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Smart Contract Scanner

A comprehensive smart contract analysis tool for security scanning, function exploration, and code verification.

Contract Scanner

Enter a contract address to analyze its security, ownership, and potential risks

Installation

Run the following command to add the Smart Contract Scanner component to your project:

npx shadcn@latest add https://w3-kit.com/registry/smart-contract-scanner.json

This will:

  • Create the component in your components/ui directory
  • Add all necessary dependencies to your package.json
  • Set up required configuration files
  • Add contract scanning utilities to your project

Error Handling

The Smart Contract Scanner component provides comprehensive error handling through the onError callback and the ContractError enum.

Error Types

  • INVALID_ADDRESS: The provided address doesn't match the Ethereum address format
  • NOT_FOUND: The contract address doesn't exist on the blockchain
  • NOT_VERIFIED: The contract exists but isn't verified
  • NETWORK_ERROR: Connection issues with the blockchain provider
  • SCAN_FAILED: General scanning failure
  • RATE_LIMIT: API rate limit exceeded
  • TIMEOUT: Request timeout
  • UNKNOWN: Unspecified error

Example Error Handler

// Example error handler with different responses per error type
const handleContractError = (error: ContractError) => {
  switch(error) {
    case ContractError.INVALID_ADDRESS:
      showNotification("Please enter a valid Ethereum address");
      break;
    case ContractError.NOT_FOUND:
      showNotification("Contract not found on this network");
      break;
    case ContractError.NOT_VERIFIED:
      showNotification("This contract is not verified", "warning");
      break;
    case ContractError.NETWORK_ERROR:
      showNotification("Network connection error. Please try again", "error");
      break;
    case ContractError.RATE_LIMIT:
      showNotification("Too many requests. Please wait and try again", "error");
      break;
    default:
      showNotification("An error occurred while scanning the contract", "error");
  }
};
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