# Business Day Calculator

> Business Day Calculator is a paid API for AI agents from mcpfax-utility.bowling-anthony.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Count business days between two dates, or add/subtract N business days from a date, skipping weekends and holidays.

## Facts

- Endpoint: GET https://mcpfax-utility.bowling-anthony.workers.dev/v1/business-days
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/business-day-calculator-9e863f4d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fBJt3YB7ma5ggBej50Y-Y

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 business-day-calculator-9e863f4d
```

Example prompt: How many business days are there between March 3 and April 15, 2025, excluding US public holidays? Also, what date is exactly 10 business days after March 3?

## When to prefer this

Use this endpoint when you need precise business-day arithmetic that accounts for both weekends and country-specific public holidays. Prefer it over generic date-math libraries when holiday awareness is required for SLA, contract, payment, or shipping deadline calculations.

## Known failure modes

- Invalid date format causes a 400 error
- Unsupported country/holiday calendar returns an error or falls back to weekends-only calculation
- End date before start date may return zero or an error
- Missing required parameters (start date or count) returns a validation error

## How this service works

Business-day math — Count business days in a range, or add/subtract N business days, skipping weekends & holidays.

## Output

Returns either the count of business days between two dates or the resulting date after adding/subtracting N business days, with weekends and public holidays excluded based on the specified country/region.

## 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"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/business-day-calculator-9e863f4d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcpfax-utility.bowling-anthony.workers.dev](https://www.zero.xyz/host/mcpfax-utility.bowling-anthony.workers.dev/llms.txt)