Introduction

Infura provides secure, reliable access to blockchain networks through managed APIs, removing the complexity of running your own infrastructure. Use these guides to get started, understand core concepts, and integrate Infura into your applications.

cURL

curl https://mainnet.infura.io/v3/<YOUR-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc": "2.0", "method": "eth_blockNumber", "params": [], "id": 1}'

JavaScript

const response = await fetch('https://mainnet.infura.io/v3/<YOUR-API-KEY>', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ jsonrpc: '2.0', method: 'eth_blockNumber', params: [], id: 1 }),
})

console.log(await response.json())

Replace YOUR-API-KEY with a key from the dashboard.

View endpointsCreate API key

Browse the docs

Get started

Create an API key, send your first request, and learn about pricing and endpoints.

Concepts

Understand gas, WebSockets, archive data, transaction types, and other core topics.

How to

Task-oriented guides for batch requests, JWT authentication, and more.

Tutorials

End-to-end walkthroughs for Ethereum and Layer 2 networks.