Free Avalanche RPC Endpoint
Chain ID 43114 · AVAX · multi-region with automatic failover
Avalanche C-Chain (Chain ID 43114) is an EVM-compatible chain with sub-second finality. NodeFlare provides multi-region Avalanche RPC for DeFi and gaming workloads.
Public endpoint — no API key
HTTPS
https://rpc.nodeflare.app/avax/publicWSS
wss://rpc.nodeflare.app/avax/ws/publicNeed higher limits? Use a keyed endpoint https://rpc.nodeflare.app/avax/v1/{YOUR_KEY} — get a free key →
Connect to Avalanche
curl -s -X POST https://rpc.nodeflare.app/avax/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/avax/public"
);
const block = await provider.getBlockNumber();import { createPublicClient, http } from "viem";
const client = createPublicClient({
transport: http("https://rpc.nodeflare.app/avax/public"),
});
const block = await client.getBlockNumber();from web3 import Web3
w3 = Web3(Web3.HTTPProvider(
"https://rpc.nodeflare.app/avax/public"
))
print(w3.eth.block_number)Add Avalanche to your wallet
Network details for MetaMask, Rabby, or any EVM wallet — Avalanche chain ID 43114 (0xa86a).
| Network name | Avalanche |
| RPC URL | https://rpc.nodeflare.app/avax/public |
| Chain ID | 43114 |
| Currency symbol | AVAX |
| Block explorer | https://snowtrace.io |
Built for Avalanche
DeFi, gaming, and high-frequency apps on Avalanche C-Chain. Every request routes to the nearest healthy node, with automatic failover and no per-request throttling — the gaps public endpoints leave.
Dedicated Avalanche RPC node — your own path, not a shared pool
NodeFlare runs its own dedicated Avalanche node on bare-metal — not a reseller of Alchemy or Infura, and not a shared free-for-all pool. A free or paid key gives you a dedicated endpoint path with your own rate limits, no per-request throttling, and full access to heavy methods (eth_getLogs, trace_*, debug_*) — your own Avalanche RPC without running the node yourself.
Avalanche RPC — FAQ
What is Avalanche's chain ID?
Avalanche's chain ID is 43114 (hex 0xa86a). Its native currency is AVAX and its block explorer is snowtrace.io. You can connect with NodeFlare's free public RPC at https://rpc.nodeflare.app/avax/public — no API key required.
How do I add Avalanche to MetaMask?
In MetaMask, open the network menu → "Add a network" → "Add a network manually", then enter — Network name: Avalanche; New RPC URL: https://rpc.nodeflare.app/avax/public; Chain ID: 43114; Currency symbol: AVAX; Block explorer URL: https://snowtrace.io. Save, then switch to Avalanche. The endpoint is free and needs no account.
What is the Avalanche RPC URL?
NodeFlare's public Avalanche RPC URL is https://rpc.nodeflare.app/avax/public over HTTPS and wss://rpc.nodeflare.app/avax/ws/public over WSS. No API key is required for the public endpoint.
Is the Avalanche RPC free?
Yes. The public Avalanche 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 Avalanche 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 Avalanche RPC provider?
NodeFlare is an independent Avalanche 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 Avalanche RPC node?
Yes. NodeFlare runs its own dedicated Avalanche 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 Avalanche API reference → — supported methods, WebSocket, regions
- Rate limits & compute-unit costs → — what each method costs against your quota
- Pay per request with x402 → — Avalanche calls in USDC from $0.001, no account:
POST /avax/x402 - RPC for trading bots → and indexers → — low-latency, eth_getLogs-heavy workloads
- Screen a Avalanche 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 Avalanche with a free key
Higher limits, a dedicated path, and automatic failover — every chain included. No credit card.
Get your free API key →Avalanche RPC methods
Per-method docs for Avalanche — parameters, compute-unit cost, and copy-paste examples.