stocks - What online brokers offer APIs? -

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so i'm getting sick of e*trade and, being developer, love find online broker offers api. great able write own trading tools, , maybe modify existing ones.

based on research far, i've found 1 option. interactive brokers offers multi-language api (java/c++/activex/dde) , has decent commission rates boot. want make sure there aren't other options out there should considering. ideas?

update: based on answers far, here's quick list...

i vote ib(interactive brokers). i've used them in past quite happy. pinnacle capital markets trading has api (pcmtrading.com) haven't used them.

interactive brokers:

https://www.interactivebrokers.com/en/?f=%2fen%2fsoftware%2fibapi.php

pinnacle capital markets:

http://www.pcmtrading.com/es/technology/api.html


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