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Playground demo key · api.reefapi.com
post/holidays/v1/workday_count1 credit

business-day count over a date range: workdays/weekend_days/holiday_days + the holidays in range

Working example
Parameters
⌘↵
request preview
curl -X POST https://api.reefapi.com/holidays/v1/workday_count \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"country":"US","start":"2026-01-01","end":"2026-01-31"}'

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