Grassy Knees

io.github.grassyknees由 GitHub 帳號 grassyknees 發布v0.2.0更新於 Oct 29, 2026

Real, source-checked kids' events and places in 42 US metros, linked to grassyknees.com.

已驗證STDIO僅桌面位置與生活網頁搜尋與抓取

概覽

AI 產生的概覽

唯讀 MCP 伺服器，讓助理從 Grassy Knees 目錄查找美國 42 個大都會區經來源查證的兒童活動、課程與場所。

可以做什麼
  • 列出涵蓋的 42 個大都會區，以及供其他工具使用的 id
  • 依時間範圍、類型、是否免費、年齡、類別或關鍵字搜尋單一大都會區的活動，並依時間先後排序
  • 用 grassyknees.com 連結或 id 取得單筆活動的時程、場地與適齡資訊
  • 取得某個大都會區或全部大都會區的季節性指南（萬聖節、聖誕、溜冰、復活節），以截斷的 Markdown 回傳
適用情境
適合使用者詢問美國某個大都會區帶小孩可以做什麼時使用，例如週末安排、免費活動、特定年齡的活動或季節性出遊，可提供含日期與地點的真實清單，而非泛泛建議。
執行需求
透過 npx 以 stdio 在本機執行，需要 Node.js 20 以上版本，也可使用 Docker 映像；不需要 API 金鑰或帳號。需要能連線 grassyknees.com；選用環境變數 GRASSYKNEES_ORIGIN 可指向其他部署。
安裝前請注意
為唯讀服務，只查詢公開端點，不會寫入網站任何內容。每次呼叫最多回傳 20 筆結果，並快取 10 分鐘；價格、名額、報名等資訊在連結的活動頁面上，使用前應至該頁確認。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 Grassy Knees，將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Desktop only，透過 STDIO。 STDIO 服務會啟動本機處理程序，因此需要 SourceWeft 桌面主機。

其他 MCP 客戶端

參照 儲存庫 中的啟動說明。

README

Grassy Knees MCP server

Website: https://grassyknees.com

A small, read-only Model Context Protocol server that lets AI assistants answer questions like "what can I do with my kids in Denver this weekend?" with real listings from Grassy Knees. Grassy Knees is a free directory of kids' and family events, classes and places across 42 US metro areas. Every listing is researched from the organizer's own page and shows the date it was last checked.

Every result says what the listing is, where and when, ages, and its grassyknees.com page URL. Price, availability, the last-checked date, registration, the organizer's links and contact details are on that page. Each call returns at most 20 listings.

Example prompts

Install

Requires Node.js 20 or later. No API key needed.

Claude Desktop

Add this to claude_desktop_config.json (Settings → Developer → Edit Config):

json
{  "mcpServers": {    "grassyknees": {      "command": "npx",      "args": ["-y", "grassyknees-mcp"]    }  }}

Claude Code

sh
claude mcp add grassyknees -- npx -y grassyknees-mcp

Cursor

Add this to ~/.cursor/mcp.json (or .cursor/mcp.json in a project):

json
{  "mcpServers": {    "grassyknees": {      "command": "npx",      "args": ["-y", "grassyknees-mcp"]    }  }}

Any other MCP client that runs stdio servers works the same way: the command is npx -y grassyknees-mcp.

Or with Docker: build the image with docker build -t grassyknees-mcp . and use docker run -i --rm grassyknees-mcp as the command.

Tools

ToolWhat it does
list_metrosThe 42 metro areas covered, with the id to pass to other tools (for example denver, new-york, washington-dc, dallas-fort-worth) and each metro's page URL.
search_activitiesSearch one metro. Filters: when (today, tomorrow, this-weekend, next-7-days, next-30-days) or start_date/end_date, kind (event, program, place, any), free_only, age, category, query (keywords), limit (1–20, default 10). Soonest first.
get_activityOne listing from its grassyknees.com URL or id: schedule, upcoming dates, venue, ages and its page URL.
seasonal_guideThe Halloween, Christmas (lights and holiday events), ice skating or Easter guide for a metro, or the all-metros overview, as Markdown trimmed to max_chars (default 8,000).

Dates are in the metro's local time. this-weekend means Friday to Sunday, the same window as the site's /<metro>/this-weekend page.

