Synapse Interchain Network Testnet

The Synapse Interchain Network Testnet is live, deployed to the Synapse Chain Testnet, Arbitrum Sepolia, and Ethereum Sepolia. Reach out in Discord for additional testnet chain support.

The Contracts are deployed on all chains to the same addresses:

Contract NameAddressDescription


Sends messages to other chains.


Executes messages sent on other chains.

View Synapse Chain Network Information

View Ethereum Sepolia Network Information

View Arbitrum Sepolia Network Information

Learn how to build on top of the SIN, or reach out in Discord

pageBuild on the Synapse Interchain Network

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