# Japan Business Day API – JPX Record Date to Ex-Rights & Cum-Rights Calculator

> Japan Business Day API – JPX Record Date to Ex-Rights & Cum-Rights Calculator is a paid API for AI agents from japan-business-day-api.matchan962.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Given a Japanese equities record date (kenri kakutei-bi), returns the last cum-rights trading day and the ex-rights date under T+2 settlement, accounting for JPX weekends and national holidays.

## Facts

- Endpoint: GET https://japan-business-day-api.matchan962.workers.dev/v1/jpx/record-date?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/japan-business-day-api-jpx-record-date-to-ex-rights-cum-rights-b924c3be
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wNRl-ixew9aiiiEq8bUiE

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 japan-business-day-api-jpx-record-date-to-ex-rights-cum-rights-b924c3be
```

Example prompt: What's the ex-rights date and last cum-rights trading day for a Japanese stock that has a record date (kenri kakutei-bi) of 2025-03-31, accounting for JPX holidays and T+2 settlement?

## When to prefer this

Choose this endpoint when you need to compute Japanese equity ex-rights and cum-rights dates from a shareholder record date, specifically under JPX T+2 settlement with accurate holiday handling. It is purpose-built for Japanese equities dividend and shareholder-benefit scheduling, outperforming generic business-day calculators that lack JPX holiday calendars or T+2 settlement logic.

## Known failure modes

- Invalid or unparseable date format returns an error (date must be ISO 8601 YYYY-MM-DD)
- Record date falls on a non-trading day edge case may return unexpected results
- Holiday data may lag if Cabinet Office updates are not yet reflected
- Network timeout or Cloudflare Worker cold-start latency

## How this service works

Japanese equities dividend/shareholder-benefit schedule: from a record date (kenri kakutei-bi) returns the last cum-rights trading day and the ex-rights date under T+2 settlement, handling weekends and holidays.

## Output

Returns the ex-rights date (the first trading day on which buying the stock no longer confers rights) and the last cum-rights trading day (the final day a buyer is entitled to the dividend/benefit), both computed under Japanese T+2 settlement rules with JPX weekends and national holidays excluded.

## 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": [
      "recordDate"
     ],
     "properties": {
      "recordDate": {
       "type": "string",
       "format": "date"
      }
     }
    }
   },
   "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/japan-business-day-api-jpx-record-date-to-ex-rights-cum-rights-b924c3be/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from japan-business-day-api.matchan962.workers.dev](https://www.zero.xyz/host/japan-business-day-api.matchan962.workers.dev/llms.txt)