MaStR MCP Server vs MCP Sam Gov

In-depth architectural comparison of the MaStR MCP Server and MCP Sam Gov 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 MaStR MCP Server 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 MaStR MCP Server Details

Choose MCP Sam Gov 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 MCP Sam Gov Details

Feature & Specification Comparison

Specification	MaStR MCP Server Developer Tools	MCP Sam Gov Developer Tools
Summary	MCP server for the German Marktstammdatenregister (MaStR) energy market register	Keyless MCP — 36 tools for SAM.gov, USAspending, Federal Register, eCFR, Grants.gov.
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": {
    "mastr-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/inspector"
      ]
    }
  }
}

{
  "mcpServers": {
    "mcp-sam-gov": {
      "command": "npx",
      "args": [
        "-y",
        "@cliwant/mcp-sam-gov@latest"
      ]
    }
  }
}

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