An EVM-compatible canary network for Darwinia, Crab Network enables low-cost, Substrate-based cross-chain bridges and asset interoperability across Polkadot, Kusama, and Ethereum ecosystems.
Crab Network is the mainnet canary chain for Darwinia, built on Substrate and EVM-compatible, using the CRAB token for gas and staking. It is used for trust-minimized cross-chain asset transfers and message passing between Ethereum/BSC and Polkadot/Kusama, plus low-fee EVM dApps, DeFi, gaming, and NFT projects that need fast, production-grade bridging.
Crab stands out with light-client, on-chain verified bridges (no multisig custodians), a dual EVM + Substrate runtime, and Polkadot-style finality for safer cross-chain operations. Typical performance: ~6s block time, fees often under $0.01 (frequently <$0.001) in CRAB, practical throughput in the hundreds of TPS with burst capacity ~1,000+, and active bridge/dApp activity that makes it a low-cost production canary before deploying to Darwinia.
Crab Network uses CRAB as the gas token for transaction fees. You can obtain CRAB by bridging from other chains or purchasing using thirdweb Bridge.
To bridge CRAB to Crab Network, connect your wallet to thirdweb bridge, select your source chain, choose the token you want to bridge, select Crab Network as the destination, enter the amount, and confirm the transaction. The bridge will handle the cross-chain transfer instantly.
To build on Crab Network 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 Crab Network 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 CRAB on Crab Network, ensure your wallet is connected to the Crab Network network, enter the recipient's address, specify the amount of CRAB to send, review the gas fee, and confirm the transaction in your wallet.