Mantle RPC Endpoint

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

Mantle is a modular Ethereum Layer 2 that separates execution, settlement, and data availability. It uses EigenDA for data availability — the first major L2 to do so — significantly reducing data costs compared to chains that post calldata to Ethereum.

About Mantle

Mantle launched mainnet in July 2023 (initially as BitDAO's L2 initiative, later rebranded). The modular architecture (EVM execution, Ethereum settlement, EigenDA data availability) allows Mantle to offer lower fees than typical L2s while inheriting Ethereum security for settlement.

Mantle has one of the largest L2 ecosystem treasuries, originally from BitDAO. The treasury funds incentive programs, liquidity provisioning, and ecosystem development. mETH (Mantle Staked ETH) is a liquid staking token that integrates with Mantle's broader ecosystem.

Common Use Cases on Mantle

• DeFi with sub-cent fees (FusionX, Agni, Lendle)
• Liquid restaking integrations (mETH ecosystem)
• Cross-chain applications with modular data availability
• Treasury-funded ecosystem projects
• Stablecoin yield optimization

Mantle Ecosystem

FusionX, Agni (DEXes), Lendle, INIT Capital (lending), mETH liquid staking. The Mantle Treasury is one of the largest crypto ecosystem treasuries, deployed across grants and liquidity programs.

HTTP Endpoint

WebSocket Endpoint

Quick Start: Connect to Mantle

cURL

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

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

viem

import { createPublicClient, http } from "viem";

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

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

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

Add Mantle to MetaMask

Bridging to Mantle

Native Mantle Bridge (https://app.mantle.xyz/bridge) for Ethereum ↔ Mantle. Stargate, Squid for fast alternatives.

Features of SwiftNodes for Mantle

• 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 Mantle

Rate Limits

Frequently Asked Questions: Mantle