Analytics Token returns HTTP 403 for read-only NIFTY Market Quote and Historical Data

Hi @Harikrishn_57370445 , check if this helps to resolve your issue Upstox API historical candle request blocked by Cloudflare Error 1010 Developer API Hi @SAURAV_55832372 Thank you for the detailed investigation and for sharing your findings. Based on the information you’ve provided, it appears that the API endpoint, authentication, and instrument key are all valid, and the behaviour is influenced by the request characteristics rather than the Historical Candle API itself. Our APIs do not enforce a specific User-Agent header.