# Services from business-days.quietworklabs.workers.dev on Zero

> business-days.quietworklabs.workers.dev serves 6 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/business-days.quietworklabs.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/business-days.quietworklabs.workers.dev/health.json

## Services

- [Business Day Calendars – Add Business Days](https://www.zero.xyz/c/business-day-calendars-add-business-days-9f20cb36/llms.txt): $0.001/call via x402. Adds or subtracts a number of business days to a start date using NYSE, Federal Reserve, TARGET2, or UK settlement calendars, returning the resulting date and any skipped holidays.
- [Business Day Calendars – Settlement Date (x402)](https://www.zero.xyz/c/business-day-calendars-settlement-date-x402-62955c35/llms.txt): $0.001/call via x402. Computes the T+N settlement date for a given trade date across NYSE, Federal Reserve, TARGET2, and UK bank holiday calendars, skipping weekends and holidays.
- [Business Day Calendars – Date Adjustment (x402)](https://www.zero.xyz/c/business-day-calendars-date-adjustment-x402-9cf43267/llms.txt): $0.001/call via x402. Adjusts a given date to the nearest valid business day using a specified day-count convention and one or more settlement calendars (NYSE, FED, TARGET2, UK).
- [Business Day Calendars – Count Business Days Between Dates](https://www.zero.xyz/c/business-day-calendars-count-business-days-between-dates-4214b58a/llms.txt): $0.001/call via x402. Returns the number of business days between two dates for one or more settlement calendars (NYSE, FED, TARGET2, UK), including a list of holidays in the range.
- [Business Day Calendars – Is Business Day Check](https://www.zero.xyz/c/business-day-calendars-is-business-day-check-dac7a920/llms.txt): $0.001/call via x402. Checks whether a given date is a business day across one or more settlement calendars (NYSE, Federal Reserve, TARGET2, UK)
- [Business Day Calendars – List Holidays](https://www.zero.xyz/c/business-day-calendars-list-holidays-e3741ebc/llms.txt): $0.001/call via x402. Returns all official holidays and early closes for a given calendar (NYSE, Federal Reserve, TARGET2, or UK) for a specified year between 2000 and 2099.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)