Qtum (QTUM)

Qtum API Documentation with NOWNodes

The Qtum API gives developers and businesses secure, high-performance access to the Qtum blockchain through RPC Full Node, BlockBook, WebSocket, and BlockBook WebSocket interfaces. This documentation provides a detailed overview of how to integrate Qtum into your applications, connect to real-time blockchain data on the web, and submit transactions without managing your own node.

With the Qtum docs, developers can work with a blockchain that merges Bitcoin’s UTXO model with Ethereum’s smart contract capabilities. The Qtum API allows you to interact with smart contracts, query balances and blocks, track transactions, and build advanced Web3 applications using familiar tools and code examples.

NOWNodes Qtum Interfaces

• Qtum RPC Full Node – Full access to blockchain data for reading blocks, transactions, and balances, as well as the ability to submit transactions and interact with contracts directly.

• Qtum BlockBook – A high-speed indexing service for address balances, transaction histories, and block details — ideal for wallets and explorers.

• Qtum WebSocket – Real-time event stream for new blocks, transactions, and mempool updates to power live dashboards and reactive applications.

• Qtum BlockBook WebSocket – Optimized WebSocket channel for instant updates on address activity, ensuring fast, event-driven integration.

By using the Qtum API docs with NOWNodes, developers gain enterprise-level infrastructure, complete documentation, responsive support, and production-ready code samples — everything required to integrate the Qtum blockchain into any application efficiently.