Use the transaction submission endpoint only to send transactions. Use the RPC endpoint for all other requests.
The public RPC endpoints are free, rate limited, and best effort. They are not suitable for production apps.https://mainnet.base.org and https://sepolia.base.org do not serve the debug, trace, or txpool namespaces. Base Mainnet removed these namespaces and lowered the read-request rate limit on October 8, 2026 (status notice).If your app uses these namespaces or needs higher throughput, use a dedicated RPC provider from the Builder Stack.
Next Steps
Get Funds
Fund an address to start transacting.
Make a Transaction
Send your first transaction on Base.
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