Hey @ms25
Fair point you have on this… and we did speak with many users while building APIs. Most, and when I say most its very high calculate this by themselves.
If you will see our implementation of P&L in any of Dhan’s platforms - App or Web, we render P&L much much faster than anyone else would, and we do it on the fly there itself. When we give P&L to users via APIs, it comes live from our trading systems and that basically will take it down (by load and hamper performance) as we will have to calculate this and transmit.
Additionally, many API users we have interacted with have their own source of LTP / Live Prices. So their use-case of trading is just resolved with trading APIs. Also our infrastructure cost of trading APIs is significantly lower than data broadcast APIs (live P&L). That helps us give Trading APIs for free.
We recently made Trading APIs of Dhan free: DhanHQ Superfast Trading APIs Update: Trading APIs are now FREE for all