HashKey Chain RPC Endpoint

Flat-rate HashKey Chain RPC provider and HashKey Chain RPC node access: free tier, no KYC, HTTP & WebSocket. HashKey Chain mainnet chain ID 177.

HashKey Chain mainnet RPC URL: https://rpc.swiftnodes.io/rpc/hashkey?key=YOUR_API_KEY

WebSocket: wss://rpc.swiftnodes.io/ws/hashkey?key=YOUR_API_KEY

HashKey Chain is an OP Stack layer 2 on Ethereum from HashKey Group, with HSK as its gas token. Access HashKey Chain RPC endpoints with SwiftNodes.

Network: HashKey Chain

Type: EVM

Chain ID: 177

Slug: hashkey

Native token: HSK (HSK)

Category: Optimistic Rollup

HashKey Chain on the SwiftNodes fleet, right now

Status: online

Latency: 89 ms

Latest block: 28,420,447

WebSocket: available

10 of 12 probed RPC methods supported (archive, batch, debug_traceCall, trace_transaction). The gaps are listed per chain in the method support matrix.

Status and latency from our health checks, refreshed about every 5 minutes. Uptime history. Method support probed automatically on 2026-10-04. Network status

HashKey Chain developer facts, measured

Block time:: ~2 s (average of the last 1,000 blocks)
Finality:: the finalized tag trails the head by ~795 blocks (~27 min)
eth_getLogs range:: 50,000-block ranges accepted (the largest we test)
Historical state:: readable at least 1,000,000 blocks back

Measured 2026-10-04 through this page's endpoint, re-measured weekly. Limits can differ between the upstream nodes behind it. All chains: measured chain facts.

HashKey Chain Mainnet RPC URL (HTTP)

https://rpc.swiftnodes.io/rpc/hashkey?key=YOUR_API_KEY

HashKey Chain WebSocket RPC URL

wss://rpc.swiftnodes.io/ws/hashkey?key=YOUR_API_KEY

Quick Start: Connect to HashKey Chain

cURL

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

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

viem

import { createPublicClient, http } from "viem";

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

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

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

Add HashKey Chain to MetaMask

Network Name: HashKey Chain (SwiftNodes)

RPC URL: https://rpc.swiftnodes.io/rpc/hashkey?key=YOUR_API_KEY

Chain ID: 177

Currency Symbol: HSK

WebSocket: wss://rpc.swiftnodes.io/ws/hashkey?key=YOUR_API_KEY

Features of SwiftNodes for HashKey Chain

Load-balanced across multiple upstream nodes wherever a chain has more than one, with automatic failover
Health-checked every 2 minutes 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 HashKey Chain

Rate Limits

Plan	Price	HTTP req/s	WS msg/s
Free	$0/mo	2	1
Starter	$49/mo	50	25
Growth	$89/mo	150	75
Scale	$149/mo	300	150
Pro	$249/mo	500	250

Related L2 & rollup chains

Explore RPC endpoints for other L2 & rollup networks on SwiftNodes:

Fraxtal RPC Zora RPC Story RPC Monad RPC Berachain RPC Base RPC

Ready to start building on HashKey Chain? Connect your wallet and get a free API key in 30 seconds. No email or KYC required.