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Chain IDNetwork Name
1Ethereum Mainnet
56BNB Smart Chain

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Usage

Include the chain_id parameter in your request body: 
{
  "chain_id": "56",
  "block_height": "58083468",
  "evm_transactions": [...]
}
When making API requests, use the chain ID as a string value (e.g., "1" for Ethereum Mainnet or "56" for BNB Smart Chain).