Enhance your wallets' security with Blockaid

Portal’s Android 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.

Overview

The Blockaid integration enables you to:

Scan transactions before signing or submission (EVM, Solana, Tron)
Scan addresses for known malicious actors or compromised contracts
Validate tokens to detect scams or security risks
Verify URLs to prevent phishing attacks

Prerequisites

Before using Blockaid security scanning, ensure you have:

A properly initialized Portal client
Blockaid integration enabled in your Portal Dashboard

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.

lifecycleScope.launch {
    try {
        val transactionData = BlockaidScanEVMTransactionData(
            from = "0x7C01728004d3F2370C1BBC36a4Ad680fE6FE8729",
            to = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
            data = "0x095ea7b3...",
            value = "0x0",
            gas = "0x2dc6c0",
            gasPrice = "0x2dc6c0",
            nonce = "0x924"
        )
        
        val request = BlockaidScanEVMRequest(
            chain = "eip155:1",
            data = transactionData,
            options = listOf(BlockaidScanEVMOption.SIMULATION, BlockaidScanEVMOption.VALIDATION)
        )
        
        val result = portal.security.blockaid.scanEVMTx(request)

        result.onSuccess { response ->
            val rawResponse = response.data?.rawResponse
            println("Chain: ${rawResponse?.chain}")
            println("Block: ${rawResponse?.block}")

            rawResponse?.validation?.let { validation ->
                println("Validation Status: ${validation.status}")
                println("Result Type: ${validation.resultType}")

                if (validation.resultType == "Malicious") {
                    println("⚠️ Transaction flagged as MALICIOUS")
                } else {
                    println("✅ Transaction appears safe")
                }
            }
        }.onFailure { error ->
            println("Blockaid EVM Scan failed: ${error.message}")
        }

    } catch (e: Exception) {
        println("Error scanning EVM transaction: ${e.message}")
    }
}

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.

lifecycleScope.launch {
    try {
        val transactions = listOf(
            "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"
        )
        
        val request = BlockaidScanSolanaRequest(
            accountAddress = "86xCnPeV69n6t3DnyGvkKobf9FdN2H9oiVDdaMpo2MMY",
            transactions = transactions,
            encoding = BlockaidScanSolanaEncoding.BASE64,
            chain = "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
            options = listOf(BlockaidScanSolanaOption.SIMULATION, BlockaidScanSolanaOption.VALIDATION),
            method = "signAndSendTransaction"
        )
        
        val result = portal.security.blockaid.scanSolanaTx(request)

        result.onSuccess { response ->
            val rawResponse = response.data?.rawResponse
            println("Status: ${rawResponse?.status ?: "Unknown"}")

            rawResponse?.result?.validation?.let { validation ->
                println("Result Type: ${validation.resultType}")

                if (validation.resultType == "Malicious") {
                    println("⚠️ Transaction flagged as MALICIOUS")
                } else {
                    println("✅ Transaction appears safe")
                }
            }
        }.onFailure { error ->
            println("Blockaid Solana Scan failed: ${error.message}")
        }

    } catch (e: Exception) {
        println("Error scanning Solana transaction: ${e.message}")
    }
}

Scanning Tron Transactions

Use scanTronTx to analyze Tron transactions before signing. This method detects malicious smart contract interactions, suspicious token movements, and other Tron-specific security risks.

scanTronTx is only supported on Tron mainnet (tron:mainnet). Passing a testnet chain identifier such as tron:shasta or tron:nile returns a failed Result (surfaced through the onFailure callback) without calling Blockaid.

lifecycleScope.launch {
    try {
        val transactionData = BlockaidScanTronTransactionData(
            from = "TKhJBwsH7hvegxrUHW4oHT5t1BUDds2UG4",
            to = "TMacq4TDUw5q8NFBwmbY4RLXvzvG5JTkvi",
            data = "0xa9059cbb000000000000000000000041...",
            value = "0x0"
        )

        val request = BlockaidScanTronRequest(
            chain = "tron:mainnet",
            accountAddress = "TKhJBwsH7hvegxrUHW4oHT5t1BUDds2UG4",
            data = transactionData,
            options = listOf(BlockaidScanTronOption.SIMULATION, BlockaidScanTronOption.VALIDATION)
        )

        val result = portal.security.blockaid.scanTronTx(request)

        result.onSuccess { response ->
            val rawResponse = response.data?.rawResponse
            println("Chain: ${rawResponse?.chain}")
            println("Block: ${rawResponse?.block}")

            rawResponse?.validation?.let { validation ->
                println("Validation Status: ${validation.status}")
                println("Result Type: ${validation.resultType}")

                if (validation.resultType == "Malicious") {
                    println("⚠️ Transaction flagged as MALICIOUS")
                } else {
                    println("✅ Transaction appears safe")
                }
            }
        }.onFailure { error ->
            println("Blockaid Tron Scan failed: ${error.message}")
        }

    } catch (e: Exception) {
        println("Error scanning Tron transaction: ${e.message}")
    }
}

The request object maps to the following fields:

Field	Type	Required	Description
`chain`	`String`	Yes	Must be `tron:mainnet`
`accountAddress`	`String?`	No	Sender’s Tron address (Base58 format, starts with `T`)
`data.from`	`String?`	No	Sender address (Base58 format)
`data.to`	`String?`	No	Recipient address (Base58 format)
`data.data`	`String?`	No	Encoded contract call data (hex)
`data.value`	`String?`	No	Amount of TRX to transfer (hex)
`metadata`	`BlockaidScanTronMetadata?`	No	Dapp or non-dapp context for the transaction
`options`	`List<BlockaidScanTronOption>?`	No	Analysis types to run: `SIMULATION`, `VALIDATION`, or both

