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Glossary

RPC Node

An RPC node is a blockchain server that exposes a Remote Procedure Call interface, allowing applications to query chain state and broadcast transactions to the network.

Alex Nin

Alex Nin

— 2 min read
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RPC Node

An RPC node is a blockchain server that exposes a Remote Procedure Call (RPC) interface, allowing applications to query chain state and broadcast transactions to the network. The term RPC refers to a general computing pattern for invoking functions on a remote machine; in onchain markets it refers specifically to the standardized endpoints a node operator runs so that wallets, trading systems, and analytics tools can interact with a chain.

How it works

An RPC node runs blockchain client software that maintains a copy of the ledger and tracks new blocks as validators produce them. It listens for requests over HTTP or WebSocket on defined methods, such as reading an account balance, fetching a block, estimating gas, or submitting a signed transaction. Each request is answered from the node's local view of the chain, and transaction submissions are relayed into the peer-to-peer network for inclusion.

Nodes vary by the depth of data they retain. A full node keeps recent state and can serve current queries, while an archive node stores every historical state and supports lookups at any past block. Providers typically run clusters of nodes behind a load balancer and expose a single endpoint, so a request may be served by any node in the pool.

Why it matters

For an institutional reader, the RPC node is the dependency that determines whether an application can see the chain accurately and act on it in time. Latency, uptime, rate limits, and consistency across nodes directly affect execution quality, settlement monitoring, and reporting. Operating nodes internally requires ongoing infrastructure work, which is why many firms use managed providers; the tradeoffs are covered in RPC vs APIs vs Data Infrastructure: What Engineering Teams Actually Need to Build Onchain.

  • Full node
  • Archive node
  • Node provider
  • JSON-RPC
  • Validator

Frequently asked questions

What is the difference between an RPC node and a validator?

A validator produces and confirms blocks as part of consensus. An RPC node serves read and submission requests to applications. A single machine can perform both roles, but the functions are distinct.

Do I need to run my own RPC node?

No. Applications can connect to managed node providers that expose shared endpoints. Running your own node gives more control over data retention, rate limits, and privacy, at the cost of infrastructure maintenance.

What is the difference between a full node and an archive node?

A full node retains recent state and serves current queries. An archive node stores complete historical state, allowing queries at any past block. Archive nodes require substantially more storage.

Allium provides onchain data infrastructure. Companies named in this article may be Allium customers, prospects or commercial counterparties. The authors and other Allium personnel may hold positions in the assets discussed. This article is informational only and is not investment, legal or tax advice. Data and information last reviewed: October 19, 2026.

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