Authorization token issue for option chain

Developer API
1

I was able successfully get access token
the access token worked for "https://api.upstox.com/v2/historical-candle/instrument_token. The access token is working for this and able to get candle data.
When i am trying to call option/chain with same access token, getting invalid token. Why is same token not working for option chain?

Below is the request

GET https://api.upstox.com/v2/option/chain?instrument_key=NSE_FO|132836
Authorization: “Bearer {{access_token}}”

Response
{
“status”: “error”,
“errors”: [
{
“errorCode”: “UDAPI100050”,
“message”: “Invalid token used to access API”,
“propertyPath”: null,
“invalidValue”: null,
“error_code”: “UDAPI100050”,
“property_path”: null,
“invalid_value”: null
}
]
}

The same access token is working to get the historical candle data

2

@vijay.r.nadar The Historical Candles API is an open API and does not require authorization.
In contrast, the Option Chain API is an authenticated API, and you need to provide a valid access token.