JSON-RPC
infrastructure · api
A lightweight request-response protocol many blockchain nodes use for transaction broadcast and chain queries.
- Also known as
- rpc, node rpc
JSON-RPC defines a simple JSON request and response format for calling methods on a remote service. Blockchain nodes expose RPC methods so wallets, explorers, and backend systems can query data or submit signed transactions.
RPC endpoints can expose sensitive or resource-intensive capabilities, so production deployments should use authentication, network isolation, rate limiting, and least-privilege method access.
Related terms
Full Node
→Software that independently validates blocks and transactions against a network's consensus rules.
node · blockchain
Indexer
→Software that parses blockchain data into queryable databases so wallets, explorers, and apps can retrieve information quickly.
infrastructure · data
Block Explorer
→An indexed interface for looking up blocks, transactions, scripts or addresses, and other chain data.
tools · fundamentals