What is the key difference between AgentPhone and Returncheck?

AgentPhone belongs to the Developer Tools category with local stdio execution, while Returncheck belongs to the Developer Tools category with cloud HTTP/SSE execution.

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

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

Which MCP server has more tools and community activity?

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

Can I use both AgentPhone and Returncheck 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

AgentPhone vs Returncheck

In-depth architectural comparison of the AgentPhone and Returncheck 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

AgentPhone

Developer Tools · Local stdio

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

Returncheck

Developer Tools · Remote HTTP/SSE

Quality: 36/100 (Fair) | Auth: No auth required

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

Which MCP Server Should You Choose?

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

Choose Returncheck when:

You need dedicated capabilities in the Developer Tools domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Returncheck Details

Feature & Specification Comparison

Specification	AgentPhone Developer Tools	Returncheck Developer Tools
Summary	Give AI agents real phone numbers, messages, and voice calls via MCP.	Verified return-policy answers for AI shopping agents: can this product actually be returned?
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

AgentPhone Tools (0)

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

Returncheck 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).

AgentPhone Configuration

mcpServers (Claude Desktop / Cursor)

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

Returncheck Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "returncheck": {
      "url": "https://returncheck.m-angelmartinez-fer.workers.dev/mcp"
    }
  }
}

Frequently Asked Questions

AgentPhone is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Returncheck belongs to Developer Tools using remote streaming HTTP/SSE transport. Select AgentPhone when you need capabilities focused on developer tools and Returncheck when you require tools for developer tools.

More alternatives to AgentPhone More alternatives to Returncheck Developer Tools category hub