I am not planning to trade with euros or dollars for now. Just BTC to other altcoins and other altcoins to BTC. Thank you.
How can I open BTC- Altcoin exchange system. Where should I start? I have experience on programming but I do not have any experience on programming with cryptocurrencies.
Legal procedures give you more headache than programming. You should start a company in a tax-free country.
You have to hire a development team, lawyers, accountants, help desk members etc. That costs money. Can you afford them? Do you have any capital to start?
As I mention before, I am not planning to trade with euros or dollars for now. Just BTC to other altcoins and other altcoins to BTC. Since I only trade cryptocurrencies I think legal procedures not problem. All your suggestions based on that the system trade in fiat bu I never mention that. I post the topic "bitcoin to altcoin exchange".
But thank you for your advices.