Sample transcript

From npm run smoke, run against the live site on 2026-10-28 (trimmed):

tools: list_metros, search_activities, get_activity, seasonal_guide
=== search_activities {"metro":"denver","when":"this-weekend","limit":3}60 events in Denver for this weekend (2026-10-30 to 2026-11-01); showing the first 3:
1. **[School's Out! Day: Pumpkins & Potions](https://grassyknees.com/denver/activities/school-s-out-day-pumpkins-and-potions--listing-023a33783babb5880fc24e03)**   Fri, Oct 30 · 8:30 AM–3:30 PM · JCC Denver (Staenberg-Loup Jewish Community Center), 350 S. Dahlia St., Denver, CO 80246   Ages 5+ · Arts & crafts
2. **[Rock Creek Farm Pumpkin Patch and Corn Maze](https://grassyknees.com/denver/activities/rock-creek-farm-pumpkin-patch-and-corn-maze--listing-69c7739ea9ac9cfaddb69622)**   Fri, Oct 30 · 9:30 AM–7:00 PM (also other dates) · Rock Creek Farm, 2005 S 112th St., Broomfield, CO 80020   Farm admission applies to ages 4 & up · Outdoors
3. **[JTML Hoppy Halloween Storytime](https://grassyknees.com/denver/activities/jtml-hoppy-halloween-storytime--listing-5ee8642f996422fe0023e407)**   Fri, Oct 30 · 10:00 AM–11:00 AM · John Tomay Memorial Library, 605 6th Street, Georgetown, CO 80444   Kids (event category) · Community
More on grassyknees.com: https://grassyknees.com/denver/this-weekend
=== search_activities {"metro":"DC","when":"this-weekend","free_only":true,"limit":3}20 events, free in Washington, DC for this weekend (2026-10-30 to 2026-11-01); showing the first 3:
1. **[Play Day in the Park at Black Hill Discovery Center](https://grassyknees.com/washington-dc/activities/play-day-in-the-park-at-black-hill-discovery-center--listing-c17ea7ba367fd70feca1648e)**   Fri, Oct 30 · 11:00 AM–12:00 PM (also other dates) · Black Hill Discovery Center, 20926 Lake Ridge Drive, Boyds, MD 20841   Ages 6 mos to 3 yrs · Outdoors...
=== get_activity {"url_or_id":"https://grassyknees.com/denver/activities/school-s-out-day-pumpkins-and-potions--listing-023a33783babb5880fc24e03"}# School's Out! Day: Pumpkins & Potions- When: Fri, Oct 30 · 8:30 AM–3:30 PM- Where: JCC Denver (Staenberg-Loup Jewish Community Center), 350 S. Dahlia St., Denver, CO 80246- Price, availability, registration, organizer links and contact: https://grassyknees.com/denver/activities/school-s-out-day-pumpkins-and-potions--listing-023a33783babb5880fc24e03...
=== seasonal_guide {"season":"ice-skating","metro":"denver","max_chars":1500}# Ice skating with kids in Denver> 9 ice rinks, public skates, holiday skate nights and learn-to-skate classes for kids in the Denver–Aurora–Centennial area this winter, ...[Trimmed to 1500 of 6484 characters. Full guide: https://grassyknees.com/denver/ice-skating (Markdown: https://grassyknees.com/denver/ice-skating.md)]

How it gets data

Read-only, public endpoints on grassyknees.com, one request at a time:

  • GET /api/activities?city=<metro>&fields=list for searches (one metro's current list, filtered and capped locally to 20 results),
  • GET /api/activities?ids=<id> for get_activity,
  • the site's Markdown pages (/<metro>/<season>.md) for seasonal_guide.

Responses are cached in memory for 10 minutes, so follow-up questions about the same metro don't refetch. Requests send User-Agent: grassyknees-mcp/<version>. Nothing is written to the site and no personal data is sent.

Set GRASSYKNEES_ORIGIN to point the server at another deployment (for testing).

Development

sh
npm installnpm run buildnpm run smoke            # calls each tool once against the live site (4 requests)npx @modelcontextprotocol/inspector --cli node dist/index.js --method tools/list

Credit

Data: Grassy Knees, grassyknees.com. When you show results, link to the listing's grassyknees.com page. Details can change, so check the listing page (it links the organizer's own page) before you go.

License

MIT for this server's code. Listing data belongs to Grassy Knees and is provided for lookups, not bulk copying.

來源：README.md，提交 6bd534d

工具

0
SourceWeft 尚未在沙箱中啟動過該軟體包，因此其工具未知。

版本歷史

1
  1. v0.2.0最新Oct 29, 2026

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