ChainsPolygon: chain ID, RPC URLs and explorers

Polygon: chain ID, RPC URLs and explorers

A Polygon RPC is the endpoint that connects a wallet to Polygon PoS, the chain with ID 137, and Polygon's docs list several free ones. POL, the gas token, is $0.0878 at this check, and Polygon apps hold $618 million by DefiLlama's count.

By Onchain Wiki editors · checked November 9, 2026, 11:17 UTC

Polygon PoS network details, RPCs tested November 9, 2026
Chain ID	137 (0x89)
Native token	POL
Public RPC	`https://polygon.drpc.org` `https://rpc-mainnet.matic.quiknode.pro` `https://polygon-bor-rpc.publicnode.com`
Explorer	polygonscan.com
USDT contract	`0xc2132D05D31c914a87C6611C10748AEb04B58e8F`
USDC contract	`0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359`
Mainnet since	May 31, 2020
Official docs	docs.polygon.technology/pos/reference/rpc-endpoints

Polygon Chain ID and Network Details

The Polygon chain ID is 137, or 0x89 in hex, and the network details below come from Polygon's RPC reference, checked against chainid.network.² The chain is called Polygon PoS, short for proof-of-stake, to tell it apart from other products Polygon Labs has built.

Polygon PoS settings from docs.polygon.technology, read November 8, 2026
Field	Value
Network name	Polygon PoS
Chain ID	137
Currency symbol	POL
RPC URL	`https://polygon.drpc.org`
Block explorer	`https://polygonscan.com`

Working Polygon RPC Endpoints

Three working Polygon RPC endpoints returned 0x89 to our eth_chainId request on November 8, 2026, and each also appears in the chainid.network registry.¹

https://polygon.drpc.org, from dRPC, on Polygon's own list.
https://rpc-mainnet.matic.quiknode.pro, from QuickNode, on Polygon's own list.
https://polygon-bor-rpc.publicnode.com, from PublicNode. Bor is the name of the Polygon PoS layer that produces blocks.³

The old polygon-rpc.com address, still printed in many setup guides, answered with an error in the same test and is missing from Polygon's current list. Two endpoints Polygon does list failed that day too: one sent an empty reply and one asked for a paid plan. Polygon's docs warn that free endpoints may carry rate limits.

Polygon History and the MATIC to POL Switch

Polygon history includes a new name and a gas token switch from MATIC to POL, and it starts with Matic Network, whose mainnet went live on May 31, 2020.⁴ The team renamed itself Polygon in February 2021.⁵

The gas token switched from MATIC to POL on September 4, 2024, at one POL per MATIC. Balances on Polygon PoS converted on their own, while MATIC held on Ethereum needed a migration contract.⁶ A wallet that still shows MATIC as the gas symbol has old network settings saved, and updating the RPC entry fixes the label. Fees in POL are covered on the gas fees page.

USDC and USDT Contracts on Polygon

USDC and USDT contracts on Polygon each come in more than one version, so the address matters more than the ticker. Circle issues native USDC at 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359, launched on October 10, 2023.⁷ The earlier USDC.e at 0x2791bca1f2de4661ed88a30c99a7a9449aa84174 arrived through the Polygon PoS Bridge, and Circle does not issue it.⁸

Tether lists no USDT contract for Polygon on its supported protocols page.⁹ The long-standing USDT token at 0xc2132D05D31c914a87C6611C10748AEb04B58e8F kept its address and became USDT0 in August 2025, a version run by Everdawn Labs and backed by USDT locked on Ethereum, per Cointelegraph and USDT0's own deployment list.¹¹ DefiLlama counts $732 million of USDT on Polygon. The stablecoins hub explains how bridged versions differ from issuer contracts, and the chains hub lists every network we cover.

Questions People Ask About Polygon: chain ID, RPC URLs and explorers

These are the questions people ask next about Polygon: chain ID, RPC URLs and explorers.

What is the Polygon chain ID?

The Polygon chain ID is 137 for Polygon PoS mainnet, written 0x89 in hex. Polygon's docs and the chainid.network registry both give 137, and any wallet entry for Polygon with another number is a different network.

What is the best working Polygon RPC URL?

A working Polygon RPC URL from Polygon's own list is https://polygon.drpc.org, which passed our November 8, 2026 test. QuickNode's rpc-mainnet.matic.quiknode.pro passed as well. Onchain Wiki does not rank providers; pick any endpoint that answers with chain ID 137.

Why does my wallet still say MATIC on Polygon?

Your wallet still says MATIC on Polygon because it kept the network settings from before September 4, 2024, when POL replaced MATIC as the gas token. Polygon's migration notes say updating the RPC settings in the wallet changes the symbol.

What happens if I send tokens on the wrong Polygon network?

What happens when you send tokens on the wrong Polygon network is that they land on a chain the receiver may not watch, such as Ethereum instead of Polygon PoS. Recovery depends on who controls the receiving address; the wrong network guide walks through the cases.

Sources

Every number on this page comes from these sources, checked November 9, 2026.