What is the key difference between Calendar and A11y Check?

Calendar belongs to the Workplace & Productivity category with local stdio execution, while A11y Check belongs to the Browser Automation category with cloud HTTP/SSE execution.

How do I install Calendar or A11y Check in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Calendar and A11y Check free or paid?

Calendar operates under a Free / Open Source model (No auth required). A11y Check operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Calendar lists 11 tools with 0 views and 0 GitHub stars. A11y Check lists 3 tools with 1 views and 0 GitHub stars.

Can I use both Calendar and A11y Check together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Calendar vs A11y Check

In-depth architectural comparison of the Calendar and A11y Check MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Calendar

Workplace & Productivity · Local stdio

Quality: 53/100 (Good) | Auth: No auth required

A11y Check

Browser Automation · Remote HTTP/SSE

Quality: 43/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Calendar if you need specialized Workplace & Productivity tools running via a local process. Choose A11y Check if your workspace requires Browser Automation integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Calendar when:

You need dedicated capabilities in the Workplace & Productivity domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: ics_import, calendars_list, events_list.

Explore Calendar Details

Choose A11y Check when:

You need dedicated capabilities in the Browser Automation domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: Real-browser web page inspection, Accessibility problem detection, Code-based remediation guidance.

Explore A11y Check Details

Feature & Specification Comparison

Specification	C Calendar Workplace & Productivity	A A11y Check Browser Automation
Summary	Read the .ics your calendar already exports: what is on this week, when you are actually free, what is double-booked, and turn a meeting into billable time. All local.	Check a web page for accessibility problems in a real browser, with the code that fixes each one.
Category & Scope	Workplace & Productivity	Browser Automation

Tools & Capabilities Breakdown

Calendar Tools (11)

ics_import

Read a `.ics` file (`path`), pasted contents (`text`) or a public feed (`url`, Pro) and keep it locally under a name. Importing the same name again replaces it.

calendars_list

Every imported calendar: name, source, event count, size, when it was imported.

events_list

Every event between two dates with recurring series expanded to real occurrences, sorted, in your own time zone. Each row carries an id.

events_search

Events whose title, description, location, organizer or attendees contain a phrase.

free_busy

Merged busy blocks and the free gaps inside your working hours, day by day. Events marked free/transparent do not count as busy.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Calendar Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "calendar": {
      "command": "npx",
      "args": [
        "-y",
        "@theluckystrike/mcp-calendar"
      ]
    }
  }
}

A11y Check Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "a11y-check-2": {
      "url": "https://nexaaly.com/mcp"
    }
  }
}

Frequently Asked Questions

Calendar is categorized under Workplace & Productivity and uses a local stdio subprocess. In contrast, A11y Check belongs to Browser Automation using remote streaming HTTP/SSE transport. Select Calendar when you need capabilities focused on workplace & productivity and A11y Check when you require tools for browser automation.

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