What's the largest leverage on this platform?

https://www.terafx.com/    

TeraFXUK is a trading name of Tera Europe Limited, a company authorized and regulated by the UK Financial Conduct Authority (FCA) with firm reference number: 564741.

As for the question you asked, we recommend that you ask the official customer services directly for a more accurate answer. For more details on this broker, please check our full TeraFXUK review.