True Solar Time vs Faf MCP

In-depth architectural comparison of the True Solar Time and Faf MCP 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 True Solar Time 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).
• Primary tools included: Historical IANA time-zone and DST correction, Longitude-based solar-time adjustment, Equation-of-time calculation.

Explore True Solar Time Details

Choose Faf MCP 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).
• Primary tools included: Persistent project.faf context, Bi-directional context synchronization, AI-readiness scoring.

Explore Faf MCP Details

Feature & Specification Comparison

Specification	True Solar Time Developer Tools	Faf MCP Wolfe-Jam Developer Tools
Summary	True solar time correction for BaZi charts: historical DST, longitude, equation of time.	Universal persistent project context for Cursor, Windsurf, Cline, VS Code, and all MCP-compatible platforms (including Claude Desktop). IANA-registered format (application/vnd.faf+yaml). 17 native tools, AI-readiness scoring.
Category & Scope	Developer Tools

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": {
    "true-solar-time": {
      "command": "npx",
      "args": [
        "-y",
        "true-solar-time"
      ]
    }
  }
}

{
  "mcpServers": {
    "wolfe-jam-faf-mcp": {
      "command": "bunx",
      "args": [
        "faf"
      ]
    }
  }
}

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