# zkBridge

> Track zkBridge with daily standardized on-chain data across 10 chains. Compare zkBridge with other bridges. See charts and datasets in one place. Updated daily.

Source: [zkBridge on Token Terminal](https://tokenterminal.com/explorer/projects/zkbridge). This page has no metric values. For current values, use the [Token Terminal API](https://tokenterminal.com/docs/api-reference/introduction) or the [MCP server](https://tokenterminal.com/docs/mcp/introduction).

- Sectors: Bridges
- Chains: arbitrum, avalanche, base, bsc, celo, ethereum, fantom, gnosis, optimism, polygon

## About

### What it is

zkBridge is a cross-chain bridge and messaging protocol built by Polyhedra Network. It uses zero-knowledge proofs to verify the consensus of a source chain on a destination chain through light-client contracts.

### Who uses it

Developed by Polyhedra Network.

### How it works

A relay network fetches block headers and generates validity proofs, which an updater contract on the destination chain verifies to maintain light-client state.

## Metrics

Token Terminal tracks these metrics for zkBridge daily. Each page has a chart with the full history.

- [Active addresses (daily)](https://tokenterminal.com/explorer/projects/zkbridge/metrics/active-addresses-daily)
- [Active addresses (weekly)](https://tokenterminal.com/explorer/projects/zkbridge/metrics/active-addresses-weekly)
- [Active addresses (monthly)](https://tokenterminal.com/explorer/projects/zkbridge/metrics/active-addresses-monthly)
- [Transaction count (contracts)](https://tokenterminal.com/explorer/projects/zkbridge/metrics/transaction-count-contracts)
- [Gas used](https://tokenterminal.com/explorer/projects/zkbridge/metrics/gas-used)

## Links

- [website](https://zkbridge.com/)