Plumbkit

MCP server · by plumbkit

AI Agents Streamable HTTP v1.0.0

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

Website ↗ Generate config for multiple servers More servers

Install

Run one of the commands below, then pick your client in the next section.

Streamable HTTP
https://plumbkit.dev/mcp

Setup by client

Pick your client — the config below is generated for this server (hosted endpoint).

Remote (hosted) endpoint

https://plumbkit.dev/mcp

Claude Desktop: Settings → Connectors → Add custom connector, paste this URL, and provide: Authorization.

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add --transport http plumbkit https://plumbkit.dev/mcp --header "Authorization: Bearer <YOUR_AUTHORIZATION>"

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json (hosted endpoint)

{
  "mcpServers": {
    "plumbkit": {
      "url": "https://plumbkit.dev/mcp",
      "headers": {
        "Authorization": "<YOUR_AUTHORIZATION>"
      }
    }
  }
}

Format verified against the official Cursor docs ↗.

.vscode/mcp.json (hosted endpoint)

{
  "servers": {
    "plumbkit": {
      "type": "http",
      "url": "https://plumbkit.dev/mcp",
      "headers": {
        "Authorization": "<YOUR_AUTHORIZATION>"
      }
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json (hosted endpoint)

{
  "mcpServers": {
    "plumbkit": {
      "serverUrl": "https://plumbkit.dev/mcp",
      "headers": {
        "Authorization": "<YOUR_AUTHORIZATION>"
      }
    }
  }
}

Format verified against the official Windsurf docs ↗.

Environment variables

Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.

Authorization secret header — Optional. "Bearer <your API key>" for paid plans. Without it you get the free daily allowance.

About this server

Distributed as Streamable HTTP, listed under AI Agents. Review our MCP security guide before granting access to real data.

Frequently asked questions

How do I install Plumbkit?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is Plumbkit free to use?

The MCP server itself is free to install. Any third-party service it calls may require its own API key and account.

Which clients support Plumbkit?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

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