trường (khuyến nghị)

Đặt trong LM Studio hoặc .env:

USER_AGENT=mcp-web-calc/0.3 (https://local)
HTTP_TIMEOUT=15000       # ms cho mọi yêu cầu mạng
MAX_RESULTS=10           # mặc định cho search_web
LANG_DEFAULT=vi          # ngôn ngữ mặc định
MAX_BYTES=20971520       # giới hạn tải 20MB cho fetch_url

Bảo vệ SSRF: fetch_url sẽ chặn localhost/127.0.0.1/::1/.local/.localhost.


Thêm MCP server trong LM Studio

Settings → Developer → Model Context Protocol (MCP) Servers → Add

  • Name: mcp-web-calc
  • Command: npm
  • Args: run, dev (hoặc start nếu đã build)
  • Working directory: đường dẫn tới thư mục dự án
  • Environment variables: như ở phần trên

Khi chạy thành công, log sẽ hiện: mcp-web-calc ready (stdio)…


Công cụ & cú pháp (tool schema)

1) search_web

  • Input
{ 
  q: string;
  limit?: number;          // default: MAX_RESULTS (env), clamp 1..50
  lang?: string;           // "vi" | "en" | ...
  mode?: "fast"|"deep"|"auto"; // default: "auto"
}
  • Output (rút gọn)
{
  items: { title: string; url: string; snippet?: string; source: "ddg_html"|"bing_pw" }[];
  modeUsed: "fast"|"deep"|"auto";
  enginesUsed: ("ddg_html"|"bing_pw")[];
  escalated: boolean;      // auto có leo sang deep hay không
  diagnostics?: Record<string, unknown>;
}
  • Ví dụ
search_web: { "q": "Node.js LTS release schedule", "mode": "fast", "limit": 5, "lang": "vi" }

2) fetch_url

  • Input
{ url: string }  // hỗ trợ HTML & PDF
  • Output (rút gọn)
{
  text: string;
  url: string;
  title?: string;
  byline?: string;
  siteName?: string;
  lang?: string;
  length?: number; // nếu có
}
  • Ví dụ
fetch_url: { "url": "https://example.com" }

3) summarize_url

  • Input
{ url: string }
  • Hành vi
    • Lấy nội dung bằng fetch_url, sau đó thử gọi model phía server (nếu được LM Studio cấp) để tóm tắt ngắn gọn tiếng Việt.
    • Fallback: nếu không gọi được model, trả về tối đa ~2000 ký tự đầu của bài.
  • Ví dụ
summarize_url: { "url": "https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API" }

4) math_eval

  • Input
{
  expression: string;                      // cú pháp mathjs
  mode?: "number"|"BigNumber"|"Fraction";  // default: "BigNumber"
  precision?: number;                      // default: 64 (khi BigNumber)
}
  • Lưu ý
    • mathjs không có hàm integrate. Dùng derivative, simplify, ma trận, đơn vị, v.v.
    • Cần lượng giác? Dùng mode="number" để có sin/cos… chính xác kiểu số JS.
  • Ví dụ
math_eval: { "expression": "derivative(sin(x)*exp(x), x)", "mode": "number" }

5) wiki_get

  • Input
{ title: string; lang?: string /* default "vi" */ }
  • Output (rút gọn)
{ lang: string; title: string; url: string; description?: string; extract?: string; thumbnailUrl?: string }
  • Ví dụ
wiki_get: { "title": "Việt Nam", "lang": "vi" }

6) wiki_multi

  • Input
{
  term: string,                 // thuật ngữ gốc, ví dụ "Cá"
  baseLang?: string,            // mặc định "vi"
  langs?: string[]              // mặc định ["vi","en"]
}
  • Output (rút gọn)
{
  baseLang: string;
  base: { /* WikiSummary của baseLang */ };
  items: Record<string, WikiSummary | null>; // null nếu không tìm thấy
  resolved: Record<string, { title?: string; source: "base"|"langlinks"|"direct"|"none" }>
}
  • Ví dụ
wiki_multi: { "term": "Cá", "baseLang": "vi", "langs": ["vi","en","ja","fr"] }

Mẹo kiểm thử nhanh

search_web: { "q": "site:developer.apple.com App Intents", "mode": "deep", "limit": 5, "lang": "vi" }
fetch_url: { "url": "https://example.com" }
summarize_url: { "url": "https://www.python.org/dev/peps/pep-0008/" }
math_eval: { "expression": "inv([[1,2],[3,4]])", "mode": "number" }
wiki_get: { "title": "Lambda calculus", "lang": "en" }
wiki_multi: { "term": "Cá", "baseLang": "vi", "langs": ["vi","en","ja","fr"] }

Khắc phục sự cố

  • CAPTCHA / chặn tạm thời: giảm tần suất, ưu tiên mode="fast", thử lại sau vài phút.
  • Playwright chưa cài: npx playwright install chromium.
  • Timeout / treo khi tải: tăng HTTP_TIMEOUT, hoặc nội dung vượt MAX_BYTES.
  • URL nội bộ bị chặn: đây là chủ đích (SSRF guard).

Giấy phép

MIT — xem tệp LICENSE.

Related Skills

View on GitHub
GitHub Stars3
CategoryDevelopment
Updated1y ago
Forks1

Languages

TypeScript

Trust signals

80/100

From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.

1 medium1 low
mcp-web-calc — MCP Server: Install & Safety Check | SkillAgent