Prices, transactions and updates move fast in the crypto world. Crypto APIs act as messengers between the systems that manage these operations. They pull wallet balances, push orders to exchanges, feed data to dashboards, and interact with smart contracts.
Building reliable tools around them depends heavily on one early decision: the programming language. Not every language is cut out for every job. Some handle data better. Others are made for user interfaces. Some speak directly to the chain.
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