# Japan Business Day

> Japan business days & holidays (official Cabinet Office data). Free tool + x402 USDC paid tools.

- name: io.github.Rira365/japan-business-day
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 76/100 flags: no-repository
- quality: 73/100 (needs work)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.Rira365%2Fjapan-business-day
- tools: https://api.protogrid.dev/v1/servers/io.github.Rira365%2Fjapan-business-day/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "japan-business-day": {
      "type": "http",
      "url": "https://japan-business-day-api.matchan962.workers.dev/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 98
- freshness: 100
- provenance: 35
- drivers: +reachable +uptime-95% +updated-25d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 73/100 (needs work)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: is_business_day_free (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); is_business_day (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); add_business_days (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 1,572 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 75 (weight 15)

- warn `stability.changes`: 7 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 11, about 1,572 tokens to load them all
- tool set hash: 00398976de6ebc3b4e7501f724a15df3
- tools last changed: 2026-09-27T13:41:44.266Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.Rira365/japan-business-day.svg)](https://protogrid.dev/servers/io.github.Rira365/japan-business-day)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-09-27 `find_lucky_days_japan` added
  - Find auspicious Japanese dates: days in a range matching rokuyo (e.g. taian) and optional weekdays (e.g. sat,sun) for weddings, moving, contracts. Price: $0.01 USDC via x402.
- 2026-09-27 `japanese_koyomi` added
  - Japanese traditional calendar for a date: rokuyo (taian/butsumetsu lucky days), Reiwa era date, lunisolar date, 24 solar terms. Price: $0.005 USDC via x402.
- 2026-09-27 `jpx_sq_date` added
  - Nikkei 225 futures/options SQ day and last trading day for a contract month (2nd Friday, moved earlier on holidays). Price: $0.01 USDC via x402.
- 2026-09-27 `jpx_record_date` added
  - Japanese stocks: last cum-rights trading day and ex-rights date for a dividend/benefit record date (T+2 settlement, holiday-aware). Price: $0.01 USDC via x402.
- 2026-09-27 `jpx_trading_day` added
  - Is the Tokyo Stock Exchange (JPX) open on a date? Next/previous trading day, first/last trading day of the year. Price: $0.005 USDC via x402.
- 2026-09-27 `bank_value_date` added
  - When will a Japanese bank transfer be credited? Returns the value date under standard processing (same day before the cutoff, default 15:00 JST, on a bank business day; otherwise next bank business day). Price: $0.01 USDC via x402.
- 2026-09-26 `payment_due_date` added
  - Japanese payment terms (shimebi/shiharaibi) calculator, e.g. month-end close paid end of next month; shifts to the previous/next business day on weekends/holidays. Price: $0.01 USDC via x402.

Full history: https://api.protogrid.dev/v1/servers/io.github.Rira365%2Fjapan-business-day/changes

## Remotes

- https://japan-business-day-api.matchan962.workers.dev/mcp (streamable-http, auth none, reachable true, uptime30d 0.9468085)

## Packages

_none_

## Tools (11)

- `add_business_days`: Add or subtract N Japanese business days from a date (settlement T+N, delivery ETA). Price: $0.01 USDC via x402.
- `bank_value_date`: When will a Japanese bank transfer be credited? Returns the value date under standard processing (same day before the cutoff, default 15:00 JST, on a bank business day; otherwise next bank business day). Price: $0.01 USDC via x402.
- `find_lucky_days_japan`: Find auspicious Japanese dates: days in a range matching rokuyo (e.g. taian) and optional weekdays (e.g. sat,sun) for weddings, moving, contracts. Price: $0.01 USDC via x402.
- `is_business_day`: Check whether a date is a business day in Japan (official Cabinet Office holiday data). Returns holiday name (JA/EN) and next/previous business day. Price: $0.005 USDC via x402.
- `is_business_day_free`: FREE: check whether a date between today and 90 days ahead (JST) is a business day in Japan. Official Cabinet Office holiday data, supports bank calendar (Dec 31 - Jan 3). For other dates, business-day arithmetic or holiday lists use the paid tools.
- `japanese_koyomi`: Japanese traditional calendar for a date: rokuyo (taian/butsumetsu lucky days), Reiwa era date, lunisolar date, 24 solar terms. Price: $0.005 USDC via x402.
- `jpx_record_date`: Japanese stocks: last cum-rights trading day and ex-rights date for a dividend/benefit record date (T+2 settlement, holiday-aware). Price: $0.01 USDC via x402.
- `jpx_sq_date`: Nikkei 225 futures/options SQ day and last trading day for a contract month (2nd Friday, moved earlier on holidays). Price: $0.01 USDC via x402.
- `jpx_trading_day`: Is the Tokyo Stock Exchange (JPX) open on a date? Next/previous trading day, first/last trading day of the year. Price: $0.005 USDC via x402.
- `list_holidays`: List Japanese national holidays for a year with JA/EN names. Price: $0.01 USDC via x402.
- `payment_due_date`: Japanese payment terms (shimebi/shiharaibi) calculator, e.g. month-end close paid end of next month; shifts to the previous/next business day on weekends/holidays. Price: $0.01 USDC via x402.