Hungry eSIM vs Openworkdays

In-depth architectural comparison of the Hungry eSIM and Openworkdays 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.

Which MCP Server Should You Choose?

Choose Hungry eSIM 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 Hungry eSIM Details

Choose Openworkdays 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 Openworkdays Details

Feature & Specification Comparison

Specification	Hungry eSIM Developer Tools	Openworkdays Developer Tools
Summary	Travel eSIMs: unlimited data, pick your days, top up existing eSIMs, card checkout, no API key.	Zero-signup business-day date-math API: add days, count days between dates, is-business-day.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

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).

{
  "mcpServers": {
    "hungry-esim-2": {
      "url": "https://modelcontextprotocol.io"
    }
  }
}

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

Related MCP Server Comparisons