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Community CAS

This page contains a list of free Ceramic Anchor Services (CAS) hosted by 3Box Labs and made available for the community. The CAS referenced below are hardcoded into every Ceramic node and will be automatically used depending on the node's network configuration; no additional setup is needed.

At this time it is not possible to run your own CAS, however this functionality will be available in the near future.

Mainnet CAS

Nodes connected to Mainnet will automatically use this CAS which generates anchor commits using the Ethereum Mainnet blockchain (eip155:1) and communicates over the /ceramic/mainnet libp2p topic.

Mainnet usage is currently restricted to projects in the Early Launch program (ELP). Sign up for the ELP waitlist here.

ETH Mainnet Address:

0xaf65E45F4C0BD388F91EeB23cFCd52F4fCdd6Ee2

To view Mainnet CAS transactions, see Etherscan.

Clay Testnet CAS

Nodes connected to Clay Testnet will automatically use this CAS which generates anchor commits using the Ethereum Ropsten blockchain and communicates over the /ceramic/testnet-clay libp2p topic.

ETH Ropsten Address:

0x1C124c86f7fc22e67974337E889a513b16a5703f

To view Clay Testnet CAS transactions, see Etherscan.

Dev Unstable CAS

Nodes connected to the Dev Unstable network will use this CAS which generates anchor commits using the Ethereum Rinkeby blockchain and communicates over the /ceramic/dev-unstable libp2p topic.

ETH Rinkeby Address:

0x41Ee0C359D95970A83229D8e9801cc2672390217

To view Dev Unstable CAS transactions, see Etherscan.