I can't find a complete or good reviews of barchart data feed They cost almost the same as IQFeed They offer an API Java and C#, but I cant get an answer from them if the subscription that provide API access can also be used with say Sierrachart ... or the other way around if the subscription via Sierrachart will grant me access to the API If you are confused about what I am saying, to subscribe to Barchart data feed you use a form that is usually linked to another company example: this is the sierrachart barchart subscription form https://www.barchart.com/register/realtime/form.php?ID=SC this is the Modulus FE link https://www.barchart.com/register/realtime/form.php?ID=MOD
Barchart data via Sierracharts with CME agreement is under $70/month and it's worked fine for the year that I've used it.
So I finally got an answer from Barchart The time they took to reply to my email was in my opinion way too long, which is not a good sign Now if I subscribe from this link (the dev link) https://www.barchart.com/register/realtime/form.php?ID=DEV I will get access to the API But if I subscribe from the Sierrachart link I will only get access from Sierrachart The wording they used is still a bit vague in my opinion, because it implies that the subscription from the dev link will also work in Sierrchart but doesnt confirm it 100% Anyway, anyone knows how it compare to IQFeed?