working_days

UK working days between two dates, or the date N working days after/before a date, skipping weekends and bank holidays.

1 credit a call. No key needed to start.

Try it

curl "https://ukdata.reliness.co.uk/v1/working_days?from=2026-11-02"

Parameters

from (YYYY-MM-DD, required)
to (YYYY-MM-DD)
addDays (number)
division (england-and-wales|scotland|northern-ireland)

Use it from an agent

Part of the Maths and working days MCP server at https://ukdata.reliness.co.uk/mcp/maths-dates, or call https://ukdata.reliness.co.uk/v1/working_days with GET or POST.

{
  "mcpServers": {
    "uk-data": {
      "url": "https://ukdata.reliness.co.uk/mcp/maths-dates"
    }
  }
}

Every caller gets 25 free credits a day without a key. For more, get a free key with 300 credits at ukdata.reliness.co.uk.