Avalanche RPC Endpoint

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

Avalanche is a heterogeneous network of blockchains. The C-Chain is Avalanche's EVM-compatible smart contract chain, offering near-instant finality (~1-2 seconds) and high throughput via the novel Snowman/Avalanche consensus.

About Avalanche

Avalanche launched its mainnet in September 2020. The platform is built around three core chains: the P-Chain (platform), X-Chain (asset exchange), and C-Chain (contract / EVM). Most DeFi activity happens on the C-Chain.

A defining feature is Avalanche Subnets — application-specific chains validated by a customizable validator subset. Subnets allow projects to launch their own L1-class chains with custom rules. Notable subnets include DeFi Kingdoms, Dexalot, and several enterprise/gaming chains.

Common Use Cases on Avalanche

• DeFi with sub-2s finality (Trader Joe, Benqi, Pangolin)
• Subnet-based application chains
• Tokenized real-world assets and institutional pilots
• Gaming chains via Subnets
• Cross-chain bridging hub

Avalanche Ecosystem

Trader Joe (DEX), Benqi (lending), Pangolin, GMX (also on Arbitrum), DeFi Kingdoms (subnet). Avalanche has been an early venue for tokenized RWAs and several large institutional pilots.

HTTP Endpoint

WebSocket Endpoint

Quick Start: Connect to Avalanche

cURL

curl -X POST https://rpc.swiftnodes.io/rpc/avalanche?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/avalanche?key=YOUR_API_KEY"
);

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

viem

import { createPublicClient, http } from "viem";

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

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

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

Add Avalanche to MetaMask

Bridging to Avalanche

Official Avalanche Bridge (https://core.app/bridge) for ETH→AVAX C-Chain. LayerZero, Stargate, Squid for general cross-chain. Bridging is generally fast (~10 min deposits).

Features of SwiftNodes for Avalanche

• 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 Avalanche

Rate Limits

Frequently Asked Questions: Avalanche