debug_traceBlock

Returns the traces of all transactions in a block on Optimism Layer 2.

Parameters

1. Block RLP - DATA

   • The RLP-encoded block

2. Trace Configuration - OBJECT (optional)

   • Tracer configuration options

Implementation Examples

cURL

curl -X POST https://api-optimism-mainnet-archive.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "debug_traceBlock",
    "params": [
      "0xf90213f901ffa...",
      {"tracer": "callTracer"}
    ],
    "id": 1
  }'

JavaScript

const response = await fetch('https://api-optimism-mainnet-archive.n.dwellir.com/YOUR_API_KEY', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    jsonrpc: '2.0',
    method: 'debug_traceBlock',
    params: [
      "0xf90213f901ffa...", // Block RLP
      {tracer: "callTracer"}
    ],
    id: 1
  })
});

const data = await response.json();
console.log(data.result);

Response Example

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "type": "CALL",
      "from": "0x742d35cc6634c0532925a3b844bc9e7595f0beb",
      "to": "0x4200000000000000000000000000000000000006",
      "gasUsed": "0x5208"
    }
  ]
}

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Need help? Contact our support team or check the Optimism documentation.