Free Public RPC Endpoints

No API key required - blockchain RPC endpoints

⚠️ Important Disclaimer

Public RPC endpoints have rate limits and are not suitable for production applications. Use for testing/development only. For production, use dedicated API providers like Alchemy, Infura, or QuickNode.

Ethereum Public RPC

# CloudFlare
https://eth.llamarpc.com

# Ankr
https://rpc.ankr.com/eth

# QuickNode (Free Tier Required)
https://free-rpc.w3q.g

# Public Ethereum
https://ethereum-rpc.publicnode.com

# All That
https://rpc.ankr.com/eth

Polygon Public RPC

# Polygon PoS
https://polygon-rpc.com

# Ankr
https://rpc.ankr.com/polygon

# QuickNode
https://polygon-rpc.g.alchemy.com

Arbitrum Public RPC

# Arbitrum One
https://arb1.arbitrum.io/rpc

# Ankr
https://rpc.ankr.com/arbitrum

Optimism Public RPC

# Optimism Mainnet
https://mainnet.optimism.io

# Ankr
https://rpc.ankr.com/optimism

Solana Public RPC

# Solana Mainnet
https://api.mainnet-beta.solana.com

# QuickNode
https://api.testnet.solana.com

Avalanche Public RPC

# Avalanche C-Chain
https://api.avax.network/ext/bc/C/rpc

# Ankr
https://rpc.ankr.com/avalanche

BNB Chain Public RPC

# BNB Smart Chain
https://bsc-dataseed.binance.org

# Ankr
https://rpc.ankr.com/bsc

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