Astar RPC Endpoint

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

Astar is a smart contract network in the Polkadot ecosystem that exposes an EVM environment alongside WebAssembly (Wasm) contracts. Chain 592 is Astar's EVM endpoint, where ASTR is the native gas token.

About Astar

Astar operates as a Polkadot parachain, inheriting shared security from the Polkadot relay chain via nominated proof-of-stake. It supports both EVM and WebAssembly smart contracts, letting developers deploy Solidity contracts or Wasm-based contracts on the same network.

ASTR is the native token, used for gas, staking, and Astar's dApp Staking program, which directs rewards to projects building on the network. Standard Ethereum tooling such as Hardhat, Foundry, ethers.js, and viem works against the chain 592 EVM RPC. Astar has separately operated a zkEVM deployment on different infrastructure, but chain 592 refers to the Polkadot-based Astar EVM.

Common Use Cases on Astar

• EVM smart contract deployment
• WebAssembly (Wasm) contracts
• dApp Staking rewards
• DeFi protocols
• Cross-chain applications within Polkadot
• NFT and gaming projects

Astar Ecosystem

Astar's ecosystem includes DeFi protocols such as ArthSwap, along with infrastructure and cross-chain tooling tied into the broader Polkadot network.

HTTP Endpoint

WebSocket Endpoint

Quick Start: Connect to Astar

cURL

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

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

viem

import { createPublicClient, http } from "viem";

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

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

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

Add Astar to MetaMask

Bridging to Astar

Astar connects to other Polkadot parachains via XCM, and to Ethereum and other ecosystems through third-party bridges such as Celer cBridge.

Features of SwiftNodes for Astar

• 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 Astar

Rate Limits

Frequently Asked Questions: Astar