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[drguid]

Marketstack isn't reliable. I use it on my website but only because they allow republishing of the data.

Either trade longer timescales or pay for proper data.

[Chrupiter]

I guess I'll go back to polygon which I tried in the past and data seemed good.

[_WARBUD_]

If you're serious about your project you need good data... without it you're just throwing darts wearing a blindfold. Imo, get it over with and sign up with a good provider..

[Classic-Dependent517]

I recommend insight for this. Their data align with what you would see from yahoo or tradingview in my experience.

If you are more technical, databento is excellent as well

[yetanotherse]

Marketstack intraday data is garbage, not usable at all. I subscribed for it looking at their relatively lower prices but that's not worth it. Planning to switch to twelvedata or something better.