Arbitrum MCP Server

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arbtrace_replayBlockTransactions

Replay and trace all transactions within a specific block for detailed analysis or debugging on Arbitrum networks. Requires trace API support.

Instructions

Replay and trace all transactions in a specific block (requires trace API)

Input Schema

Name	Required	Description
`blockNumOrHash`	Yes	Block number or hash to replay
`chainName`	No	Chain name (e.g., 'Xai', 'Arbitrum One') - will auto-resolve to RPC URL
`rpcUrl`	No	The RPC URL of the Arbitrum node (optional if default is set)
`traceTypes`	No	Array of trace types (e.g., ['trace', 'stateDiff'])

Input Schema (JSON Schema)

{
  "properties": {
    "blockNumOrHash": {
      "description": "Block number or hash to replay",
      "type": "string"
    },
    "chainName": {
      "description": "Chain name (e.g., 'Xai', 'Arbitrum One') - will auto-resolve to RPC URL",
      "type": "string"
    },
    "rpcUrl": {
      "description": "The RPC URL of the Arbitrum node (optional if default is set)",
      "type": "string"
    },
    "traceTypes": {
      "description": "Array of trace types (e.g., ['trace', 'stateDiff'])",
      "items": {
        "type": "string"
      },
      "type": "array"
    }
  },
  "required": [
    "blockNumOrHash"
  ],
  "type": "object"
}

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