Polygon RPC Endpoint

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

Polygon PoS is a high-throughput EVM-compatible chain that scales Ethereum with sub-cent transaction fees and 2-second block times. With years of production use, deep stablecoin liquidity, and major brand adoption, Polygon remains one of the most widely-deployed scaling solutions.

About Polygon

Polygon (formerly Matic) launched its proof-of-stake chain in May 2020 and has since grown to be one of the most widely-used EVM chains by both developer and enterprise adoption. The chain uses a heavily-modified Bor (Geth fork) execution client validated by a Heimdall (Cosmos-SDK) consensus layer.

Polygon Labs has been expanding into a broader ecosystem with the AggLayer, Polygon zkEVM, and chain-development kits (CDK). Polygon PoS itself processes 3-5M transactions per day and hosts major brands and stablecoin issuers including Aave, Uniswap, USDC, USDT, Starbucks (loyalty), Adidas, and Reddit Collectible Avatars.

Common Use Cases on Polygon

• Stablecoin payments and remittance
• DeFi (Aave V3, Uniswap V3, Quickswap, Curve)
• Enterprise tokenization (Starbucks, Adidas, Reddit)
• Gaming and NFTs (high-volume, low-fee)
• Layer-2 deployment via Polygon CDK

Polygon Ecosystem

Aave V3 (top non-Ethereum deployment), Uniswap V3, QuickSwap, Curve, Balancer, OpenSea (NFTs). Polygon has deep stablecoin liquidity — USDC and USDT both have $1B+ supply on the chain.

HTTP Endpoint

WebSocket Endpoint

Quick Start: Connect to Polygon

cURL

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

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

viem

import { createPublicClient, http } from "viem";

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

const blockNumber = await client.getBlockNumber();

web3.py

from web3 import Web3

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

Add Polygon to MetaMask

Bridging to Polygon

Official Polygon PoS Bridge (https://portal.polygon.technology) for canonical bridging from Ethereum (~30 min deposits, 1-3 hour withdrawals via checkpoint). Stargate, Across, and Squid for fast cross-chain.

Features of SwiftNodes for Polygon

• 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 Polygon

Rate Limits

Frequently Asked Questions: Polygon