Blockchain RPC fundamentals
What Is Blockchain RPC? A Practical Guide for Project Teams
Learn how blockchain RPC connects applications to nodes, which workloads depend on it, and what production teams should evaluate.
By DTEAM Infrastructure Team · Updated
What RPC means in a blockchain application
RPC stands for remote procedure call: a program sends a request to another service and receives a response. In a blockchain system, an application commonly uses an RPC interface exposed by a node to read network data or submit a transaction. Ethereum, for example, documents its JSON-RPC API and methods.
RPC is an interface to a node, not the blockchain consensus protocol itself. The node and network determine which methods are available, what data can be returned, and how the request is handled.
Typical RPC workloads
An application may use RPC to read a block or account, query a contract, submit a signed transaction, or subscribe to new events. The exact method names and behavior depend on the network and client. A production integration should test against the actual chain and methods it plans to use.
RPC access can be provided through a public endpoint, a shared hosted service, or infrastructure dedicated to a workload. Those options differ in operating responsibility, service policies, configuration, and how the provider handles capacity. Do not assume that every endpoint supports the same methods, history, request limits, or WebSocket behavior.
What production teams should evaluate
For a production system, record the needs that can affect reliability and operating cost:
- Network and method coverage, including any chain-specific extensions.
- Request volume, bursts, payload size, and concurrency.
- Latency and error-rate objectives under representative load.
- HTTP and WebSocket requirements.
- Historical block, state, trace, or archive access.
- Authentication, access controls, observability, support, and failover.
These requirements help a team decide whether a public or shared endpoint is enough or whether to evaluate dedicated versus shared RPC for production workloads. If historical state is part of the workload, see what archive nodes provide.