Are the connector libraries open source? Or for sale?

ETrade connector is for free. No time and machines limitations.

Sources are paid only. Also you can use your own connector based on Core library located on GitHub.

Thank's a lot for your reply.

Do you support the new V1 API? ETrade just depreciated the old API on Dec 31 2018

I am unable to find ETrade in the S#.data desktop application under Sources. It appears to be missing.

Not, it is not missed. We told with the brokerage tech guys and the recommend us to use IQFeed or other data feed source for algorithmic trading. Maybe for now everything has changed and ETrade translate deep and wide market data, but currently, we do not source for ETrade.

Yes, we know about version upgrading. We have a plan to make the migration. Do you able to use that broker as algotrading order provider? I'm asking cause this broker isn't the best for this case.

@Mikhail

Yes currently we intend to use it as our main algotrading order provider.

Why do you say this is not the best idea?

Ah I see what you mean:

Maybe for now everything has changed and ETrade translate deep and wide market data,

Yes. Given a list of root symbols it is rather painful to gather option chains without first traveling through expiration dates. We will investigate IQFeed as our data source. As far as placing orders we still want to use the same exchange. So maybe we will have to get custom with the S# API.