Neynar Documentation

Addresses

The Farcaster contracts are deployed on Optimism and Base mainnet. There are no testnet deployments. Optimism:

Contract	Optimism Address	Etherscan Link
Id Registry	`0x00000000fc6c5f01fc30151999387bb99a9f489b`	link
Key Registry	`0x00000000Fc1237824fb747aBDE0FF18990E59b7e`	link
Storage Registry	`0x00000000fcCe7f938e7aE6D3c335bD6a1a7c593D`	link
IdGateway	`0x00000000fc25870c6ed6b6c7e41fb078b7656f69`	link
KeyGateway	`0x00000000fc56947c7e7183f8ca4b62398caadf0b`	link
Bundler	`0x00000000fc04c910a0b5fea33b03e0447ad0b0aa`	link

Base:

Contract	Base Address	Etherscan Link
Tier Registry	`0x00000000fc84484d585C3cF48d213424DFDE43FD`	link

ABIs

The ABIs for the contracts are available via etherscan links above, or from the @farcaster/core package.