# 2s.io Stock Exchange Holiday Calendar

> 2s.io Stock Exchange Holiday Calendar is a paid API for AI agents from 2s.io, paid per call via x402, $0.0025/call, status unknown (last checked 2026-09-14).

Returns upcoming market holidays for a given stock exchange, including date, holiday name, full/early close status, and partial trading hours.

## Facts

- Endpoint: GET https://2s.io/api/markets/holiday
- Price: $0.0025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/2s-io-stock-exchange-holiday-calendar-0beed9cb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZI02YCC7swscgqpNWG8k_

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 2s-io-stock-exchange-holiday-calendar-0beed9cb
```

Example prompt: What are the upcoming market holidays for the US stock exchange — include whether each day is a full close or just an early close, and what the trading hours are on partial days?

## When to prefer this

Use this endpoint when you need to know which days a stock exchange is closed or has shortened hours, especially for scheduling trades, automating workflows around trading days, or building financial planning tools. Prefer this over a generic calendar API because it returns structured, exchange-specific market holiday data with partial session details powered by Finnhub.

## Known failure modes

- Invalid or unsupported exchange code returns an error or empty list
- Network or upstream Finnhub data unavailability returns a 5xx error
- Malformed query parameter may return a 400 bad request
- Data may lag if Finnhub has not yet published holidays for the next calendar year

## How this service works

Stock-exchange holiday calendar. Pass exchange (default US); returns the list of upcoming market holidays with the date, holiday name, whether the session is a full close or an early close, and the trading hours when partial. Use it to plan around non-trading days. Data by Finnhub.

## Output

A list of upcoming market holidays for the specified exchange, each entry containing the holiday date, holiday name, whether the market session is a full close or early close, and the trading hours when the session is only partially closed.

## 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",
    "queryParams"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "required": [],
     "properties": {
      "exchange": {
       "type": "string",
       "description": "Exchange code, e.g. US."
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "properties": {
   "ok": {
    "type": "boolean"
   },
   "meta": {
    "type": "object",
    "properties": {
     "exchange": {
      "type": "string"
     },
     "timezone": {
      "type": "string"
     }
    }
   },
   "items": {
    "type": "array",
    "items": {
     "type": "object",
     "properties": {
      "atDate": {
       "type": "string"
      },
      "eventName": {
       "type": "string"
      },
      "tradingHour": {
       "type": "string"
      }
     }
    }
   },
   "total": {
    "type": "integer"
   },
   "source": {
    "type": "object",
    "properties": {
     "url": {
      "type": "string"
     },
     "license": {
      "type": "string"
     },
     "provider": {
      "type": "string"
     }
    }
   }
  }
 },
 "example": {
  "ok": true,
  "meta": {
   "exchange": "US",
   "timezone": "America/New_York"
  },
  "items": [
   {
    "atDate": "2026-07-03",
    "eventName": "Independence Day",
    "tradingHour": ""
   }
  ],
  "total": 1,
  "source": {
   "url": "https://finnhub.io",
   "license": "Finnhub API terms (commercial market, fundamental & alternative data; attribution required)",
   "provider": "Finnhub"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/2s-io-stock-exchange-holiday-calendar-0beed9cb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 2s.io](https://www.zero.xyz/host/2s.io/llms.txt)