Global Forex Trading says they do with their new beta version. www.gftforex.com I havn't tried it though. I don't use GFT because they don't trade minis.
Thanks. Do you have any infos? I was not able to find something on their homepage. Gain Capital also has an api, but it works only with funded accounts, not with demo accounts. And I'm not gonna open an account without having tested the api before FXCM also offers something called Trade Robot Client. Until now I was unable to understand the idea behind it at least it doesn't seem to give me full control over my ordering... DEM