Expiry

Get available expiry dates for a futures or options symbol.

Endpoint URL

Local Host   :  POST http://127.0.0.1:5000/api/v1/expiry
Ngrok Domain :  POST https://<your-ngrok-domain>.ngrok-free.app/api/v1/expiry
Custom Domain:  POST https://<your-custom-domain>/api/v1/expiry

Sample API Request

{
  "apikey": "<your_app_apikey>",
  "symbol": "NIFTY",
  "exchange": "NFO",
  "instrumenttype": "options"
}

Sample cURL Request

curl -X POST http://127.0.0.1:5000/api/v1/expiry \
  -H 'Content-Type: application/json' \
  -d '{
  "apikey": "<your_app_apikey>",
  "symbol": "NIFTY",
  "exchange": "NFO",
  "instrumenttype": "options"
}'

Sample API Response

{
  "status": "success",
  "message": "Found 18 expiry dates for NIFTY options in NFO",
  "data": [
    "10-JUL-25",
    "17-JUL-25",
    "24-JUL-25",
    "31-JUL-25",
    "07-AUG-25",
    "28-AUG-25",
    "25-SEP-25",
    "24-DEC-25",
    "26-MAR-26",
    "25-JUN-26",
    "31-DEC-26",
    "24-JUN-27",
    "30-DEC-27",
    "29-JUN-28",
    "28-DEC-28",
    "28-JUN-29",
    "27-DEC-29",
    "25-JUN-30"
  ]
}

Sample API Request (Futures)

{
  "apikey": "<your_app_apikey>",
  "symbol": "NIFTY",
  "exchange": "NFO",
  "instrumenttype": "futures"
}

Request Body

Parameter	Description	Mandatory/Optional	Default Value
apikey	Your OpenAlgo API key	Mandatory	-
symbol	Underlying symbol (e.g., NIFTY, BANKNIFTY)	Mandatory	-
exchange	Exchange code: NFO, BFO, CDS, BCD, MCX	Mandatory	-
instrumenttype	Instrument type: "options" or "futures"	Mandatory	-

Response Fields

Field	Type	Description
status	string	"success" or "error"
message	string	Summary of results
data	array	Array of expiry dates in DD-MMM-YY format

Notes

• Expiry dates are sorted in ascending order (nearest first)

• Weekly expiries are included for index options (NIFTY, BANKNIFTY)

• Monthly expiries extend further into the future

• Use this data to populate expiry dropdowns in your application

• Format is DD-MMM-YY (e.g., 10-JUL-25)

Use Cases

• Options trading: Get available expiries for option selection

• Futures trading: Find current and far-month futures

• Strategy building: Select appropriate expiry for strategy

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