# JP Calendar: Add Japanese Business Days

> JP Calendar: Add Japanese Business Days is a paid API for AI agents from jp-calendar-x402.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Adds N Japanese business days to a given start date, skipping weekends and public holidays, and returns the resulting date

## Facts

- Endpoint: POST https://jp-calendar-x402.onrender.com/v1/add-business-days
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/jp-calendar-add-japanese-business-days-ec2bd8fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IpoRzRlF-CwegpMxeDdGp

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 jp-calendar-add-japanese-business-days-ec2bd8fb -d '<json body>'
```

Example prompt: What date is 10 Japanese business days after March 3, 2026? Skip weekends and any public holidays.

## When to prefer this

Use this endpoint when you need to compute a future date by adding a specific number of working days in Japan, accounting for both weekends and Japanese national public holidays. Ideal for due date calculations, invoice payment terms, shipping ETAs, or any Japan-specific business calendar arithmetic for dates within 2026-2027.

## Known failure modes

- Date outside supported range (2026-2027) — endpoint may return an error or unsupported response
- Invalid date format supplied (non-YYYY-MM-DD) — likely 4xx parse error
- Negative or zero business days requested — behavior undefined
- Payment not submitted or USDC balance insufficient — 402 Payment Required
- Render cold-start latency if service is idle — slow first response

## How this service works

Add N Japanese business days to a date, skipping weekends and public holidays, and return the resulting date. Useful for computing due dates and delivery dates in Japan. Covers years 2026-2027. Cost: $0.002 USDC per request.

## Output

Returns a JSON object with the echoed start date, the resulting date after adding the requested number of Japanese business days (skipping weekends and public holidays), and the number of business days that were added — all dates in YYYY-MM-DD format.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/jp-calendar-add-japanese-business-days-ec2bd8fb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from jp-calendar-x402.onrender.com](https://www.zero.xyz/host/jp-calendar-x402.onrender.com/llms.txt)