About & Methodology

ChainScanner is a read-only address intelligence service. Given any wallet address, it produces a cross-network report of balances, token holdings, active approval exposure and reputation flags — the same data a block explorer shows, aggregated across chains in a single pass.

What a scan does

EVM addresses (0x…) are queried in parallel across Ethereum, Base, Polygon, Arbitrum, Optimism and BNB Chain:

Native balance via public JSON-RPC nodes
Full ERC-20 holdings via public indexer data, including dust and spam-token detection
Active token allowances toward known spender contracts (DEX routers, Permit2) verified on-chain
USD valuation via public market pricing

TRON addresses (T…) return account status, TRX balance, energy allocation, TRC-20 holdings and USDT allowance data from network nodes.

Every address, held token contract and spender is matched against the ChainScanner flag database — a curated list of reported scam, drainer and phishing entities.

Network coverage

Network	Balances	Token discovery	Approvals
Ethereum	✓	Full	✓
Base	✓	Full	✓
Polygon	✓	Full	✓
Arbitrum	✓	Full	✓
Optimism	✓	Full	✓
BNB Chain	✓	Major tokens	✓
TRON	✓	TRC-20 + energy	USDT allowance

Data sources

Public blockchain RPC nodes (balances, allowances, contract reads)
Public indexer data (token holdings, metadata, token reputation)
Public market pricing for USD valuation
ChainScanner flag database (operator-reviewed reports)

All sources are public ledger data. Results are cached for 5 minutes.

Limitations

Approval checks cover known major spender contracts; a complete historical allowance audit requires archival indexers and is on the roadmap. Dust marking applies to positions under $0.01. A "clean" result is not a guarantee — always verify counterparties independently.

Scanner · Wallet Screening · API Docs · Privacy · Terms