Grassy Knees

io.github.grassyknees由 GitHub 账号 grassyknees 发布v0.2.0更新于 Oct 29, 2026

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

已验证STDIO仅桌面位置与生活网页搜索与抓取

概览

AI 生成的概览

只读 MCP 服务器，让助手从 Grassy Knees 目录查找美国 42 个大都市区经来源核实的儿童活动、课程和场所。

可以做什么
  • 列出覆盖的 42 个大都市区及其供其他工具使用的 id
  • 按时间范围、类型、是否免费、年龄、类别或关键词搜索单个都市区的活动，按时间由近到远排序
  • 通过 grassyknees.com 链接或 id 获取单条活动的时间表、场地和适龄信息
  • 获取某个都市区或全部都市区的季节性指南（万圣节、圣诞、滑冰、复活节），以截断的 Markdown 返回
适用场景
适合用户询问美国某都市区带孩子做什么时使用，例如周末安排、免费活动、特定年龄的活动或季节性出游，可给出带日期和地点的真实条目而非泛泛建议。
运行要求
通过 npx 以 stdio 在本地运行，需要 Node.js 20 或更高版本，也可用 Docker 镜像；无需 API 密钥或账号。需要能访问 grassyknees.com；可选环境变量 GRASSYKNEES_ORIGIN 可指向其他部署。
安装前请注意
为只读服务，仅访问公开接口，不向站点写入任何内容。每次调用最多返回 20 条结果并缓存 10 分钟；价格、可用性、报名等信息在链接的活动页上，使用前应到该页核对。

安装

在 SourceWeft 中

  1. 打开 控制台中的 Grassy Knees，将其添加到工作区。
  2. 为需要使用其工具的对话启用该服务。

Desktop only，通过 STDIO。 STDIO 服务会启动本地进程，因此需要 SourceWeft 桌面宿主。

其他 MCP 客户端

参照 仓库 中的启动说明。

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.

来源：README.md，提交 6bd534d

工具

0
SourceWeft 尚未在沙箱中启动过该软件包，因此其工具未知。

版本历史

1
  1. v0.2.0最新Oct 29, 2026

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