What Is an RPC Provider, and Why Does Ethereum Need One?
Every Ethereum application - a wallet, a DEX frontend, an indexer, a trading bot - talks to the chain through RPC, short for remote procedure call. An RPC call lets your application ask a node to execute a function (read a balance, submit a transaction, fetch a block) and return the result over a standard JSON-RPC connection, without your application running its own Ethereum node.
That's the whole idea behind the RPC protocol: it means "run this procedure remotely, on infrastructure I don't have to operate myself." An RPC provider is the company or network that runs those nodes on your behalf and exposes them as an RPC API you can point your app at.
Running your own Ethereum node is possible, but it's expensive, requires constant syncing and maintenance, and doesn't scale well under production traffic. That's why almost every serious Ethereum app - from indie wallets to high-volume DeFi protocols - depends on a third-party blockchain RPC provider instead.
What Makes an Ethereum RPC Provider "High Performance"?
