Date Math / Tools / pay_dates

Payroll dates that skip weekends and holidays

Upcoming pay or billing dates for monthly, semi-monthly (e.g. 15th and last day), biweekly or weekly schedules, moved off weekends and public holidays (to the previous, next or nearest business day). Use for payroll calendars, invoice due dates and recurring billing.

MCP tool pay_datesHTTP POST /v1/pay_dates25 free calls a day, then $0.001

Try it

Runs the real tool over MCP. Edit the arguments and run. Uses your daily free calls.

pay_dates

result

{
  "schedule": "semi_monthly",
  "adjust": "previous",
  "count": 4,
  "pay_dates": [
    {
      "scheduled": "2026-12-15",
      "pay_date": "2026-12-15",
      "weekday": "Tuesday",
      "adjusted": false
    }
  ]
}

The result shown before you run is a saved example response.

Use it from your agent

Add the MCP server once and your agent can call pay_dates and the other 19 tools.

Claude Code

One command in your terminal.

claude mcp add --transport http date-math https://date-math.datemath.workers.dev/mcp

Any MCP client

Claude Desktop, Cursor, VS Code, Windsurf.

{
  "mcpServers": {
    "date-math": {
      "url": "https://date-math.datemath.workers.dev/mcp"
    }
  }
}

HTTP + x402

POST JSON; pay the 402 with any x402 client.

curl -X POST https://date-math.datemath.workers.dev/v1/pay_dates \
  -H "Content-Type: application/json" \
  -d '{"schedule":"semi_monthly","from":"2026-12-01","count":4,"country":"PH"}'

Full schema: OpenAPI · llms.txt