# Market Calendar Oracle – Trading Days, Exchange Holidays & Settlement Dates

> Market Calendar Oracle – Trading Days, Exchange Holidays & Settlement Dates is a paid API for AI agents from store.cryptotradecalc.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns trading days, exchange-specific holidays, session hours, and T+1/T+2 settlement dates for major global exchanges including NYSE, NASDAQ, TSE, LSE, XETRA, HKEX, TSX, and ASX.

## Facts

- Endpoint: GET https://store.cryptotradecalc.com/api/market-calendar
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market-calendar-oracle-trading-days-exchange-holidays-settlement-dates-220d96c6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sse5e-bwUjZg3IRW-08F-

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

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability market-calendar-oracle-trading-days-exchange-holidays-settlement-dates-220d96c6
```

Example prompt: Is NYSE open next Monday, and if I place a trade today on NASDAQ, what's the T+2 settlement date? Check for the next 7 days.

## When to prefer this

Use this endpoint when you need accurate, exchange-specific market calendar data — especially when national holiday calendars are insufficient (e.g. NYSE trades Columbus Day but closes Good Friday). Prefer this over generic public holiday APIs when financial settlement accuracy matters or when querying non-US exchanges like HKEX, TSE, or XETRA.

## Known failure modes

- Unsupported exchange code returns an error or empty result
- Invalid or missing 'exchange' query parameter results in a 400-level error
- Future dates beyond supported horizon may return incomplete data
- Network or upstream service unavailability returns a 5xx error

## How this service works

market-calendar: Market Calendar Oracle – trading days, EXCHANGE holidays (not national ones: NYSE trades Columbus Day but closes Good Friday), session hours, and T+1/T+2 settlement dates for NYSE, NASDAQ, TSE, LSE, XETRA, HKEX, TSX, ASX.

## Output

Returns a structured response listing which days are trading days for the specified exchange, any exchange-specific holidays observed (e.g. Good Friday but not Columbus Day for NYSE), session open/close hours, and calculated T+1/T+2 settlement dates for trades placed on those days.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "days": {
       "type": "string"
      },
      "exchange": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market-calendar-oracle-trading-days-exchange-holidays-settlement-dates-220d96c6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from store.cryptotradecalc.com](https://www.zero.xyz/host/store.cryptotradecalc.com/llms.txt)