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Version: Endpoint V2 Docs

LayerZero Tools Overview

This section of the documentation covers three key resources that help developers inspect and integrate with LayerZero’s cross-chain infrastructure.

Below is a summary of what each tool does and when you might want to use it.

LayerZero Scan (UI)​

The LayerZero Scan overview page explains the web-based block explorer that showcases:

  • Cross-chain transactions (messages) in a unified interface
  • Source/destination chain details for any bridging operation
  • Individual transaction status (delivered, pending, or failed)
  • Address search to view bridging events associated with a particular user or contract

Use it if:

  • You need a visual way to check cross-chain TX status.
  • You want to see real-time bridging volume or debugging info for your messages.

LayerZero Scan Swagger API​

The API page documents the Swagger-based endpoints that expose the same cross-chain transaction data as the web UI, but in a programmatic manner:

  • GET /messages/{messageId} to fetch message details
  • GET /transactions/{chainKey}/{txHash} to see bridging logs for a particular chain TX
  • Query-based endpoints to filter or search messages by chain, status, or time

Use it if:

  • You want to automate cross-chain transaction queries (e.g., in a custom dashboard).
  • You need to poll or monitor message statuses at scale (like for bridging analytics or notifications).

LayerZero Endpoint Metadata​

The Endpoint Metadata page details a comprehensive JSON file that maps:

  • All known LayerZero chain deployments (bridging contract addresses, RPC endpoints, etc.)
  • Token metadata on each chain (addresses, decimals, pegging info)
  • DVNs (Decentralized Verifier Network addresses), chain explorers, environment flags, and more

It also explains how you can:

  • Programmatically configure bridging by reading the deployments or tokens fields.

Use it if:

  • You want to ensure you have the latest official addresses rather than manually hardcoding them.

Putting It All Together​

  • LayerZero Scan (web UI) → Quick visual debugging, real-time transaction lookup.
  • LayerZero Scan API → Programmatic cross-chain transaction data retrieval and stats.
  • Endpoint Metadata → Full listing of chain configs, bridging contracts, and tokens for advanced integrations or dynamic UIs.

Consider each tool a different piece of the puzzle:

  • The Scan explorer helps confirm if a bridging transaction arrived safely.
  • The Scan API helps you build your own custom dashboards or monitoring scripts.
  • The Endpoint Metadata ensures your application always references the correct bridging addresses, token definitions, etc., across all LayerZero-supported networks.

For more context on how bridging works under the hood, see the rest of our LayerZero documentation.