How to Get a Base RPC Endpoint

Step-by-step guide to getting a fast, reliable Base RPC endpoint

Base has become one of the most active Ethereum Layer 2 networks for DeFi, social apps, and onchain consumer products.

If you're building on Base for the first time or scaling a production application, this guide gets you set up with a reliable RPC endpoint in minutes.

Step-by-Step: Get Your Base RPC Endpoint

1

Create a GetBlock Account

Go to GetBlock Dashboard and sign up. You can register with email or via Google/GitHub OAuth.

2

Create an Avalanche Endpoint

Once logged in:

1. Click "Shared Nodes" in the left sidebar

2. Click "Create New Endpoint" or the "+" button

1. Select:

   • Protocol: Base

   • Network: Mainnet or Sepolia

   • API Interface: JSON-RPC or Websocket or MEV-Protected(JSON-RPC) or MEV-protected(Websocket)

   • Region: Frankfurt (EU) or Singapore or New York

   
2. Click "Create": Your endpoint URL will be generated immediately.

3

Copy Your Endpoint URL

Your endpoint URL looks like this:

https://shared.<region>.getblock.io/a1b2c3d4e5f6789012345678abcdef01/

<region> is eu-central-1 (Frankfurt), us-east-1 (New York), or ap-southeast-1 (Singapore) — whichever you picked in step 2.

The long string after the host is your access token — keep it private.

4

Test the Connection

cURL

curl -X POST https://shared.eu-central-1.getblock.io/<YOUR-ACCESS-TOKEN>/ \
  -H "Content-Type: application/json" \
  -d '{
  "jsonrpc":"2.0",
  "method":"eth_chainId",
  "params":[],
  "id":1
  }'

Response

{
  "result": "0x2105"
}

Code Examples

Ethers.js

import { JsonRpcProvider, formatEther } from "ethers";

const provider = new JsonRpcProvider(
  "https://shared.eu-central-1.getblock.io/<YOUR-ACCESS-TOKEN>/"
);

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

const balance = await provider.getBalance("0xYOUR_ADDRESS");
console.log(`Balance: ${formatEther(balance)} ETH`);

Python(Web3.py)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://shared.eu-central-1.getblock.io/<YOUR-ACCESS-TOKEN>/"))

print("Chain ID:", w3.eth.chain_id)  # 8453
print("Latest block:", w3.eth.block_number)

Viem(Typescript)

import { createPublicClient, http } from "viem";
import { base } from "viem/chains";

const client = createPublicClient({
  chain: base,
  transport: http("https://shared.eu-central-1.getblock.io/<YOUR-ACCESS-TOKEN>/"),
});

const blockNumber = await client.getBlockNumber();
console.log("Block:", blockNumber);

const balance = await client.getBalance({
  address: "0xYOUR_ADDRESS",
});
console.log("Balance:", balance);

How to Connect MetaMask to Base via GetBlock

1. MetaMask → Add Network → Add manually

2. Enter:

   • Network Name: Base Mainnet (GetBlock)

   • RPC URL: https://shared.eu-central-1.getblock.io/<YOUR-ACCESS-TOKEN>/

   • Chain ID: 8453

   • Symbol: ETH

   • Explorer: https://basescan.org

3. Save

Base Sepolia Testnet:

• Chain ID: 84532

• Explorer: https://sepolia.basescan.org

Why a Dedicated RPC Provider For Base?

Base inherits Ethereum's security while offering:

• Low gas fees (~$0.01 per transaction)

• EVM compatibility — deploy existing Solidity contracts without changes

• Coinbase ecosystem — seamless fiat on-ramp integration

• Growing DeFi ecosystem — Aerodrome, Uniswap, Aave, and more

But Base's popularity means public RPC endpoints are frequently congested. A dedicated provider like GetBlock gives you consistent performance with up to 500 RPS and 99.9%+ uptime.

Base Flashblocks Support

Base introduced Flashblocks — a mechanism for pre-confirmation of transactions at sub-second speeds. GetBlock supports Flashblocks, enabling your application to react to transactions inclusions faster than waiting for full block confirmation.

How to Build a Base Flashblocks Listener →

Choosing Your Plan

Use Case	Plan	Why
Building on Base	Free ($0)	50K CU/day, perfect for development
Production dApp	Starter ($49/mo)	50M CU/month, 100 RPS
High-traffic DeFi app	Advanced ($199/mo)	220M CU/month, 300 RPS
Onchain consumer product	Pro ($499/mo)	600M CU/month, 24/7 support
Infrastructure provider	Dedicated (from $1,000/mo)	Unlimited, custom SLA

What's Next?

• Full Base API Reference →

• How to Build a Base Flashblocks Listener →

• Using Ethers.js with GetBlock →

• Configure a Dedicated Base Node →

• Get testnet ETH from Base Sepolia faucets.

Scaling on Base? Contact us for dedicated infrastructure with custom performance tuning.