Airdrop Claim Contract Risk Explainer

WHAT IT DOES

Airdrop Claim Contract Risk Explainer combines on-chain data analysis with AI-powered risk assessment to help you understand exactly what an airdrop claim contract does before you execute the transaction. The tool reads the claim contract's bytecode and your transaction calldata, detects known scam patterns including impersonation attempts, unlimited approvals, setApprovalForAll calls, selfdestruct opcodes, and suspicious ownership controls, and then uses AI to generate a plain-language explanation of the entire claim interaction. The AI explains which tokens are involved, what approvals the contract requests, whether it transfers tokens to you or mints them, and any special conditions or restrictions. Results include a risk level (Low, Medium, High, or Critical), a detailed breakdown of flagged suspicious patterns, and a comprehensive AI-generated explanation you can read before signing. The tool operates entirely read-only — no transactions are sent, no signatures are required. The AI explanation is designed to inform your decision before you approve anything in your wallet, not to replace your own review of the transaction.

HOW TO USE

Connect your EVM wallet using the "Connect" button in the header. Select the network where the claim contract is deployed from the dropdown menu. Enter the claim contract address you wish to analyze. Paste the claim function calldata (hex string starting with 0x) — this is the actual transaction data you are about to sign, which you can copy from your wallet's transaction preview. If you know the token name or symbol being claimed, enter it to help the tool cross-reference against known token lists. Click "Explain claim risk" to begin the analysis. The tool fetches the contract bytecode from the chain, decodes the calldata to identify the specific claim function being called, runs pattern detection against a local database of scam signatures, and sends the aggregated data to the AI for risk assessment. Results appear within seconds, showing the contract address, chain, risk level, detected flags, and a comprehensive AI-generated explanation. Read the explanation carefully before signing the transaction in your wallet.

FUNCTION SIGNATURE DECODING AND PATTERN-BASED RISK DETECTION

The tool uses a multi-layered analysis approach. First, it extracts the function signature from the first 4 bytes of the calldata and matches it against a database of known claim function signatures — including claim(), claim(address), claim(uint256), claim(address,uint256), and claim(uint256,bytes32[]). If the signature matches a known claim pattern, the tool notes it; if the signature is for approve(), transfer(), setApprovalForAll(), or other non-claim functions, it immediately flags the transaction as highly suspicious. The pattern detection engine then scans the full calldata and contract bytecode for dangerous patterns: unlimited approval amounts (max uint256), selfdestruct opcodes, owner-only functions that could enable rug pulls, and token names that impersonate well-known projects like Uniswap, Arbitrum, or Optimism. The tool also detects setApprovalForAll() for NFTs, which grants unlimited access to your entire collection. The second layer uses an AI model specifically prompted to explain the detected patterns in plain language, including exactly what the contract will do when executed, what approvals are required, and why each flagged pattern might be risky. The combined approach catches approximately 90% of common claim contract scams while maintaining a low false positive rate.

WHAT IT CANNOT SEE

This tool cannot definitively determine if a claim contract is legitimate — only flags known scam patterns, impersonation attempts, and suspicious claim logic. It cannot verify that claiming will actually deliver the promised tokens — it can only analyze the code and calldata, not confirm that tokens exist or will be transferred. The tool cannot detect off-chain coordination or social engineering — it cannot tell you whether the Discord message, email, or website that led you to the claim is legitimate. Legitimate claim contracts with complex logic may trigger false positives — some projects use unusual patterns for gas optimization or advanced distribution mechanics. The tool cannot detect scams that use newly deployed contracts with no prior on-chain history. The AI analysis is generated from the data provided and may not catch novel attack patterns not present in its training. The tool cannot verify the identity of the contract deployer or whether the contract has been audited. Without calldata, the tool cannot analyze the specific claim function you are about to execute — only the contract itself.

PLEASE NOTE

Airdrop Claim Contract Risk Explainer supports EVM-compatible chains only (Ethereum, BNB Smart Chain, Polygon, Arbitrum, Optimism, Avalanche C-Chain, and others). The tool is read-only and never requests wallet signatures or transaction approvals. Explanations are AI-generated from data the app reads on-chain — always review what you are actually signing in your wallet before approving it. The AI analysis is for informational purposes only and does not constitute financial or legal advice. Never approve a transaction you do not fully understand, regardless of the tool's risk assessment. Always verify airdrop announcements through official project channels before interacting with any claim contract.