Syndr L3 Sepolia

A Layer 3 Ethereum testnet on Sepolia for Syndr, enabling fast, low-cost dApp testing with ETH gas on Chain ID 444444.

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Faucet

Syndr L3 Sepolia Faucet

Get free ETH fast and reliably. 0.01 ETH/day.

Chain Overview

Info

syndr.com

Chain ID

Native Token

Sepolia Ether (ETH)

RPC

RPC Latency

Latest Block

EIP-7702

Explorers

Syndr L3 Sepolia Testnet Explorer

https://sepolia-explorer.syndr.com

thirdweb Products

Contracts

Create, deploy and manage smart contracts

Frequently asked questions

Syndr L3 Sepolia is a Layer 3 testnet for the Syndr ecosystem that uses ETH as the native gas token, enabling safe pre‑production testing of apps, bridges, and tooling. It’s used to validate smart contracts, simulate trading and liquidity flows, and run end‑to‑end QA with faucet ETH before deploying to production. Official performance metrics (avg gas cost, block speed, TPS, on‑chain activity) have not been published as of the latest public information.

It’s a project‑specific L3 testnet tailored to Syndr with ETH‑based fees and tight bridge integration, providing a focused environment for fast cross‑chain testing and iteration. While public benchmarks (avg gas, block speed, TPS, activity) are currently N/A, an L3 rollup design targets materially lower gas and faster blocks than Ethereum Sepolia (~12s blocks), enabling realistic load testing at low cost. This specialization reduces friction versus general‑purpose L1/L2 testnets and accelerates developer workflows.

Syndr L3 Sepolia uses ETH as the gas token for transaction fees. You can obtain ETH by bridging from other chains or purchasing using thirdweb Bridge, or through faucets (for testnet).

To bridge ETH to Syndr L3 Sepolia, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select Syndr L3 Sepolia as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.

To build on Syndr L3 Sepolia you can use thirdweb, which provides an easy way to build, monetize and scale your apps, games or agents. You can find detailed guides and documentation on https://portal.thirdweb.com to get started quickly.

To add Syndr L3 Sepolia to your wallet, you can connect your wallet and click on [Add to Wallet] button at the top of the page. Alternatively, you can add the network manually using the RPC URL and chain details and add it to your wallet's network settings.

To send ETH on Syndr L3 Sepolia, ensure your wallet is connected to the Syndr L3 Sepolia network, enter the recipient's address, specify the amount of ETH to send, review the gas fee, and confirm the transaction in your wallet.

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Syndr L3 Sepolia

Faucet

Syndr L3 Sepolia Faucet

Chain Overview

Info

Chain ID

Native Token

RPC

RPC Latency

Latest Block

EIP-7702

Explorers

Syndr L3 Sepolia Testnet Explorer

thirdweb Products

Contracts

Frequently asked questions

What is Syndr L3 Sepolia and what are its primary use cases?

What makes Syndr L3 Sepolia unique compared to other blockchain networks?

What is the gas token used for Syndr L3 Sepolia, and how to get it?

How to bridge to Syndr L3 Sepolia network?

How to build on Syndr L3 Sepolia network?

How to add Syndr L3 Sepolia network to wallet?

How to send or receive ETH on the Syndr L3 Sepolia network?