If you want to legally run a crypto business in El Salvador, you need a Digital Asset Service Provider (DASP) license. It is regulated by CNAD and issued by the Central Reserve Bank. With a license, you will be able to exchange cryptocurrency, launch trading platforms, manage wallets and even issue tokens. The process is fairly straightforward, but it is important to comply with all local AML/KYC regulations. I used Fintech Harbor Consulting and they were very helpful in understanding this. Here is a link with more information: el salvador crypto license. I recommend creating a clear business plan and preparing all the documents in advance. It really saves time and effort, especially if you are new to the local legislation.