Free Base RPC Endpoint
Chain ID 8453 · ETH · multi-region with automatic failover
Base (Chain ID 8453) is Coinbase's OP-Stack L2 — low fees, high throughput, full EVM compatibility. NodeFlare runs dedicated Base nodes with automatic failover so your app keeps a fast, consistent connection under load.
Public endpoint — no API key
HTTPS
https://rpc.nodeflare.app/base/publicWSS
wss://rpc.nodeflare.app/base/ws/publicNeed higher limits? Use a keyed endpoint https://rpc.nodeflare.app/base/v1/{YOUR_KEY} — get a free key →
Connect to Base
curl -s -X POST https://rpc.nodeflare.app/base/public \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'import { ethers } from "ethers";
const provider = new ethers.JsonRpcProvider(
"https://rpc.nodeflare.app/base/public"
);
const block = await provider.getBlockNumber();import { createPublicClient, http } from "viem";
const client = createPublicClient({
transport: http("https://rpc.nodeflare.app/base/public"),
});
const block = await client.getBlockNumber();from web3 import Web3
w3 = Web3(Web3.HTTPProvider(
"https://rpc.nodeflare.app/base/public"
))
print(w3.eth.block_number)Add Base to your wallet
Network details for MetaMask, Rabby, or any EVM wallet — Base chain ID 8453 (0x2105).
| Network name | Base |
| RPC URL | https://rpc.nodeflare.app/base/public |
| Chain ID | 8453 |
| Currency symbol | ETH |
| Block explorer | https://basescan.org |
Built for Base
Consumer apps, onchain social, and high-throughput DeFi built on Base. Every request routes to the nearest healthy node, with automatic failover and no per-request throttling — the gaps public endpoints leave.
Low-latency Base RPC — 5 regions, geo-routed
We run our own bare-metal Base nodes in 5 regions across US-East, US-West, EU and Asia — not a reseller of Alchemy or Infura. Every request is geo-routed to the region you call from: the gateway reads the Cloudflare edge location and picks the nearest healthy node, with automatic failover. A trading bot in Singapore hits our Singapore Base node, not one in the US — real round-trip time saved on your hot path.
Base RPC — FAQ
What is Base's chain ID?
Base's chain ID is 8453 (hex 0x2105). Its native currency is ETH and its block explorer is basescan.org. You can connect with NodeFlare's free public RPC at https://rpc.nodeflare.app/base/public — no API key required.
How do I add Base to MetaMask?
In MetaMask, open the network menu → "Add a network" → "Add a network manually", then enter — Network name: Base; New RPC URL: https://rpc.nodeflare.app/base/public; Chain ID: 8453; Currency symbol: ETH; Block explorer URL: https://basescan.org. Save, then switch to Base. The endpoint is free and needs no account.
What is the Base RPC URL?
NodeFlare's public Base RPC URL is https://rpc.nodeflare.app/base/public over HTTPS and wss://rpc.nodeflare.app/base/ws/public over WSS. No API key is required for the public endpoint.
Is the Base RPC free?
Yes. The public Base endpoint is free with no sign-up. A free API key unlocks higher rate limits, heavy methods, and a dedicated path — 2,000,000 compute units per month, no credit card.
What are the Base RPC rate limits?
The public endpoint is limited to 2 requests/second per IP. A free key gives 10 requests/second; paid plans scale to 500 req/s. Every plan includes all 22 supported chains.
Is NodeFlare a good Base RPC provider?
NodeFlare is an independent Base RPC provider that runs its own nodes — not a reseller or aggregator of third-party backends. The public endpoint is free with no sign-up; a free API key adds higher rate limits, WebSocket, and heavy methods (eth_getLogs, trace_*, debug_*) — 2,000,000 compute units per month, no credit card.
Is there a dedicated Base RPC node?
Yes. NodeFlare runs its own dedicated Base node(s), and every request is routed to the nearest healthy node with automatic failover. A free or paid key gives you a dedicated endpoint path with your own rate limits and full access to archive methods like eth_getLogs and debug_traceTransaction.
Go deeper
- Full Base API reference → — supported methods, WebSocket, regions
- Rate limits & compute-unit costs → — what each method costs against your quota
- Pay per request with x402 → — Base calls in USDC from $0.001, no account:
POST /base/x402 - RPC for trading bots → and indexers → — low-latency, eth_getLogs-heavy workloads
- Screen a Base token for scams → — ownership, honeypot check, holder concentration → one risk score
- Onchain tools for AI agents → — token-safety, wallet intelligence and RPC over MCP / x402
Build on Base with a free key
Higher limits, a dedicated path, and automatic failover — every chain included. No credit card.
Get your free API key →Base RPC methods
Per-method docs for Base — parameters, compute-unit cost, and copy-paste examples.