Optimism API Comparison

Find the best APIs for building on Optimism. Compare RPC endpoints, data APIs, and infrastructure providers for OP Stack.

Top Optimism Infrastructure Providers

Optimism is the pioneering Ethereum L2 with Bedrock upgrade. Choose the right API provider for your dApp or DeFi project.

Recommended API Providers for Optimism

Alchemy

Enterprise-grade infrastructure with OP Stack support

  • Free Tier20M compute units
  • OP SupportMainnet & Base
  • Enhanced APIsTransfers, Debug
  • Uptime99.9% SLA
Get Free API Key →

QuickNode

High-performance global network

  • Free Tier50K requests/day
  • OP SupportMainnet
  • SpeedGlobal CDN
  • Add-onsNFT API
Get Free API Key →

Infura

Proven reliability with ConsenSys backing

  • Free Tier100K requests/day
  • OP SupportMainnet
  • DashboardAdvanced analytics
  • SupportEmail & chat
Get Free API Key →

Public RPC Endpoints

Provider RPC URL Chain ID Notes
Optimism (Official) https://mainnet.optimism.io 10 Recommended
Public RPC https://rpc.ankr.com/optimism 10 Free
Cloudflare https://mainnet.optimism.io 10 Official

Frequently Asked Questions

What is the best free Optimism RPC?

Optimism's official RPC (mainnet.optimism.io) is free and reliable. For production applications, upgrade to Alchemy or QuickNode for better performance.

Does Alchemy support Optimism Bedrock?

Yes, Alchemy fully supports Optimism Bedrock upgrade with all enhanced APIs and improved throughput.

How do I connect to Optimism using MetaMask?

Add Optimism network manually: RPC URL https://mainnet.optimism.io, Chain ID 10, Currency symbol OP, Block explorer https://optimistic.etherscan.io