Option Chain

Type	APIs	Details
POST	{{BASE_URL}}/obrest/optionChain/getUnderlying	Fetches the list of available underlyings (indices or symbols) for which Option Chain data can be retrieved.
POST	{{BASE_URL}}/obrest/optionChain/getUnderlyingExp	Retrieves the list of available expiry dates for a given underlying symbol.
POST	{{BASE_URL}}/obrest/optionChain/getOptionChain	Fetches the complete Option Chain data for a specific underlying and expiry.

Get Underlying List

Request Structure

{ 
  "exch": "nse_fo" 
} 

Input parameters

Field	Type	Criticality	Description
exch	String	Required	Exchange code. Possible values: • nse_fo – NSE Options • bse_fo – BSE Options • mcx_fo – MCX Options

Response Structure

{ 
  "status": "Ok", 
  "message": "Success", 
  "result": [ 
    { 
      "list_underlying": [ 
        "NIFTY", 
        "BANKNIFTY", 
        "FINNIFTY" 
      ] 
    } 
] 
} 

Response Parameters

Field	Type	Description
list_underlying	String	List of underlying symbols available for Option Chain data.

Get Underlying Expiry

Request Structure

{  
"underlying": "NIFTY", 
"exch": "nse_fo"
}

Request Parameters

Field	Type	Description
underlying	String	Underlying symbol. Get the list from /getUnderlying API.
exch	String	Exchange code (nse_fo, bse_fo, mcx_fo).

Response Structure

{ 
"status": "Ok", 
"message": "Success", 
"result": [ 
            { 
            "underlying": "NIFTY", 
            "underlying_expiry": [ 
                "04NOV25", 
                "11NOV25" 
                ] 
            } 
        ] 
} 

Response Parameters

Field	Type	Description
underlying	String	Name of the underlying.
underlying_expiry	String	List of expiry dates for the given underlying.

Get Option Chain

Request Structure

{ 
"underlying": "NIFTY", 
"expiry": "04NOV25", 
"interval": 10, 
"exch": "nse_fo"
}

Input Parameters

Field	Type	Description
underlying	String	Underlying symbol (e.g., NIFTY).
expiry	String	Expiry date from /getUnderlyingExp API.
interval	String	Strike price interval. Possible values: 5, 10, 15, 20, 25.
exch	String	Exchange code (nse_fo, bse_fo, mcx_fo).

Response Structure

{ 
  "status": "Ok", 
  "message": "Success", 
  "result": [ 
    { 
      "data": [ 
        { 
          "CE": { 
            "forInsName": "EURUSD 26th NOV 1.1 CE", 
            "gval": "0", 
            "ltp": "0", 
            "oi": "0", 
            "pdc": "0.0775", 
            "pdoi": "0.0000", 
            "token": "4800", 
            "tradingsymbol": "EURUSD26NOV25C1.1" 
          }, 
          "PE": { 
            "forInsName": "EURUSD 26th NOV 1.1 PE", 
            "gval": "0", 
            "ltp": "0", 
            "oi": "0", 
            "pdc": "0.0028", 
            "pdoi": "0.0000", 
            "token": "4801", 
            "tradingsymbol": "EURUSD26NOV25P1.1" 
          } 
        } 
      ] 
    } 
  ] 
}

Response Parameters

Field	Type	Description
CE	String	Call option details.
PE	String	Put option details.
gval	String	Greeks or calculated value (if applicable).
ltp	String	Last traded price
oi	String	Open interest.
pdc	String	Previous day close.
pdoi	String	Previous day open interest.
token	String	Unique token ID for the contract.
tradingsymbol	String	Trading symbol for the contract.