Shardeum is an EVM-based, linearly scalable smart contract platform that maintains true decentralization and solid security through dynamic state sharding. This means Shardeum can increase its TPS capacity with each validator added to the network to retain low gas fees forever.  In many state sharded blockchains, developers face challenges as they don’t retain atomic composability across shards. However, Shardeum uses a novel architecture where atomic composability is retained. Shardeum provides the highest throughput capacity of any EVM based L1 without sacrificing decentralization.


Rinkeby is a staging blockchain for Ethereum DApp and smart contract developers to test and optimize their smart contracts before going live in Eth-main.The Rinkeby dashboard features a faucet to dispense test ETH tokens for pseudo transactions, and a block explorer to facilitate analysis when creating Solidity smart contracts and executing transactions.


Sepolia is a stable Ethereum testnet that merged from Proof of Work to Proof of Stake along with the Ethereum mainnet and serves developers with the infrastructure to deploy and test Solidity smart contracts.Sepolia has a faucet service to ensure developers only use Sepolia ETH for gas when staging DApps on the testnet.

Solana Devnet

Solana Devnet is made from a recognized set of validators that host the ledger and infrastructure to run test transactions.Developers can use the SOL faucet service to fund their Phantom wallets and pay for gas when interacting with smart contracts deployed on the testnet.Devnet features the latest features or the stable mainnet but uses fake SOL fortransactions.

Arbitrum Goerli

Officially the Nitro Goerli Rollup Testnet (421613), is now the primary, stableArbitrum testnet moving forward. As of late 2022, developers and validator node runners can now use Infura,QuickNode, and Alchemy,  to interact with Arbitrum One, which is in main beta, including the admin controls.

Gnosis Chain

The Ethereum sidechain that’s the native infrastructure for the Gnosis DApp ecosystem of protocols, Vaults, and many other projects.You can join the community by setting up a validator to improve the accessibility and resilience of the Gnosis Chain.Solidity developers can immediately leverage the fast block times and low gasfees to build elaborate smart contracts for their own use cases.


The Skale network (token: SKL) is a blockchain that provides file storage, appserver, and communication capabilities while pooling security features from Ethereum and other chains.Web3 companies can use the Skale network for smoother onboarding and proofing ofideas on the gasless infrastructure.


Polkadot is both a token and a decentralized protocol that can be bought and sold on exchanges like Coinbase or Binance.The Polkadot protocol allows unrelated blockchains to securely communicate withone another,  for example, enabling value or data to flow between Ethereum andBitcoin blockchains without the need for an intermediary. It’s also intended to be fast and scalable, thanks to the use of numerousparallel blockchains offloading processing demands.


Metis’ Layer 2 network, which bundles Ethereum transactions and processes them off-chain then returns them to Ethereum for recording, aims to improve Ethereum scalability. Metis provides an NFT bridge between its Andromeda network and Ethereum, NFTstorage, a framework for its DAO, decentralized autonomous companies (DACs), andmiddleware to help developers manage their smart contracts. The Metis token (METIS) is used in the Metis ecosystem for staking andtransaction fees.


Near Protocol is a blockchain network at layer 1. It provides a platform for developers to create decentralized applications (dapps).Near Protocol is both faster and less expensive than Ethereum. More importantly,it is expected to be faster than some of the other major competitors. Near isexpected to be able to process up to 100,000 transactions per second once fullyimplemented (TPS).