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Shared node infrastructure for top blockchains using JSON-RPC.
Retrieve blockchain data, balances, and transactions
Detailed blockchain history and transaction data for any address.
Access to full transaction data on all transactions & addresses
Full smart contracts metadata, including token symbols & token names
Dedicated nodes infrastructure for leading blockchains using JSON-RPC
Address validation, encoding & cryptographic tasks optimizations
Broadcast and verify transactions with real-time monitoring
Sync and manage HD wallets, keys and addresses
Precise blockchain transaction fee estimates based on transaction priority
Prepare EVM transactions, including token transfers
Access to full transaction data on all transactions & addresses
Real-time notifications for events on top blockchains. Response under 100ms.
Get access to unified market data using REST APIs from top crypto exchanges.
Test EVM transactions, optimize gas fees and identify security flaws
Jun 19, 2025 • 3 min
In today’s Web3 landscape, performance isn’t optional—it’s everything. Users expect blazing-fast interactions, and developers need infrastructure that doesn’t slow them down. Whether you’re building a DeFi dashboard, NFT marketplace, or crypto wallet, the underlying data delivery method directly impacts user experience and retention.
While WebSocket protocols are often associated with real-time performance, HTTP—when built on a high-performance, scalable infrastructure—can be just as effective for the vast majority of blockchain use cases. That’s exactly what Crypto APIs delivers.
HTTP APIs are familiar, easy to integrate, and highly reliable. In blockchain development, they’re typically used for single, request-response actions like checking a wallet balance, retrieving historical transactions, or pulling token metadata.
While WebSockets maintain a persistent connection and stream live updates, HTTP can still provide fast, responsive data delivery when supported by robust backend systems and intelligent caching—especially when real-time data isn’t absolutely mission-critical.
In Web3, seconds—or even milliseconds—can matter. And although WebSocket APIs offer a continuous data stream, HTTP can be optimized for low latency in many performance-sensitive blockchain applications:
In many cases, the responsiveness of a high-performance HTTP API, like those from Crypto APIs, is more than sufficient to support a smooth user experience.
HTTP APIs for cryptocurrency projects continue to play a foundational role, particularly for:
HTTP is ideal for server-side processes, automated scripts, or administrative tools that don’t require persistent data streams.
Crypto APIs is a leading blockchain API provider offering enterprise-grade HTTP infrastructure for developers, startups, and businesses building in the crypto space. Our platform delivers:
With over 100 endpoints, Crypto APIs empowers developers to create responsive, feature-rich crypto apps—without the complexity of managing nodes or real-time data streams.
Developers face serious challenges when integrating blockchain data:
Crypto APIs solves these problems with a unified, stable, and developer-friendly API platform that abstracts away blockchain complexity.
Whether you’re a solo developer or scaling a Web3 product to millions, our platform helps reduce infrastructure overhead and accelerates your time to market.
When handling digital assets and sensitive blockchain data, uptime and security aren’t optional—they’re mandatory. Crypto APIs ensures:
These protections allow businesses to build with confidence—knowing their infrastructure is secure and always available.
Since Crypto APIs focuses on high-performance HTTP APIs, here’s when HTTP is the right choice:
✅ You need to fetch historical or static blockchain data
✅ You're building backend services or scheduled sync jobs
✅ Real-time updates are not mission-critical
For most applications, HTTP—when delivered through an optimized infrastructure like Crypto APIs—is more than sufficient to power fast, reliable, and scalable Web3 experiences.
In a world of short attention spans and fierce competition, application speed and reliability are critical. Developers who choose infrastructure that prioritizes performance—like Crypto APIs—gain a significant edge.
Crypto APIs offers a secure, scalable solution for developers who demand enterprise-grade reliability without the complexity of real-time streaming. Whether you're building the next big NFT platform or a cross-chain DeFi app, we help you move fast—and stay fast.
Explore how Crypto APIs can power your crypto project with fast, secure, and scalable HTTP APIs. With full blockchain coverage and enterprise-grade tools, we give your team everything it needs to build confidently.
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