Tanod utilpeek Business Days

x402

Tanod utilpeek Business Days is a paid API for AI agents from tanod.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-12).

Count working days between two dates or add N business days to a start date, with support for custom weekends and public holidays for 250 countries.

Price / call$0.001

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Output

Returns either the count of business days between two dates (as an integer, which can be negative if end is before start) or the resulting date after adding N business days to a start date. Respects custom weekend configurations, country-specific public holidays for 250 countries, and optional subdivision-level holiday data for the years 1990–2100.

Example use cases

Contract deadline in working days

“I need to know what date falls exactly 45 business days after May 1, 2025 in the UK — please exclude UK public holidays and use standard Monday-Friday workweek.”

Invoice payment window calculation

“How many business days are there between January 15, 2025 and February 28, 2025 in France, excluding French public holidays? I need the half-open count so don't include the end date.”

Middle East workweek scheduling

“Add 20 business days to March 10, 2025 for Saudi Arabia where the weekend is Friday and Saturday — I need the resulting date excluding Saudi public holidays.”

Technical details

Endpoint

POSThttps://tanod.dev/v1/date/business-days?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need accurate business day calculations that account for country-specific public holidays across 250 countries, custom weekend definitions (e.g. Friday-Saturday in Middle Eastern markets), or regional subdivision holidays. It is superior to simple date-math libraries when international compliance, locale-aware holiday exclusion, or configurable weekend structures are required. Particularly useful for logistics, finance, legal, and HR workflows where precise working-day arithmetic matters globally.

Side effects

Invalid date format (not YYYY-MM-DD) returns a validation error
Date out of supported range (before 1900-01-01 or after 2199-12-31) returns an error
Country code not recognized (not valid ISO 3166-1 alpha-2) returns an error
Providing both 'end' and 'days' parameters simultaneously may return an error or ambiguous result
Days value exceeding ±7305 returns a validation error
End date more than 20 years from start returns an error
Missing required 'mode' or 'start' fields returns a validation error
Payment failure or insufficient USDC balance returns a 402 error

Input

Schema · Request body

Field	Type	Description
end	—	count only: end date, YYYY-MM-DD, at most 20 years from start (before start gives a negative count).
days	—	add only: business days to add (negative subtracts). The start date is never counted (like Excel WORKDAY); 0 returns start.
mode	string	count: business days between start and end; add: the date `days` business days after (or before) start.
start	string	Start date, YYYY-MM-DD (1900-01-01..2199-12-31).
country	—	Optional ISO 3166-1 alpha-2 country whose public holidays are not business days (the /v1/holidays data; dates in 1990-2100).
weekend	array	Weekday names that are not business days (default ["sat", "sun"]; e.g. ["fri", "sat"]; [] for none).
include_end	—	count only: count the end date (default true; both true is Excel NETWORKDAYS, include_end false the half-open [start, end) of numpy.busday_count).
subdivision	—	Optional subdivision code or name for that country (e.g. CA or California for US).
include_start	—	count only: count the start date (default true).

Output

Schema · Response

{
  "type": "json",
  "example": {
    "end": "2027-01-08",
    "mode": "count",
    "note": "Rules-based computation (no official calendar is consulted): public holidays as modelled by the library, including observed/substitute days. Lunar, religious and one-off holidays can be estimates or missing for some years; confirm with an official source for legal or payroll use.",
    "start": "2026-12-21",
    "source": {
      "url": "https://github.com/vacanza/holidays",
      "library": "python-holidays 0.106",
      "license": "MIT"
    },
    "country": "US",
    "weekend": [
      "sat",
      "sun"
    ],
    "counting": "Both start and end are counted when they are business days (like Excel NETWORKDAYS).",
    "include_end": true,
    "subdivision": null,
    "holiday_days": 2,
    "weekend_days": 4,
    "business_days": 13,
    "calendar_days": 19,
    "include_start": true,
    "holidays_skipped": [
      {
        "date": "2026-12-25",
        "name": "Christmas Day",
        "weekday": "Friday"
      },
      {
        "date": "2027-01-01",
        "name": "New Year's Day",
        "weekday": "Friday"
      }
    ],
    "holidays_truncated": false,
    "start_is_business_day": true
  }
}

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