Netzhandwerker Workdays Calendar API

x402

Netzhandwerker Workdays Calendar API is a paid API for AI agents from tools.netzhandwerker.de, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Checks whether a given date is a working day in a German federal state and optionally adds a number of working days to a date

Price / call$0.001

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StatusUnknown

How this service works

x402-Werkzeuge für autonome Agenten.

Output

Returns whether the specified date is a working day in the given German federal state, and if add_workdays is provided, returns the resulting date after adding that number of working days, accounting for regional public holidays and weekends.

Example use cases

Invoice payment deadline calculation

“Our invoice is dated March 3rd and we need to pay within 14 working days — what's the actual due date for the Bavaria (BY) region in Germany?”

SLA delivery date for German customer

“A customer in Saxony (SN) placed an order today, April 10th — what date is exactly 7 working days from now, accounting for local public holidays?”

Check if a date is a German business day

“Is December 26th a working day in North Rhine-Westphalia (NW)? I need to know before scheduling an automated task for that day.”

Technical details

Endpoint

POSThttps://tools.netzhandwerker.de/v1/calendar/workdays

When to prefer

Choose this endpoint when you need to compute business-day-aware dates specifically for German federal states, where regional public holiday differences matter (e.g. Bavaria vs. North Rhine-Westphalia have different holidays). Prefer this over generic calendar APIs when German regional compliance is required for scheduling, deadlines, SLAs, or payment terms.

Side effects

Invalid or unsupported region code returns an error — must use valid German Bundesland abbreviations like NW, BY, SN
Malformed ISO date string causes a parse error
Missing required fields (date or region) result in a 400-level error
Unsupported country may not have holiday data available
Out-of-range year may lack holiday schedule data

Input

Schema · Request body

Field	Type	Description
to	string
date	string	ISO-Datum für Werktagsprüfung
from	string
year	integer
region	string	Bundeslandkürzel, z. B. NW, BY, SN
country	string
timezone	string
add_workdays	integer	Werktage auf date addieren

Output

Schema · Response

{
  "type": "json",
  "example": {
    "year": 2026,
    "region": "NW",
    "country": "DE",
    "holidays": [
      {
        "date": "2026-01-01",
        "name": "Neujahr"
      }
    ],
    "timezone": {
      "dst": true,
      "name": "Europe/Berlin",
      "utc_offset": "+02:00"
    },
    "date_info": {
      "date": "2026-08-06",
      "holiday": null,
      "weekday": "Donnerstag",
      "workday": true
    },
    "add_workdays_result": "2026-08-20"
  }
}

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Example use cases

Invoice payment deadline calculation

“Our invoice is dated March 3rd and we need to pay within 14 working days — what's the actual due date for the Bavaria (BY) region in Germany?”

SLA delivery date for German customer

“A customer in Saxony (SN) placed an order today, April 10th — what date is exactly 7 working days from now, accounting for local public holidays?”

Check if a date is a German business day

“Is December 26th a working day in North Rhine-Westphalia (NW)? I need to know before scheduling an automated task for that day.”

Technical details

Endpoint

POSThttps://tools.netzhandwerker.de/v1/calendar/workdays

When to prefer

Side effects

Invalid or unsupported region code returns an error — must use valid German Bundesland abbreviations like NW, BY, SN
Malformed ISO date string causes a parse error
Missing required fields (date or region) result in a 400-level error
Unsupported country may not have holiday data available
Out-of-range year may lack holiday schedule data

Input

Schema · Request body

Field	Type	Description
to	string
date	string	ISO-Datum für Werktagsprüfung
from	string
year	integer
region	string	Bundeslandkürzel, z. B. NW, BY, SN
country	string
timezone	string
add_workdays	integer	Werktage auf date addieren

Output

Schema · Response

{
  "type": "json",
  "example": {
    "year": 2026,
    "region": "NW",
    "country": "DE",
    "holidays": [
      {
        "date": "2026-01-01",
        "name": "Neujahr"
      }
    ],
    "timezone": {
      "dst": true,
      "name": "Europe/Berlin",
      "utc_offset": "+02:00"
    },
    "date_info": {
      "date": "2026-08-06",
      "holiday": null,
      "weekday": "Donnerstag",
      "workday": true
    },
    "add_workdays_result": "2026-08-20"
  }
}