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Portal’s React Native SDK integrates with Blockaid to provide real-time security scanning for transactions, addresses, tokens, and URLs. This integration helps detect malicious activity, phishing attempts, scam tokens, and suspicious interactions before users sign or submit transactions.

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Overview

The Blockaid integration enables you to:
  • Scan transactions before signing or submission (EVM, Solana)
  • Scan addresses for known malicious actors or compromised contracts
  • Validate tokens to detect scams or security risks
  • Verify URLs to prevent phishing attacks

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Prerequisites

Before using Blockaid security scanning, ensure you have:
  • A properly initialized Portal client
  • Blockaid integration enabled in your Portal Dashboard (see Blockaid Integration)

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Scanning EVM Transactions

Use scanEVMTx to analyze Ethereum transactions before signing or broadcasting them. This method scans EVM transactions for malicious contract interactions, risky approvals, phishing attempts, and other on-chain security threats. 
async function scanEvmTransaction(portal: Portal) {
  const response = await portal.security.blockaid.scanEVMTx({
    from: '0x7C01728004d3F2370C1BBC36a4Ad680fE6FE8729',
    to: '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48',
    chain: 'eip155:1',
    data: '0x095ea7b3...',
    value: '0x0',
    gas: '0x2dc6c0',
    gasPrice: '0x2dc6c0',
    nonce: '0x924',
  })

  console.log('Blockaid EVM scan response:', response)
}

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Scanning Solana Transactions

Use scanSolanaTx to analyze Solana transactions before signing. This method detects malicious program invocations, suspicious token movements, and other Solana-specific risks. 
async function scanSolanaTransaction(portal: Portal) {
  const response = await portal.security.blockaid.scanSolanaTx({
    rawTransaction:
      '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',
  })

  console.log('Blockaid Solana scan response:', response)
}

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Scanning Addresses

Use scanAddress to analyze a single address for known security risks. This method can be used for both EVM and Solana addresses and detects malicious contracts, compromised wallets, sanctioned addresses, and other flagged entities. EVM Address Scan 
async function scanEvmAddress(portal: Portal) {
  const response = await portal.security.blockaid.scanAddress({
    chain: 'eip155:1',
    address: '0x31c05d73f2333b5a176cfdbb7c5ef96ec7bb04ac',
  })

  console.log('Blockaid EVM address scan response:', response)
}
Solana Address Scan 
async function scanSolanaAddress(portal: Portal) {
  const response = await portal.security.blockaid.scanAddress({
    chain: 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp',
    address: 'BBQUMqaFELxTFh8r1xSttYMHX6ZKzLWhsmGod2vuxgEc',
  })

  console.log('Blockaid Solana address scan response:', response)
}

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Scanning Tokens

Use scanTokens to analyze multiple tokens in a single request for known security risks. This method detects scam tokens, honeypots, compromised contracts, and other malicious token behavior. 
async function scanTokens(portal: Portal) {
  const response = await portal.security.blockaid.scanTokens({
    chain: 'eip155:1',
    tokens: [
      '0x66587563e933bbf3974b89156b47bb82b921eb35',
      '0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d',
    ],
  })

  console.log('Blockaid token scan response:', response)
}

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Scanning URLs

Use scanURL to detect phishing sites and malicious domains before users navigate to them. This method helps protect users from social engineering attacks and malicious off-chain activity. 
async function scanURL(portal: Portal) {
  const response = await portal.security.blockaid.scanURL({
    url: 'https://ethlen.com',
  })

  console.log('Blockaid URL scan response:', response)
}

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Next Steps