Architecture Overview

The relayer sits between Etherlink dApps and the Tezos L1, acting as a translation layer that maps EVM calls to Tezos operations.

Flow diagram

Components

Component	Role
RelayerProvider	Implements EIP1193Provider, handles all window.ethereum calls
BeaconClient	Connects to Temple wallet via Beacon SDK
TezlinkClient	Sends operations to Tezos L1 via Tezlink RPC
GatewayBuilder	Builds Micheline calldata for the NAC gateway
EIP-6963 announcer	Broadcasts provider info for modern dApp wallet pickers

Address derivation

Every tz1 address has a deterministic EVM alias:

tz1 → SHA3(prefix + tz1_bytes) → 0xAlias

This alias is computed by the Tezlink RPC via tez_getEthereumTezosAddress and used as the account returned by eth_requestAccounts.