# TariffMonkee Taiwan Business Day Check

> TariffMonkee Taiwan Business Day Check is a paid API for AI agents from tariffmonkee.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-28).

Checks whether a given date is a business day in Taiwan (ROC), accounting for weekends and public holidays, with optional business-day count across a date range.

## Facts

- Endpoint: GET https://tariffmonkee.com/paid/tw-business-day-check?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tariffmonkee-taiwan-business-day-check-a15209bf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rMg7cxTEk_fLVEfY4sD-i

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability tariffmonkee-taiwan-business-day-check-a15209bf
```

Example prompt: Is February 28, 2025 a business day in Taiwan — and how many business days are there between February 28 and March 14, 2025?

## When to prefer this

Choose this endpoint when you specifically need Taiwan (ROC) business-day logic that accounts for official government public holidays, not just weekday/weekend filtering. It is ideal for automating payment settlement, scheduling, or deadline calculations that must respect Taiwan's official holiday calendar. Prefer it over generic weekday calculators whenever Taiwan-specific holiday accuracy is required.

## Known failure modes

- Date outside coverage (pre-2017 or future dates beyond calendar data): returns a clear not-found error
- Invalid date format (not YYYY-MM-DD): request will fail with a validation error
- range_end spans more than 2 calendar years: rejected with an error
- Network or payment failure: HTTP 402 if payment not processed

## How this service works

Taiwan business day check from the ROC government office calendar (via the TaiwanCalendar project): whether a date is a business day, with weekends and public holidays counted as non-business days, and optionally the business-day count across a range. Covers about 2017 onward; dates outside coverage return a clear not-found error.

## Output

Returns a JSON object with the queried date's business-day status (is_business_day boolean), holiday status (is_holiday boolean), day of week, and a human-readable description of the day. If a range_end date is provided, also returns the count of business days across the range and a list of holidays within it. Includes attribution, data sources, disclaimer, and a verified_on timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "date"
     ],
     "properties": {
      "date": {
       "type": "string",
       "description": "Date to check, format YYYY-MM-DD."
      },
      "range_end": {
       "type": "string",
       "description": "If provided, also returns a business-day count and holiday list for the range from 'date' to this date, inclusive. Must span at most 2 calendar years."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "date",
      "data_note",
      "attribution",
      "disclaimer",
      "sources",
      "verified_on"
     ],
     "properties": {
      "date": {
       "type": "object",
       "required": [
        "date",
        "week",
        "is_holiday",
        "is_business_day",
        "description"
       ],
       "properties": {
        "date": {
         "type": "string"
        },
        "week": {
         "type": "string"
        },
        "is_holiday": {
         "type": "boolean"
        },
        "description": {
         "type": "string"
        },
        "is_business_day": {
         "type": "boolean"
        }
       }
      },
      "range": {},
      "sources": {
       "type": "array",
       "items": {
        "type": "object",
        "required": [
         "name",
         "url"
        ],
        "properties": {
         "url": {
          "type": "string"
         },
         "name": {
          "type": "string"
         }
        }
       }
      },
      "data_note": {
       "type": "string"
      },
      "disclaimer": {
       "type": "string"
      },
      "attribution": {
       "type": "string"
      },
      "verified_on": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "date": {
   "date": "2026-10-10",
   "week": "六",
   "is_holiday": true,
   "description": "國慶日",
   "is_business_day": false
  },
  "range": null,
  "sources": [
   {
    "url": "https://github.com/ruyut/TaiwanCalendar",
    "name": "TaiwanCalendar (ruyut/TaiwanCalendar)"
   },
   {
    "url": "https://data.gov.tw/dataset/14718",
    "name": "政府資料開放平台 -- 中華民國政府行政機關辦公日曆表"
   }
  ],
  "data_note": "Only 'is_holiday' (and the derived 'is_business_day') should be used for logic. 'description' is passed through as-is from the source dataset and is known to be worded inconsistently across years (e.g. adjusted-workday entries read '調整上班' for 2017-2020 but '補行上班' from 2021 onward) -- do not pattern-match on it.",
  "disclaimer": "Informational only, not an official determination. Where this disagrees with a government announcement, the announcement is authoritative -- holiday schedules can change after this dataset is published.",
  "attribution": "Data via the TaiwanCalendar open-source project (github.com/ruyut/TaiwanCalendar), itself republishing 政府資料開放平台 (data.gov.tw)'s official 中華民國政府行政機關辦公日曆表. Licensed CC BY 4.0 / Government Open Data License v1.",
  "verified_on": "2026-10-18"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tariffmonkee-taiwan-business-day-check-a15209bf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tariffmonkee.com](https://www.zero.xyz/host/tariffmonkee.com/llms.txt)
