Python tool pulls live NSE and BSE option chains without paid data feeds

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A developer built Strike & Hedge, an options analytics tool for Indian markets, that uses public NSE and BSE endpoints instead of licensed data vendors. The write-up explains how to get past exchange bot-protection with a browser-impersonating HTTP library and a fallback. It also describes endpoint changes, missing data such as BSE intraday OI and FINNIFTY history, and how the tool handles unreliable values. Because no futures quote endpoints remain, the tool derives a futures level from put-call parity and labels it as an estimate. The signals rely on chain snapshots rather than tick data, which limits their use near the market close.

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