What is the key difference between Duration and AgentPhone?

Duration belongs to the Developer Tools category with local stdio execution, while AgentPhone belongs to the Developer Tools category with local stdio execution.

How do I install Duration or AgentPhone 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 Duration and AgentPhone free or paid?

Duration operates under a Free / Open Source model (No auth required). AgentPhone operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Duration lists 0 tools with 0 views and 0 GitHub stars. AgentPhone lists 0 tools with 0 views and 121 GitHub stars.

Can I use both Duration and AgentPhone 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

Duration vs AgentPhone

In-depth architectural comparison of the Duration and AgentPhone 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

Duration

Developer Tools · Local stdio

Quality: 23/100 (Emerging) | Auth: No auth required

AgentPhone

Developer Tools · Local stdio

Quality: 49/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Duration if you need specialized Developer Tools tools running via a local process. Choose AgentPhone if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Duration when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Duration Details

Choose AgentPhone when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore AgentPhone Details

Feature & Specification Comparison

Specification	D Duration Developer Tools	AgentPhone Developer Tools
Summary	ISO 8601 duration MCP.	Give AI agents real phone numbers, messages, and voice calls via MCP.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Duration Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

AgentPhone Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

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).

Duration Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "duration": {
      "command": "npx",
      "args": [
        "-y",
        "duration"
      ]
    }
  }
}

AgentPhone Configuration

mcpServers (Claude Desktop / Cursor)

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

Frequently Asked Questions

Duration is categorized under Developer Tools and uses a local stdio subprocess. In contrast, AgentPhone belongs to Developer Tools using local stdio subprocess. Select Duration when you need capabilities focused on developer tools and AgentPhone when you require tools for developer tools.

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