RemoteFree server, account needed

Plumbkit MCP server

dev.plumbkit/plumbkit

Exact utilities for agents: time zones, date math, business days, calculator, units, validation.

Install Plumbkit in Claude Code

Claude Code
claude mcp add --transport http plumbkit https://plumbkit.dev/mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "plumbkit": {
      "url": "https://plumbkit.dev/mcp"
    }
  }
}

Frequently asked questions

What does the Plumbkit MCP server do?

Exact utilities for agents: time zones, date math, business days, calculator, units, validation.

Is the Plumbkit MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Plumbkit run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Plumbkit to Claude Code?

Run: claude mcp add --transport http plumbkit https://plumbkit.dev/mcp

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