open-primitive

About open-primitive

Use open-primitive with your agent

claude mcp add open-primitive -- npx -y open-primitive-mcp

{
  "mcpServers": {
    "open-primitive": {
      "command": "npx",
      "args": [
        "-y",
        "open-primitive-mcp"
      ]
    }
  }
}

Frequently asked questions

What is open-primitive?

open-primitive is an MCP (Model Context Protocol) server by writesdavid. 33 tools, 30 US federal data domains. Ed25519 signed, provenance chains, entity graph. Free.

How do I connect open-primitive to Claude, Cursor, or another MCP client?

Install open-primitive from its npm package (open-primitive-mcp) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is open-primitive open source?

Yes — the source code is public at github.com/writesdavid/open-primitive-api, with 1 GitHub stars.

Can AI agents pay to use open-primitive?

Not yet through Loomal — open-primitive is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.