Approval Signature Deep Explainer

WHAT IT DOES

The Approval Signature Deep Explainer provides a detailed, multi‑factor explanation of a pending approve() or setApprovalForAll() transaction before you sign. You enter the token address, spender address, and allowance amount—the tool reads the token symbol, your current balance, your current allowance for that spender, the spender’s contract code and verification status, and estimates the gas cost using eth_estimateGas and eth_gasPrice. It then uses AI to generate a deep explanation covering what the approval authorizes, whether it’s new or a renewal, whether it’s unlimited or capped, how it compares to your balance, the spender type, the estimated gas cost, and a final risk assessment.

HOW TO USE

1. Connect your EVM wallet (required to read your balance, allowance, and gas estimates).

2. Select the chain (Ethereum, Polygon, or Arbitrum).

3. Enter the token contract address, spender address, and allowance amount.

4. Optionally set the token decimals (defaults to 18).

5. Click "Explain deeply" to fetch all data and generate a deep explanation.

6. Review the comprehensive breakdown, gas cost estimate, and AI risk assessment.

7. The wallet's own signature prompt will still appear—this tool only informs you.

THE REAL MECHANISM — comprehensive on‑chain data collection with AI‑powered synthesis

This tool reads from multiple on‑chain sources: `symbol()` for the token name, `balanceOf()` for your current balance, `allowance()` for your current approved amount, `eth_getCode` for spender contract detection and verification status, and `eth_estimateGas` plus `eth_gasPrice` to compute the estimated gas cost in ETH. It builds a detailed structured prompt for the AI bridge (BGAI.generate) containing all these factors—token, spender, allowance, balance, current allowance, spender verification status, gas cost, and whether it's a renewal or new approval. The AI returns a comprehensive explanation that synthesizes these factors into a clear, actionable assessment.

WHAT IT CANNOT SEE

- This tool cannot read the exact intent behind the approval—only the on‑chain parameters.

- It cannot determine if the spender contract is malicious with certainty.

- It cannot detect approvals that are submitted through a wallet interface without page interaction.

- It cannot read off‑chain agreements or promises related to the approval.

- It cannot decode custom function signatures that are not in the standard ABI set.

- It cannot prevent you from signing a transaction—it only provides information.

PLEASE NOTE

- This tool works on Ethereum (1), Polygon (137), and Arbitrum (42161).

- Gas cost estimates are approximate and may vary at the time of execution.

- The AI explanation is generated from the data you provide and is for guidance only. Always review the actual transaction details in your wallet before signing.

- The wallet's own signature prompt is what actually protects you—the AI's read is not a substitute for reviewing what you sign.