Japan business days & holidays (official Cabinet Office data). Free tool + x402 USDC paid tools.
Connect Remote server
claude mcp add --transport http japan-business-day https://japan-business-day-api.matchan962.workers.dev/mcp
{
"mcpServers": {
"japan-business-day": {
"url": "https://japan-business-day-api.matchan962.workers.dev/mcp"
}
}
}
{
"servers": {
"japan-business-day": {
"type": "http",
"url": "https://japan-business-day-api.matchan962.workers.dev/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://japan-business-day-api.matchan962.workers.dev/mcp
Tools 11 found in our last check
is_business_day_freeFREE: 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.
is_business_dayCheck 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.
add_business_daysAdd or subtract N Japanese business days from a date (settlement T+N, delivery ETA). Price: $0.01 USDC via x402.
list_holidaysList Japanese national holidays for a year with JA/EN names. Price: $0.01 USDC via x402.
payment_due_dateJapanese 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.
bank_value_dateWhen 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.
jpx_trading_dayIs 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.
jpx_record_dateJapanese 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_dateNikkei 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.
japanese_koyomiJapanese traditional calendar for a date: rokuyo (taian/butsumetsu lucky days), Reiwa era date, lunisolar date, 24 solar terms. Price: $0.005 USDC via x402.
find_lucky_days_japanFind 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.
Details
| Endpoint | https://japan-business-day-api.matchan962.workers.dev/mcp (Streamable HTTP) |
| First published | 26 Sep 2026 |
| Last updated | 26 Sep 2026 |
| Registry name | io.github.Rira365/japan-business-day |
More finance and crypto servers See all
Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.
