i want to build a cryptocurrency exchange so my question how is best way and secure way to depositing and withdrawing clients ?
should i use api like https://cryptoapis.io or https://www.blockcypher.com/ ?
and this api dont support tether too !!?
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If you are looking for tether on bitcoin (omni-layer), here is the API: api.omniexplorer.info – Tony Sanak May 21 at 5:29
The most secure way is running your own full nodes per Blockchain.
Using third-party services such as blockcypher will put you & your business at high risk because of:
- You're giving the keys to your home & revealing the password of your bank account to someone else! Because in order to use such services, they are the one who make the public & corresponding private keys for you. Even though particularly Blockcypher claims that they will never store your keys, relying on it (I'm not blaming them!) is a risky approach by design!
- You won't be able to participate in verifying transactions on your own & maybe you're part of some attack (e.g. 51% attack even though its very unlikely).
- You're centralizing the technology that has come into existence for the sake of decentralization!
If there was high costs or too steep learning curve on running your own full nodes & connecting to, Maybe using provided interfaces (e.g. JSON/RPC for bitcoincore) was a reasonable way to start with, & switch to your own nodes during next steps, But as there is no such barrier, you'd better launching your own nodes.
