Scroll Native Bridge (scroll-bridge)

Official Scroll zkEVM bridge via L1ScrollMessenger and L1GatewayRouter. Deposits ETH and ERC-20 tokens with ZK proof-based finality.

Fact	Value
Category	Bridges
Family	none
Namespace	`ScrollBridge` on ethereum, scroll
Chains	ethereum, scroll

Notes

L1 to L2 via GatewayRouter (for token deposits) or L1ScrollMessenger (for arbitrary messages)
zkEVM architecture — withdrawals finalize with ZK proofs (faster than optimistic rollups, typically hours not days)
GatewayRouter auto-routes tokens to the correct gateway (standard ERC-20, WETH, custom gateways)
msg.value must include gas fees for L2 execution (even for ERC-20 deposits)
L1 to L2 deposits finalize after ZK proof generation (~1-4 hours)
L2 to L1 withdrawals also require ZK proof finalization (~1-4 hours)
Canonical bridge, secured by Scroll’s ZK proving system

On Ethereum, ScrollBridge is a namespace: its contracts need no import.

function main() {
  // Ethereum's l1GatewayRouter, `0xF8B1378579659D8F7EE5f3C929c2f3E332E41Fd6`.
  require(ScrollBridge.L1GatewayRouter != 0);
}

Chain	Contract	Address	In a program
Ethereum	l1GatewayRouter	`0xF8B1378579659D8F7EE5f3C929c2f3E332E41Fd6`	`ScrollBridge.L1GatewayRouter`
Ethereum	l1ScrollMessenger	`0x6774Bcbd5ceCeF1336b5300fb5186a12DDD8b367`	`ScrollBridge.L1ScrollMessenger`
Scroll	l2GatewayRouter	`0x4C0926FF5252A435FD19e10ED15e5a249Ba19d79`	`ScrollBridge.L2GatewayRouter`
Scroll	l2ScrollMessenger	`0x781e90f1c8Fc4611c9b7497C3B47F99Ef6969CbC`	`ScrollBridge.L2ScrollMessenger`

import ScrollL1GatewayRouterABI from "./protocols/scroll-bridge/ScrollL1GatewayRouterABI.json"; Speaks for: l1GatewayRouter.

import ScrollL1MessengerABI from "./protocols/scroll-bridge/ScrollL1MessengerABI.json"; Speaks for: l1ScrollMessenger.

sendMessage(address to, uint256 value, bytes message, uint256 gasLimit) payable