# Agent402 UK — Business Day Checker

> Agent402 UK — Business Day Checker is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.001/call, status down (last checked 2026-10-12).

Checks whether a given date is a business day, accounting for weekends and optionally UK bank holidays by region.

## Facts

- Endpoint: GET https://agent402.co.uk/v1/time/is-business-day?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent402-uk-business-day-checker-08b42a53
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XX9XpLqWdWi4JZyieEjV1

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 agent402-uk-business-day-checker-08b42a53
```

Example prompt: Is 25 August 2025 a business day in England and Wales? I need to know if it falls on a UK bank holiday before we schedule a payment cut-off.

## When to prefer this

Choose this endpoint when you need a lightweight, cheap (fractions of a cent) probe to determine if a specific date is a UK business day, including bank holiday awareness by region (England and Wales, Scotland, Northern Ireland). Ideal for SLA agents, payment cut-off checks, and scheduling workflows that must respect UK public holidays without maintaining a local holiday calendar. Prefer this over building your own logic when UK regional holiday accuracy matters.

## Known failure modes

- Missing or malformed date parameter returns a 400-level error
- Invalid region string (e.g. typo) may return an error or default behaviour
- Dates far in the future may lack bank holiday data if the government hasn't published them yet
- If country is not set to GB/UK, bank holidays are not checked — only weekends are excluded, which may give incorrect results for UK use cases

## How this service works

Don't burn tokens on deterministic work. Go/no-go jobs first: payout preflight, text firewall (PII/secrets), budget check — then rails, calendars, finmath. x402 USDC on Base. UK + global. agent402.co.uk — not agent402.tools. $0.001–$0.002 USDC on Base. No API keys.

## Output

Returns a JSON object indicating whether the specified date is a business day (true/false), along with the date, country, and region checked. If a UK bank holiday is detected, the holiday name is typically included so the caller knows why the day is not a business day.

## 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 YYYY-MM-DD"
      },
      "region": {
       "type": "string",
       "description": "england-and-wales | scotland | northern-ireland"
      },
      "country": {
       "type": "string",
       "description": "GB|UK enables UK holidays"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "date": "2026-08-31",
  "holiday": {
   "title": "Summer bank holiday"
  },
  "is_holiday": true,
  "is_business_day": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent402-uk-business-day-checker-08b42a53/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.co.uk](https://www.zero.xyz/host/agent402.co.uk/llms.txt)