dev.workers.quietworklabs.business-daysPublished by business-days.quietworklabs.workers.devOfficial publisherv1.0.0Updated Oct 27, 2026
NYSE, Federal Reserve, TARGET2 and UK business days, holidays and T+N settlement dates.
Remote MCP server that answers business-day, holiday and T+N settlement-date questions for NYSE, Fedwire/FedACH, TARGET2 and UK calendars.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
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{
"mcpServers": {
"business-day-calendars": {
"type": "http",
"url": "https://business-days.quietworklabs.workers.dev/mcp"
}
}
}Is a date a business day on the given calendars
Whether a date is a business day on one or more settlement calendars (NYSE, Fedwire/FedACH, TARGET2, UK), which holiday closes it, NYSE early closes, and the previous/next business day. Deterministic, no AI. Price: $0.001 USDC per call via x402 (Base); the first 5 calls per day per client are free.
daterequiredcalendarsAdd or subtract N business days
Adds (or with negative days subtracts) N business days to a date on a joint calendar (NYSE, Fedwire/FedACH, TARGET2, UK) and lists the holidays skipped. Deterministic, no AI. Price: $0.001 USDC per call via x402 (Base); the first 5 calls per day per client are free.
daterequireddaysrequiredcalendarsT+N settlement date for a trade date
Settlement date T+N for a trade date on a joint calendar. Default XNYS,FED with t=1 (US equities since 28 May 2024). If the trade date is not a business day it is first rolled to the next one. Deterministic, no AI. Price: $0.001 USDC per call via x402 (Base); the first 5 calls per day per client are free.
tcalendarstrade_daterequiredCount business days between two dates
Counts business days between two dates on a joint calendar: days after start up to and including end (inclusive=true also counts start). Negative if end is before start. Lists weekday holidays in range. Max 10 years. Deterministic, no AI. Price: $0.001 USDC per call via x402 (Base); the first 5 calls per day per client are free.
endrequiredstartrequiredcalendarsinclusiveRoll a date to a business day (modified following etc.)
Rolls a date that falls on a weekend or holiday using a business-day convention: following, modified_following, preceding, modified_preceding. Typical for payment, coupon and invoice due dates. Deterministic, no AI. Price: $0.001 USDC per call via x402 (Base); the first 5 calls per day per client are free.
daterequiredcalendarsconventionHolidays (and NYSE early closes) for a calendar and year
Lists closing days for one calendar and year (2000-2099): NYSE full closures and 1 pm early closes, Federal Reserve (Fedwire/FedACH) holidays with Saturday/Sunday observance rules, TARGET2 closing days, UK England & Wales bank holidays with substitute days. Weekend-only holidays with no weekday closure are omitted. Deterministic, no AI. Price: $0.001 USDC per call via x402 (Base); the first 5 calls per day per client are free.
yearrequiredcalendarrequired72% of the applicable checks met
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