Access 100+ Blockchain Networks with One Simple API

Build powerful blockchain applications without running your own nodes. Get started in minutes, not days.Start Free Today →

✓ No Credit Card Required

✓ Free Tier Available

✓ 5-Minute Setup

Why Blockchain API?

Building blockchain applications shouldn’t require you to become a DevOps expert or spend weeks setting up infrastructure. Our Blockchain API gives you instant access to real-time blockchain data across 100+ networks through one simple, unified interface.

❌ The Old Way (Without Our API)

Set up and maintain your own blockchain nodes
Deal with complex infrastructure and scaling issues
Spend days or weeks on setup before writing code
Pay for expensive servers and bandwidth
Handle node syncing, updates, and downtime
Write custom code for each blockchain

✅ The New Way (With Our API)

Get instant access to 100+ blockchain networks
We handle all infrastructure and scaling
Start building in 5 minutes with simple REST API
Pay only for what you use, starting free
99.9% uptime with automatic failover
One unified API for all blockchains

What You Can Build

🤖

Trading Bots

Build automated trading bots that monitor prices, execute trades, and analyze market data across multiple chains in real-time.

💼

Crypto Wallets

Create multi-chain wallet applications with balance tracking, transaction history, and seamless send/receive functionality.

🎨

NFT Platforms

Launch NFT marketplaces, galleries, or minting platforms with real-time metadata and ownership verification.

📊

Analytics Tools

Develop blockchain explorers, whale trackers, or portfolio analyzers with comprehensive on-chain data.

🎮

Web3 Games

Create play-to-earn games with in-game assets as NFTs and blockchain-based economies.

🏦

DeFi Applications

Build lending platforms, DEX aggregators, or yield farming tools with real-time protocol data.

Supported Blockchain Networks

Layer 1 Networks

Ethereum, Bitcoin, Solana, Avalanche, Cardano, Polkadot, and more

Layer 2 Solutions

Polygon, Arbitrum, Optimism, zkSync, StarkNet

EVM Chains

BSC, Fantom, Cronos, Harmony, Moonbeam

Alternative Chains

Cosmos, Near, Tezos, Algorand, Flow

API vs Running Your Own Node

Feature	Our Blockchain API	Your Own Node
Setup Time	5 minutes	Days to weeks
Initial Cost	Free tier available	$100-500/month
Maintenance	Zero – we handle it	Constant monitoring required
Scaling	Automatic & unlimited	Manual & expensive
Uptime	99.9% guaranteed	Your responsibility
Multiple Chains	100+ chains, one API	One node per chain
Support	24/7 technical support	Community forums only

Getting Started is Simple

// Example: Get Ethereum balance
const response = await fetch('https://blockchain-api5.p.rapidapi.com/balance', {
  method: 'GET',
  headers: {
    'X-RapidAPI-Key': 'your-api-key',
    'X-RapidAPI-Host': 'blockchain-api5.p.rapidapi.com'
  },
  params: {
    address: '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb',
    chain: 'ethereum'
  }
});

const data = await response.json();
console.log(data.balance); // That's it!

Start Building in 3 Simple Steps

Sign Up Free

Create your RapidAPI account and subscribe to our Blockchain API. No credit card needed to start.

Get Your API Key

Receive your unique API key instantly. Copy it and you’re ready to make your first request.

Make Your First Call

Use our code examples in your favorite language. Get real blockchain data in seconds.

Get Started Now →

Key Features

⚡ Real-Time Data

Get live blockchain data with low latency. Perfect for trading bots and time-sensitive applications.

🔒 Secure & Reliable

Enterprise-grade security with SSL encryption, API authentication, and 99.9% uptime SLA.

📚 Complete Documentation

Detailed API reference, tutorials, and code examples in multiple programming languages.

💰 Flexible Pricing

Start free and scale as you grow. Pay only for what you use with transparent pricing.

🚀 Fast Integration

RESTful API design makes integration quick and easy. Works with any programming language.

🛠️ Developer Friendly

Clean API responses, comprehensive error handling, and detailed debugging information.

What Developers Are Saying

“I was able to integrate blockchain data into my app in less than an hour. The documentation is excellent and the API is super fast.”

— Sarah M., Full-Stack Developer

“No more worrying about node maintenance or downtime. This API saved us thousands in infrastructure costs.”

— David K., CTO at DeFi Startup

“Supporting multiple chains would have taken us months. With this API, we did it in a week. Game changer.”

— Alex R., Blockchain Developer

Common API Endpoints

Get Wallet Balance

Check token and native coin balances for any wallet address across all supported chains.

Transaction Details

Retrieve complete transaction information including status, gas fees, and block confirmations.

Smart Contract Interaction

Read from and write to smart contracts without managing web3 libraries or node connections.

NFT Metadata

Get NFT details, ownership info, and transaction history for any NFT across supported chains.

Token Information

Access token price, market cap, supply data, and holder information in real-time.

Frequently Asked Questions

Do I need blockchain experience to use this API?

Not at all! If you can work with REST APIs, you can use our Blockchain API. We provide clear documentation and code examples to get you started quickly. Is there a free tier?

Yes! We offer a generous free tier perfect for development and testing. You can upgrade to a paid plan when you’re ready to scale. Which programming languages are supported?

All of them! Our REST API works with any language that can make HTTP requests. We provide code examples in JavaScript, Python, PHP, Ruby, Java, and more. How reliable is the API?

We maintain 99.9% uptime with redundant infrastructure and automatic failover. Our API is built to handle millions of requests per day. What kind of support do you offer?

We provide email support, comprehensive documentation, code examples, and an active community forum. Premium plans include priority support. Can I cancel anytime?

Absolutely. There are no long-term contracts. You can upgrade, downgrade, or cancel your subscription at any time.

Ready to Build Something Amazing?

Join thousands of developers using our Blockchain API to power their applicationsGet Started Free →

✓ No credit card required • ✓ 100+ blockchain networks • ✓ 5-minute setup

Blockchain API

The easiest way to build blockchain applications

Blockchain API – Access 100+ Blockchain Networks with One Simple API