Polygon Chain

January 12, 2024

Introducing the Amoy Testnet for Polygon PoS

A new, Sepolia-anchored testnet has been launched for Polygon PoS. Here’s what you need to know

As Ethereum goes, so goes the Polygon PoS chain. 

After hearing from the community, the Amoy testnet for Polygon PoS is being launched, a second testnet that provides a low-stakes environment to build, test, and break things. 

Amoy will use Ethereum’s Sepolia testnet as the root (L1) chain. Developers deploying on Amoy can continue to count on the availability of essential validators, infra, faucets, tooling, and more, in a sustainable and future-proof environment.

Here’s a brief rundown of questions you might have about this launch.

Wait, what’s happening?

New testnet, new state, new vibes. Welcome, Amoy! 

But why though? 

The beloved and widely used Mumbai testnet for Polygon PoS uses Ethereum’s Goerli testnet as its root chain. This means Mumbai counts on Goerli for block production. 

But Goerli is currently scheduled for deprecation, by the end of Q1 2024, with major RPC providers planning to pull support. Although the exact timing isn’t known, the writing is on the wall.

No Goerli = broken Mumbai. The community consensus across the Polygon ecosystem has been to deprecate Mumbai in tandem with Goerli. 

When Goerli goes dark, so will Mumbai.

(Which, by the way, is what Ethereum alignment looks like!)

So, for a little while, there will be two testnets for Polygon PoS? 

Yes! Both the Mumbai and Amoy testnets will operate independently, for an indefinite period of time, ensuring a smooth transition for users and developers for whenever Goerli is deprecated. 

Like Ethereum, Polygon PoS will be, for a while, a multi-testnet chain.  

What are you waiting for? Connect to Amoy and begin deploying today:

Want to discuss the best ways to shape the Polygon ecosystem? Find more details about how to contribute to Polygon Protocol Governance Calls here, or head over to the Polygon governance forum to participate in the conversation.

And make sure to tune into the blog and our social channels to keep up with the latest.

Together, we can build an equitable future for all through the mass adoption of Web3.

Website | Twitter | Forum | Telegram | Discord | Instagram | LinkedIn

More Blogs

August 11, 2026

WalletsOpen Money StackPayments

Get Unlimited Embedded Wallets Free, With Crosschain Routing Included

August 4, 2026

WalletsOpen Money Stack

Custodial vs. Non-Custodial Wallets: Which One Should Your Platform Build?

August 3, 2026

Open Money StackPayments

Move Money Between Solana and Polygon, Ethereum, Base + more EVM Chains with Polygon OMS

July 30, 2026

Polygon ChainOpen Money StackPayments

Ithaca Upgrade Is Live: Payments on Polygon Chain Are More Reliable Than Ever

July 30, 2026

PaymentsPolygon ChainOpen Money Stack

Kansai Electric Power's Rewards Arm Turns Loyalty Points Into Real Stablecoin Payments on Polygon Chain

July 27, 2026

Polygon Chain

Mento Protocol Launches on Polygon for Local Currency Stablecoin Payments

July 9, 2026

PaymentsInstitutionalPolygon Chain

PayPal USD Lands on Polygon Chain, Enabling Regulated Onchain Dollars to Move Across Borders in One Integration

July 2, 2026

Open Money StackPaymentsPolygon Chain

Credible Races Past $152M Total Payments Volume on Polygon

June 26, 2026

PaymentsPolygon Chain

We Built the Best Blockchain for Payments. Now We’re Bringing the World’s Enterprises Onchain

June 22, 2026

InstitutionalOpen Money StackPayments

Uquid Integrates Polygon's Open Money Stack for 1-Click Crypto Checkout Across 178M+ Products