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bizcal-api /between — Count Business Days Between Two Dates
x402
bizcal-api /between — Count Business Days Between Two Dates is a paid API for AI agents from api.firstmention.uk, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-31).
Counts the number of business days between two dates for a given country (US, UK, Germany, France, Netherlands), accounting for weekends and national public holidays.
Price / call$0.03
Success—
StatusUnknown
How this service works
Pay-per-call HTTP APIs, paid with x402 in USDC on Base (eip155:8453): agentkit, api-change-check, basedue, basewatch, chainread, check-sanctions, chgwatch, company-facts, composite, edgar, feednews, pageaudit, solcheck, token-dd, txpreflight, walletcheck, webmd, webread, websearch, x402index. Each operation describes its service.
Output
Returns a JSON object with: business_days (int), calendar_days (int), weekend_days (int), weekday_holidays (int), plus a holidays array listing each public holiday (date, name, weekday) that falls in the range, along with the echoed start, end, and country parameters and an optional note.
Example use cases
Contract deadline calculation
“Our contract says delivery is due 45 business days after signing. We signed on April 1, 2025 and the counterparty is in Germany — how many business days are there between April 1 and June 30, 2025 in Germany so I can check if we're within the window?”
SLA compliance check
“We have a 30-business-day SLA for UK customers. The ticket opened on January 6, 2025 and was resolved on February 28, 2025 — how many business days is that in the UK (England & Wales)?”
Payroll cycle planning
“I need to know how many business days fall between January 1 and March 31, 2025 in France so I can plan our Q1 payroll schedule around French public holidays.”
Technical details
Endpoint
GEThttps://api.firstmention.uk/s/bizcal-api/between?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the exact count of net working days between two dates for one of the five supported countries (US, UK/England & Wales, Germany, France, Netherlands), factoring in both weekends and national public holidays. It is ideal for SLA calculations, contract deadline arithmetic, payroll planning, and any scheduling logic that must respect country-specific holidays. Prefer it over generic date-diff utilities when holiday-aware business-day counts are required.
Side effects
- Missing required query parameters (country, start, end) — returns 400 Bad Request
- Invalid date format (non-YYYY-MM-DD) — returns 400 validation error
- Unsupported country code (anything other than US, GB, DE, FR, NL) — returns 400 or enum validation error
- Start date after end date — may return 0 business days or an error
- Payment not included or insufficient USDC balance — returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"end": "2026-12-05",
"start": "2026-11-20",
"country": "US",
"holidays": [
{
"date": "2026-11-26",
"name": "Thanksgiving Day"
}
],
"business_days": 10,
"weekday_holidays": 1
}
}Tags
x402
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