# UK Working Days - Next Working Day

> UK Working Days - Next Working Day is a paid API for AI agents from uk-working-days.agent-fee-check.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-22).

Returns the next working day after a given date, respecting UK bank holidays for England & Wales, Scotland, or Northern Ireland

## Facts

- Endpoint: GET https://uk-working-days.agent-fee-check.workers.dev/next?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uk-working-days-next-working-day-e92e9e66
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bEbug6if9K6lq2ZX7jlQL

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 uk-working-days-next-working-day-e92e9e66
```

Example prompt: What's the next working day after 25th December 2025 in England and Wales, using the GOV.UK bank holiday calendar?

## When to prefer this

Use this endpoint when you need to find the next UK working day after a specific date and must respect official GOV.UK bank holidays for a specific UK jurisdiction (England & Wales, Scotland, or Northern Ireland). Prefer it over generic weekday calculators when UK bank holidays must be accounted for, and over manual lookup when automating payment settlement, notice period, or delivery date logic. It is the right choice when the date must fall within the GOV.UK data coverage window and correctness is more important than guessing.

## Known failure modes

- Date is outside the range covered by the GOV.UK bank holiday data — request is refused with an error, not guessed
- Invalid date format (not YYYY-MM-DD) results in a validation error
- Invalid or unrecognised region enum value returns an error
- Missing required 'date' parameter returns a 400-level error
- Network or upstream GOV.UK data fetch failure may cause a 500-level error

## How this service works

UK working-day calculator using GOV.UK bank holidays for England and Wales, Scotland or Northern Ireland. Next working day, add or subtract working days (e.g. payment settlement, notice periods, delivery dates), count working days between dates, and list bank holidays. Dates must fall within GOV.UK coverage; out-of-range dates are refused, not guessed.

## Output

Returns a plain-text summary string indicating the next working day after the supplied date, calculated using official GOV.UK bank holiday data for the specified UK region (England & Wales, Scotland, or Northern Ireland). The summary includes the resolved date in human-readable form.

## 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": "Start date as YYYY-MM-DD"
      },
      "region": {
       "enum": [
        "england-and-wales",
        "scotland",
        "northern-ireland"
       ],
       "type": "string",
       "description": "Defaults to england-and-wales"
      },
      "inclusive": {
       "enum": [
        "true",
        "false"
       ],
       "type": "string",
       "description": "Count the start date itself if it is a working day"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "from": {
   "day": "Thursday",
   "date": "2026-12-24",
   "working_day": true
  },
  "region": "england-and-wales",
  "summary": "The next working day after 2026-12-24 in England and Wales is Tuesday 2026-12-29.",
  "next_working_day": {
   "day": "Tuesday",
   "date": "2026-12-29",
   "working_day": true
  },
  "bank_holidays_skipped": [
   "2026-12-25 Christmas Day",
   "2026-12-28 Boxing Day"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/uk-working-days-next-working-day-e92e9e66/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from uk-working-days.agent-fee-check.workers.dev](https://www.zero.xyz/host/uk-working-days.agent-fee-check.workers.dev/llms.txt)