Open Primitive vs Ko MCP

In-depth architectural comparison of the Open Primitive and Ko 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?

O

Choose Open Primitive 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 Open Primitive Details

Choose Ko 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).

Explore Ko MCP Details

Feature & Specification Comparison

Specification	O Open Primitive Developer Tools	Ko MCP Developer Tools
Summary	16 US federal data domains as MCP tools. Signed responses with provenance.	Real SEC, 13F, insider, congress & macro data your AI agent can cite. Hosted MCP, 24 tools.
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": {
    "open-primitive": {
      "command": "npx",
      "args": [
        "-y",
        "open-primitive-mcp"
      ]
    }
  }
}

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

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