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Add Business Days Calculator
x402
Add Business Days Calculator is a paid API for AI agents from holidays.x402utils.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).
Calculates the resulting date after adding (or subtracting) N business days from a start date, respecting public holidays for a given country.
Price / call$0.002
Success—
StatusUnknown
How this service works
Public holidays and business-day calculator for agents, ~120 countries: holiday lists, is-this-a-business-day, and add N business days. Paid per call via x402 (USDC on Base).
Output
A JSON object containing the original start date, the resulting date after adding the specified number of business days (skipping weekends and public holidays for the given country), and a confirmation of the number of business days added.
Example use cases
Invoice payment deadline calculation
“Our invoice was issued on March 3 2025 and payment is due in 30 business days — what's the exact due date if the client is in France?”
Software release schedule planning
“We're kicking off a project in Germany on February 1 2026 and need to ship in 20 business days — what's the target release date accounting for German public holidays?”
HR onboarding start date
“A new hire in Japan starts the paperwork process on April 28 2025 — when is their 5th business day (their official first full week complete), considering Japanese holidays?”
Technical details
Endpoint
GEThttps://holidays.x402utils.workers.dev/v1/add-business-days?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need date arithmetic that correctly skips both weekends and country-specific public holidays. It covers ~120 countries and is ideal for scheduling, contract deadlines, invoice due dates, or any workflow requiring accurate business-day offsets. It is pay-per-call with no subscription needed, making it efficient for occasional or agent-driven lookups.
Side effects
- Invalid or unsupported country code returns an error
- Malformed date string causes a parsing error
- Missing required parameters (country, date, days) returns a 400-level error
- Payment not processed (402 if x402 payment header is absent or insufficient)
- Country not covered in the ~120-country database returns an error or empty result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"start": "2026-12-20",
"result": "2027-01-07",
"business_days": 10
}
}Tags
x402
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