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

lifecycleScope.launch {
    try {
        val request = BlockaidScanAddressRequest(
            address = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", // USDC
            chain = "eip155:1"
        )

        val result = portal.security.blockaid.scanAddress(request)

        result.onSuccess { response ->
            val rawResponse = response.data?.rawResponse
            println("Result Type: ${rawResponse?.resultType}")

            rawResponse?.features?.forEach { feature ->
                println("Feature: [${feature.type}] ${feature.featureId}: ${feature.description}")
            }
        }.onFailure { error ->
            println("EVM Address Scan failed: ${error.message}")
        }

    } catch (e: Exception) {
        println("Error scanning EVM address: ${e.message}")
    }
}

Solana Address Scan

lifecycleScope.launch {
    try {
        val request = BlockaidScanAddressRequest(
            address = "So11111111111111111111111111111111111111112", // Wrapped SOL
            chain = "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
        )

        val result = portal.security.blockaid.scanAddress(request)

        result.onSuccess { response ->
            val rawResponse = response.data?.rawResponse
            println("Result Type: ${rawResponse?.resultType}")

            rawResponse?.features?.forEach { feature ->
                println("Feature: [${feature.type}] ${feature.featureId}: ${feature.description}")
            }
        }.onFailure { error ->
            println("Solana Address Scan failed: ${error.message}")
        }

    } catch (e: Exception) {
        println("Error scanning Solana address: ${e.message}")
    }
}

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.

lifecycleScope.launch {
    try {
        val tokens = listOf(
            "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", // WETH
            "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"  // USDC
        )

        val request = BlockaidScanTokensRequest(
            chain = "eip155:1",
            tokens = tokens
        )

        val result = portal.security.blockaid.scanTokens(request)

        result.onSuccess { response ->
            val resultsCount = response.data?.rawResponse?.results?.size ?: 0
            println("Results count: $resultsCount")

            response.data?.rawResponse?.results?.forEach { (address, tokenResult) ->
                println("Token: $address")
                println("  Result Type: ${tokenResult.resultType}")

                tokenResult.maliciousScore?.let {
                    println("  Malicious Score: $it")
                }

                tokenResult.metadata?.let { metadata ->
                    println("  Name: ${metadata.name ?: "Unknown"}")
                    println("  Symbol: ${metadata.symbol ?: "Unknown"}")
                }

                tokenResult.features?.forEach { feature ->
                    println("  Feature: [${feature.type}] ${feature.featureId}: ${feature.description}")
                }

                if (tokenResult.resultType == "Malicious") {
                    println("  ⚠️ Token is MALICIOUS")
                }
            }
        }.onFailure { error ->
            println("Blockaid Token Scan failed: ${error.message}")
        }

    } catch (e: Exception) {
        println("Error scanning tokens: ${e.message}")
    }
}

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.

lifecycleScope.launch {
    try {
        val request = BlockaidScanURLRequest(
            url = "https://app.uniswap.org"
        )

        val result = portal.security.blockaid.scanURL(request)

        result.onSuccess { response ->
            val rawResponse = response.data?.rawResponse
            val status = rawResponse?.status ?: "Unknown"
            val isMalicious = rawResponse?.isMalicious ?: false

            println("URL: https://app.uniswap.org")
            println("Status: $status")
            println("Is Malicious: $isMalicious")

            if (status == "hit") {
                if (isMalicious) {
                    println("⚠️ URL flagged as MALICIOUS")
                } else {
                    println("✅ URL appears safe")
                }

                rawResponse?.maliciousScore?.let {
                    println("Malicious Score: $it")
                }
                rawResponse?.isWeb3Site?.let {
                    println("Is Web3 Site: $it")
                }
                rawResponse?.isReachable?.let {
                    println("Is Reachable: $it")
                }
            } else if (status == "miss") {
                println("ℹ️ URL not in database (miss)")
            }
        }.onFailure { error ->
            println("Blockaid URL Scan failed: ${error.message}")
        }

    } catch (e: Exception) {
        println("Error scanning URL: ${e.message}")
    }
}

Error Handling

All Blockaid scan methods return a Result type that can be handled using Kotlin’s onSuccess and onFailure callbacks. You should always handle both success and failure cases to ensure robust error handling.

lifecycleScope.launch {
    try {
        val result = portal.security.blockaid.scanEVMTx(request)

        result.onSuccess { response ->
            // Handle successful response
            val rawResponse = response.data?.rawResponse
            // Process the response...
        }.onFailure { error ->
            // Handle error
            println("Blockaid scan failed: ${error.message}")
        }

    } catch (e: Exception) {
        // Handle any unexpected exceptions
        println("Unexpected error: ${e.message}")
    }
}

Next Steps

Learn about signing transactions
Explore transaction evaluation
Review Portal API methods
Check out the Blockaid Integration setup

Getting Started

SDKs

APIs

Integrations

Resources

Enhance your wallets' security with Blockaid

Overview

Prerequisites

Scanning EVM Transactions

Scanning Solana Transactions

Scanning Tron Transactions

Scanning Addresses

EVM Address Scan

Solana Address Scan

Scanning Tokens

Scanning URLs

Error Handling

Next Steps

​Overview

​Prerequisites

​Scanning EVM Transactions

​Scanning Solana Transactions

​Scanning Tron Transactions

​Scanning Addresses

​EVM Address Scan

​Solana Address Scan

​Scanning Tokens

​Scanning URLs

​Error Handling

​Next Steps

Overview

Prerequisites

Scanning EVM Transactions

Scanning Solana Transactions

Scanning Tron Transactions

Scanning Addresses

EVM Address Scan

Solana Address Scan

Scanning Tokens

Scanning URLs

Error Handling

Next Steps