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Claude Desktop Date Math timestamp_normalize

How to: Claude Desktop Date Math timestamp_normalize

client:Claude Desktop transport:streamable-http tool:timestamp_normalize

Add Date Math to Claude Desktop

  1. 01

    Open ~/Library/Application Support/Claude/claude_desktop_config.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "date-math": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://date-math.datemath.workers.dev/mcp"
      ]
    }
  }
}
  1. 02

    Save the file and restart Claude Desktop.

  2. 03

    Ask for something timestamp_normalize does. Claude Desktop lists the server's tools on connect and calls timestamp_normalize itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that Date Math's identifier in your config matches the one above exactly.

Claude Desktop has no remote transport in its config file, so this bridges through mcp-remote. Restart the app after saving. Claude Desktop docs

Set these first

Date Math will not start until these are set, so timestamp_normalize never becomes available.

  • DATE_MATH_PRIVATE_KEY
  • DATE_MATH_MAX_PRICE

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.