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debug_traceTransaction - Moonbeam RPC Method

Trace a transaction execution on Moonbeam. Requires archive node for debugging cross-chain DeFi, multi-chain dApps, and Ethereum-to-Polkadot bridging via XCM, Axelar, LayerZero, and Wormhole.

Traces a transaction execution on Moonbeam by transaction hash.

Archive Node Required

This method requires an archive node. It is not available on full nodes.

Use Cases

  • Transaction debugging - Understand exactly what happened
  • Failure analysis - Find where and why a transaction reverted
  • Gas optimization - Analyze gas usage for cross-chain DeFi, multi-chain dApps, and Ethereum-to-Polkadot bridging via XCM, Axelar, LayerZero, and Wormhole

Tracer Options

  • {} - Default opcode tracer (verbose)
  • { tracer: "callTracer" } - Call tree tracer
  • { tracer: "prestateTracer" } - Pre-state tracer

Code Examples

debug_traceCall

Trace a call without creating a transaction on Moonbeam. Simulate transactions, debug contract interactions, and analyze gas usage with full execution traces.

eth_chainId

Get the chain ID for Moonbeam. Essential for transaction signing and network verification.

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Use Cases
Tracer Options
Code Examples
Related Methods