What is RPC Endpoint?

An RPC endpoint is a network address that allows wallets and applications to communicate with a blockchain node. It is the essential link between user-facing software and the on-chain state.

How does RPC Endpoint work?

An application formats a request using the JSON-RPC protocol, such as checking a balance or submitting a transaction.
The request is sent to the endpoint URL hosted by a node or provider.
The node processes it and returns the result to the application.

Why does RPC Endpoint matter?

Without RPC endpoints, most users would have no way to interact with a blockchain. Their speed and reliability directly determine the quality of the DApp experience.

Key features of RPC Endpoint

Uses the JSON-RPC protocol for standardized communication
Supports both read queries and state-changing transactions
Available as public shared endpoints or private dedicated ones
Providers like Infura and Alchemy manage endpoints for most users

Examples of RPC Endpoint

MetaMask uses Infura's RPC endpoint by default to display balances and submit transactions. A developer switches to a private Alchemy endpoint to avoid rate limits during a high-traffic NFT mint.