Are there any ways to avoid limitation for api calls (5/sec)?
I need the info about transactions and balance (of certain account), UTXOs and the ability to broadcast my transaction.
Currently I am using public blockchain explorers such as
However they have limits on their calls, which is unacceptable for cases if my service in use of at least 1000-2000 people.
I am begginer, so after some surfing I understood that the only way to tackle that issue is by saving the info in my own database or run my own full nodes (for each currency I have - eth/etc/bitcoin/btc/doge/dash.. etc) which might be pretty expensive and time-consuming.
Can you suggest any good solution?