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Market and Holiday Calendar – Next Trading Day Calculator
x402
Market and Holiday Calendar – Next Trading Day Calculator is a paid API for AI agents from market-calendar.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).
Returns the US trading date that is N business days after or before a given date, skipping weekends and NYSE holidays, along with the start date's trading status.
Price / call$0.02
Success—
StatusUnknown
How this service works
The date N US trading days after (or before) a given date, skipping weekends and NYSE holidays, with the starting day's status.
Output
Returns a JSON object with: the computed result trading date, the start date provided, the number of trading days moved, the number of calendar days elapsed, whether the start date itself is a trading day, the name of any holiday on the start date, a human-readable summary, and a source/disclaimer field.
Example use cases
T+2 stock settlement date lookup
“I executed a trade on November 27th 2025 — what is the T+2 settlement date, accounting for NYSE holidays and weekends?”
Options expiration buffer planning
“What trading date is 5 trading days before March 21st 2026, skipping weekends and NYSE holidays?”
Post-holiday next open market day
“Christmas Day 2025 falls on a Thursday — what is the next trading day the US market is open after December 25th 2025?”
Technical details
Endpoint
GEThttps://market-calendar.x402tookit.com/next-trading-day?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to calculate a specific future or past US trading date offset from a known start date — particularly for financial settlement (T+1, T+2, T+3), scheduling market-dependent events, or finding the next open trading day after a holiday. Prefer this over manual calendar math when NYSE holiday accuracy is required. Use sibling endpoints for counting trading days between two dates or checking if a specific date is a trading day.
Side effects
- Missing required 'date' query parameter returns an error
- Date not in YYYY-MM-DD format causes a parse failure
- Days value outside -250 to 250 range is rejected
- Invalid date string (e.g. Feb 30) causes an error
- Network timeout or service degradation may return a 'degraded' flag in response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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