Overview
RPC (Remote Procedure Call) is the interface through which applications query blockchain nodes for data and submit transactions. It is the standard API of blockchains. Wallets and dapps rely on RPC endpoints.
How It Works
Applications send JSON-RPC requests to a node, such as getBalance or eth_sendTransaction. The node returns data or submits transactions. Providers host RPC endpoints for developers.
Why It Matters
RPC is the connection between applications and the blockchain. Reliable RPC infrastructure is essential for dapps. Understanding RPC helps developers debug and optimize interactions.
Related Concepts
RPC relates to Nodes, Node Providers, and Transactions. It is the Application-Blockchain interface.