1.) Is it necessary to activate FnO segment to retrieve FnO quotes because I can easily access any of them in my watchlist and see all prices, volumes etc. Or 2.) I tried with all string formats but still Quotes api returning 0: a) BANKNIFTYAPR46500CE b) NSE:BANKNIFTYAPR46500CE c) BANKNIFTY APR 46500 CE
I found that the Error is coming in very diff scenario: 1.) All FnO instruments loaded correctly e.g. 5000. 2.) Then I am requesting for quotes in the batch of 500 instruments each time. 3.) Then out of multiple batches, it is passing only few 500 and showing that error for remaining 500s.
Kindly verify that the correct parameters are being passed in the request and ensure that the quote rate limit (1 request per second) is not being exceeded.
If the issue persists, enable debug mode and share the complete stack trace. Ensure that sensitive details such as the API key and access token are removed before sharing.
Nothing wrong with parameters as similar parameters (string array of 500 instruments) are getting passed successfully sometimes. Below is the stack trace as per code:
at KiteConnect.Kite.Request(String Route, String Method, Object Params, Dictionary`2 QueryParams, Boolean json) at KiteConnect.Kite.Get(String Route, Dictionary`2 Params, Dictionary`2 QueryParams) at KiteConnect.Kite.GetQuote(String[] InstrumentId) at KiteConnectSample.Trade.getquotes(Int32 from, Int32 to) in \Code\Program.cs:line 381
The quote endpoint is rate-limited (~1 request per second). If requests are made in quick succession or in parallel, this can lead to intermittent failures even with valid inputs. To help us investigate further, please enable debug logging and share:
Complete exception message
HTTP status code (if available)
Number of instruments in the failing request
Whether requests are being made sequentially or in parallel
We also need the API endpoint being called, along with the parameters passed and the raw API response received for that request. These details will be available when debug logging is enabled and will help us identify the issue and assist accordingly. Please share the complete debug logs.
First 4-5 requests are getting failed automatically one after another. Then few requests are getting passed one after another. So, I don't think it is related to rate limited. Below is the error message which I had shared earlier too:
Unexpected content type text/html StatusCode: 400, ReasonPhrase: 'Bad Request', Version: 1.1, Content: System.Net.Http.HttpConnectionResponseContent, Headers:
{
Date: Tue, 17 Mar 2026 13:55:07 GMT
Transfer-Encoding: chunked
Connection: keep-alive
CF-RAY: 9ddc7e528b3c3ebe-DEL
Cache-Control: no-cache
cf-cache-status: DYNAMIC
Strict-Transport-Security: max-age=15552000; includeSubDomains
Server: cloudflare
Alt-Svc: h3=":443"
Content-Type: text/html
}
1.) All FnO instruments loaded correctly e.g. 5000.
2.) Then I am requesting for quotes in the batch of 500 instruments each time.
3.) Then out of multiple batches, it is passing only few 500 and showing that error for remaining 500s.
If the issue persists, enable debug mode and share the complete stack trace. Ensure that sensitive details such as the API key and access token are removed before sharing.
at KiteConnect.Kite.Request(String Route, String Method, Object Params, Dictionary`2 QueryParams, Boolean json)
at KiteConnect.Kite.Get(String Route, Dictionary`2 Params, Dictionary`2 QueryParams)
at KiteConnect.Kite.GetQuote(String[] InstrumentId)
at KiteConnectSample.Trade.getquotes(Int32 from, Int32 to) in
If you look at above screenshot, it is giving values to string instruments but showing null because of that error for other similar instruments.
To help us investigate further, please enable debug logging and share:
- Complete exception message
- HTTP status code (if available)
- Number of instruments in the failing request
- Whether requests are being made sequentially or in parallel
We also need the API endpoint being called, along with the parameters passed and the raw API response received for that request. These details will be available when debug logging is enabled and will help us identify the issue and assist accordingly. Please share the complete debug logs.Unexpected content type text/html StatusCode: 400, ReasonPhrase: 'Bad Request', Version: 1.1, Content: System.Net.Http.HttpConnectionResponseContent, Headers:
{
Date: Mon, 23 Mar 2026 07:54:14 GMT
Transfer-Encoding: chunked
Connection: keep-alive
CF-RAY: 9e0bddefb8c1baa7-DEL
Cache-Control: no-cache
cf-cache-status: DYNAMIC
Strict-Transport-Security: max-age=15552000; includeSubDomains
Server: cloudflare
Alt-Svc: h3=":443"
Content-Type: text/html
}
Every time I am trying to pass 500 instruments to quote api as shown below:
string[] stocks = result.Select(i => i.ToString()).ToArray(); //stocks contains string array of 500 instruments
Dictionary quote1 = kite.GetQuote(InstrumentId: stocks);
- Add a slight delay between API calls to avoid burst requests
- Log and verify the exact number of instruments being sent in each request (based on debug logs)
- Reduce the number of instruments per request (e.g., try with 100–200) and check if the issue persists
If the issue still persists, please share the raw request details from the debug logs so we can investigate further.