What is the key difference between Mercury Number and Yesterdays Number?

Mercury Number belongs to the Social Media category with local stdio execution, while Yesterdays Number belongs to the Social Media category with local stdio execution.

How do I install Mercury Number or Yesterdays Number 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 Mercury Number and Yesterdays Number free or paid?

Mercury Number operates under a Free / Open Source model (No auth required). Yesterdays Number operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Mercury Number lists 1 tools with 0 views and 0 GitHub stars. Yesterdays Number lists 1 tools with 0 views and 0 GitHub stars.

Can I use both Mercury Number and Yesterdays Number 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

Mercury Number vs Yesterdays Number

In-depth architectural comparison of the Mercury Number and Yesterdays Number 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

Mercury Number

Social Media · Local stdio

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

Yesterdays Number

Social Media · Local stdio

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

Verdict Summary: Choose Mercury Number if you need specialized Social Media tools running via a local process. Choose Yesterdays Number if your workspace requires Social Media integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Mercury Number when:

You need dedicated capabilities in the Social Media domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: mercury_number_generate.

Explore Mercury Number Details

Choose Yesterdays Number when:

You need dedicated capabilities in the Social Media domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: yesterdays_number_get.

Explore Yesterdays Number Details

Feature & Specification Comparison

Specification	M Mercury Number Social Media	Y Yesterdays Number Social Media
Summary	mercury-number MCP — wraps StupidAPIs (requires X-API-Key)	yesterdays-number MCP — wraps StupidAPIs (requires X-API-Key)
Category & Scope	Social Media	Social Media
Quality signal

Tools & Capabilities Breakdown

Mercury Number Tools (1)

mercury_number_generate

Get a random number (1-100) with astrological justification based on Mercury's current zodiac position. Returns the number and cosmic context. Use when you need a number with Mercury retrograde insights or cosmic reasoning.

Yesterdays Number Tools (1)

yesterdays_number_get

A random number, aged 24 hours for smoothness. Some numbers are better with time. This one is fine.

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).

Mercury Number Configuration

mcpServers (Claude Desktop / Cursor)

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

Yesterdays Number Configuration

mcpServers (Claude Desktop / Cursor)

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

Frequently Asked Questions

Mercury Number is categorized under Social Media and uses a local stdio subprocess. In contrast, Yesterdays Number belongs to Social Media using local stdio subprocess. Select Mercury Number when you need capabilities focused on social media and Yesterdays Number when you require tools for social media.

More alternatives to Mercury Number More alternatives to Yesterdays Number Social Media category hub