Base RPC Endpoint

Fast, flat-rate Base RPC node provider — free tier, no KYC, HTTP & WebSocket.

Base is Coinbase's Ethereum Layer 2, built on the OP Stack and secured by Ethereum. Launched in August 2023, Base has become one of the fastest-growing L2s, driven by Coinbase's wallet integration and a friendly developer experience.

About Base

Base is an optimistic rollup that inherits security from Ethereum while offering ~2 second block times and gas fees typically 10-100x cheaper than mainnet. As an OP Stack chain, Base is part of the Optimism Superchain — sharing sequencer infrastructure, governance frameworks, and bridging primitives with Optimism, Mode, Zora, and other Superchain members.

Coinbase operates the current sequencer but has stated intent to decentralize over time. Base inherits Ethereum's security through fault proofs on the L1, with a 7-day challenge window for withdrawals (or instant withdrawals via third-party bridges).

Common Use Cases on Base

• Consumer-grade dApps with Coinbase wallet integration
• Onchain social (Farcaster, friend.tech-style apps)
• Memecoin and creator-economy tokens
• DeFi (Aerodrome, Uniswap V3, Aave)
• Cheap NFT minting and onchain games

Base Ecosystem

Aerodrome is the dominant DEX on Base. Other notable projects: Uniswap V3 (huge volume), Aave V3, Friend.tech (peak 2023), Farcaster (decentralized social), and a wave of memecoins. Base has consistently ranked top-3 L2s by daily transactions since launch.

HTTP Endpoint

WebSocket Endpoint

Quick Start: Connect to Base

cURL

curl -X POST https://rpc.swiftnodes.io/rpc/base?key=YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

ethers.js

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider(
  "https://rpc.swiftnodes.io/rpc/base?key=YOUR_API_KEY"
);

const blockNumber = await provider.getBlockNumber();
console.log("Base block:", blockNumber);

viem

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://rpc.swiftnodes.io/rpc/base?key=YOUR_API_KEY"),
});

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://rpc.swiftnodes.io/rpc/base?key=YOUR_API_KEY"))
print("Base block:", w3.eth.block_number)

Add Base to MetaMask

Bridging to Base

Official Base bridge (https://bridge.base.org) for canonical deposits (10-15 min) and withdrawals (7 days). Third-party fast bridges like Across, Hop, and Squid offer minute-scale transfers in both directions.

Features of SwiftNodes for Base

• Multiple load-balanced upstream nodes for high availability
• Health-checked every 60 seconds with automatic failover
• Free tier available — no credit card or KYC required
• Flat-rate monthly pricing with no per-request fees
• HTTP and WebSocket support
• One API key works across all 75+ supported chains, including Base

Rate Limits

Frequently Asked Questions: Base