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time-iso-week
x402
time-iso-week is a paid API for AI agents from x402.agentindex.world, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).
Returns the ISO week number, ISO year, and ISO weekday for a given date
Price / call$0.001
Success—
StatusUnknown
How this service works
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Output
A JSON object containing three fields: iso_week (integer, 1–53), iso_year (integer, which may differ from the calendar year near year boundaries), and iso_weekday (integer, 1=Monday through 7=Sunday), following the ISO 8601 week-date standard.
Example use cases
Sprint planning week number lookup
“We start our sprint on January 12, 2026 — what ISO week number and ISO year does that date fall in?”
Year-end reporting boundary check
“I need to know the ISO week number for December 31, 2025 — does it count as week 1 of 2026 or the last week of 2025?”
Weekday confirmation for a scheduled task
“Can you tell me the ISO weekday number for March 15, 2026 so I know if it's a Monday, Wednesday, or what?”
Technical details
Endpoint
GEThttps://x402.agentindex.world/time/iso-week?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need standards-compliant ISO 8601 week numbering, especially for business reporting, sprint planning, payroll cycles, or any system that requires week numbers rather than just day/month — particularly when year-boundary edge cases matter (e.g. Dec 29–31 may belong to ISO week 1 of the following year).
Side effects
- Missing or malformed date string returns an error or unexpected result
- Dates near year boundaries may return an iso_year different from the calendar year, which can surprise callers
- No date provided defaults to current date or returns an error depending on implementation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| date | string |
Output
Schema · Response
{
"type": "json",
"example": {
"iso_week": 1,
"iso_year": 2026,
"iso_weekday": 7
}
}Tags
x402
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