What is the key difference between Temporal Cortex MCP and Inbox Zero?

Temporal Cortex MCP belongs to the Workplace & Productivity category with local stdio execution, while Inbox Zero belongs to the Workplace & Productivity category with local stdio execution.

How do I install Temporal Cortex MCP or Inbox Zero 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 Temporal Cortex MCP and Inbox Zero free or paid?

Temporal Cortex MCP operates under a Free / Open Source model (other). Inbox Zero operates under a Freemium model (OAuth 2.0).

Which MCP server has more tools and community activity?

Temporal Cortex MCP lists 18 tools with 3 views and 13 GitHub stars. Inbox Zero lists 6 tools with 1 views and 12,270 GitHub stars.

Can I use both Temporal Cortex MCP and Inbox Zero 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

Temporal Cortex MCP vs Inbox Zero

In-depth architectural comparison of the Temporal Cortex MCP and Inbox Zero 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

Temporal Cortex MCP

Workplace & Productivity · Local stdio

Quality: 65/100 (Great) | Auth: other

Inbox Zero

Workplace & Productivity · Local stdio

Quality: 55/100 (Good) | Auth: OAuth 2.0

Verdict Summary: Choose Temporal Cortex MCP if you need specialized Workplace & Productivity tools running via a local process. Choose Inbox Zero if your workspace requires Workplace & Productivity integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Temporal Cortex MCP when:

You need dedicated capabilities in the Workplace & Productivity domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
You have access to required keys: GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, MICROSOFT_CLIENT_ID, TIMEZONE.
Primary tools included: adjust_timestamp, book_slot, check_availability.

Explore Temporal Cortex MCP Details

Choose Inbox Zero when:

You need dedicated capabilities in the Workplace & Productivity domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: OAuth 2.0 (Freemium).
You have access to required keys: GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, MICROSOFT_CLIENT_ID, MICROSOFT_CLIENT_SECRET, GOOGLE_BASE_URL, MICROSOFT_BASE_URL.

Feature & Specification Comparison

Specification	Temporal Cortex MCP temporal-cortex Workplace & Productivity	Inbox Zero elie222 Workplace & Productivity
Summary	AI-native calendar middleware for scheduling, availability, and conflict-free booking across Google Calendar, Outlook, and CalDAV. 15 tools across 5 layers: temporal context, calendar operations, multi-calendar availability, open scheduling, and Two-Phase Commit booking. Deterministic datetime resolution and RRULE expansion powered by Truth Engine.	An MCP server for Inbox Zero. Adds functionality on top of Gmail like finding out which emails you need to reply to or need to follow up on.
Category & Scope

Tools & Capabilities Breakdown

Temporal Cortex MCP Tools (18)

adjust_timestamp

Adjust a timestamp by adding or subtracting a duration. DST-aware: '+1d' preserves wall-clock time across daylight saving transitions.

book_slot

Book a calendar slot using Two-Phase Commit for safe, conflict-free booking.

check_availability

Check if a calendar time slot is available (not held by another booking).

compose_proposal

Compose a scheduling proposal message with proposed time slots. Formats times in the specified timezone for email, Slack, or SMS. Does NOT send the message — returns formatted text for the agent to send via its channel MCP (Gmail, Slack, etc.).

compute_duration

Compute the duration between two timestamps. Returns days, hours, minutes, seconds, and a human-readable string.

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).

Temporal Cortex MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "temporal-cortex-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@temporal-cortex/cortex-mcp"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "YOUR_GOOGLE_CLIENT_ID_HERE",
        "GOOGLE_CLIENT_SECRET": "YOUR_GOOGLE_CLIENT_SECRET_HERE",
        "MICROSOFT_CLIENT_ID": "YOUR_MICROSOFT_CLIENT_ID_HERE",
        "TIMEZONE": "YOUR_TIMEZONE_HERE"
      }
    }
  }
}

Inbox Zero Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "elie222-inbox-zero": {
      "command": "npx",
      "args": [
        "-y",
        "@inbox-zero/cli"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "YOUR_GOOGLE_CLIENT_ID_HERE",
        "GOOGLE_CLIENT_SECRET": "YOUR_GOOGLE_CLIENT_SECRET_HERE",
        "MICROSOFT_CLIENT_ID": "YOUR_MICROSOFT_CLIENT_ID_HERE",
        "MICROSOFT_CLIENT_SECRET": "YOUR_MICROSOFT_CLIENT_SECRET_HERE",
        "GOOGLE_BASE_URL": "YOUR_GOOGLE_BASE_URL_HERE",
        "MICROSOFT_BASE_URL": "YOUR_MICROSOFT_BASE_URL_HERE"
      }
    }
  }
}

Frequently Asked Questions

Temporal Cortex MCP is categorized under Workplace & Productivity and uses a local stdio subprocess. In contrast, Inbox Zero belongs to Workplace & Productivity using local stdio subprocess. Select Temporal Cortex MCP when you need capabilities focused on workplace & productivity and Inbox Zero when you require tools for workplace & productivity.

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