No, to be able to trade through Arbitly, you don't need to complete KYC (Know Your Customer) process. However, you will require to do it if you are planning to invest above 100k to help us fighting Money Laundering (AML) issues.
Some identifying documents required by KYC processes include:
1. Identity verification, i.e. a passport or driver’s license.
2. Address identification, i.e. phone bill or a utility bill.
3. Source of income, i.e. bank statement (last 3 months).
Learn more - Anti-Money Laundering Policy