L3 Chains on Mainnet

Production L3 chains live on mainnet

L3 chains on ADI Mainnet

ADI Mainnet hosts two production L3 chains. Both settle on ADI Mainnet, chain ID 36900. Both use ADI as their native gas token.

Chain	Chain ID	Use case	Runtime
Good Energy (Esyasoft)	999	Energy data anchoring	zksync-os/v0.13.0
Apeiro	37001	Healthcare claims verification	zksync-os/v0.13.0

Good Energy (Esyasoft)

Good Energy is the first zkSync OS L3 to reach mainnet. It anchors energy data onchain. The sequencer is producing blocks.

Property	Value
Chain ID	999
Settlement layer	ADI Mainnet, chain ID 36900
Native gas token	ADI
Runtime	zksync-os/v0.13.0

Network services

• Explorer: Good Energy Explorer

• Explorer API: Good Energy Explorer API

• Bridge: Good Energy Bridge

Apeiro

Apeiro verifies healthcare claims on a dedicated L3. The application has active production traffic.

As of July 21, 2026, the chain had processed more than 2,700 transactions across more than 45 addresses.

Property	Value
Chain ID	37001
Settlement layer	ADI Mainnet, chain ID 36900
Native gas token	ADI
Runtime	zksync-os/v0.13.0

Network services

• Explorer: Apeiro Explorer

• Blockscout Explorer: Apeiro Blockscout

• Bridge: Apeiro Bridge

Related documentation

See L3 Chains for L3 architecture and settlement flow. See Configuration Reference for the settlement-RPC configuration.