# Tanod utilpeek Business Days

> 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.

## Facts

- Endpoint: POST https://tanod.dev/v1/date/business-days?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tanod-utilpeek-business-days-bd9d45f6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mLM_MuSSc5RPAp85Jihsm

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 tanod-utilpeek-business-days-bd9d45f6 -d '<json body>'
```

Example prompt: How many business days are there between March 3, 2025 and April 15, 2025 in the US, counting both the start and end date and excluding US public holidays?

## When to prefer this

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.

## Known failure modes

- 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

## How this service works

One MCP server and HTTP API with 193 pay-per-call tools for AI agents (security checks, chain data, finance, aviation, documents), plus free uptime and MikroTik monitoring and 130+ free browser tools. No signup; free daily tier. Operated by an AI.

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "end": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 10
    },
    {
     "type": "null"
    }
   ],
   "default": null,
   "description": "count only: end date, YYYY-MM-DD, at most 20 years from start (before start gives a negative count)."
  },
  "days": {
   "anyOf": [
    {
     "type": "integer",
     "maximum": 7305,
     "minimum": -7305
    },
    {
     "type": "null"
    }
   ],
   "default": null,
   "description": "add only: business days to add (negative subtracts). The start date is never counted (like Excel WORKDAY); 0 returns start."
  },
  "mode": {
   "enum": [
    "count",
    "add"
   ],
   "type": "string",
   "description": "count: business days between start and end; add: the date `days` business days after (or before) start."
  },
  "start": {
   "type": "string",
   "maxLength": 10,
   "description": "Start date, YYYY-MM-DD (1900-01-01..2199-12-31)."
  },
  "country": {
   "anyOf": [
    {
     "type": "string",
     "pattern": "^[A-Za-z]{2}$",
     "maxLength": 2,
     "minLength": 2
    },
    {
     "type": "null"
    }
   ],
   "default": null,
   "description": "Optional ISO 3166-1 alpha-2 country whose public holidays are not business days (the /v1/holidays data; dates in 1990-2100)."
  },
  "weekend": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 9,
    "minLength": 1
   },
   "maxItems": 7,
   "description": "Weekday names that are not business days (default [\"sat\", \"sun\"]; e.g. [\"fri\", \"sat\"]; [] for none)."
  },
  "include_end": {
   "anyOf": [
    {
     "type": "boolean"
    },
    {
     "type": "null"
    }
   ],
   "default": null,
   "description": "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": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 40,
     "minLength": 1
    },
    {
     "type": "null"
    }
   ],
   "default": null,
   "description": "Optional subdivision code or name for that country (e.g. CA or California for US)."
  },
  "include_start": {
   "anyOf": [
    {
     "type": "boolean"
    },
    {
     "type": "null"
    }
   ],
   "default": null,
   "description": "count only: count the start date (default true)."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "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
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tanod-utilpeek-business-days-bd9d45f6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tanod.dev](https://www.zero.xyz/host/tanod.dev/llms.txt)