Cross-Chain Balance Checker: Aggregate native balance and token/NFT counts for an address across eth, arb, base, polygon, opt. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/cross_chain_balance.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.002000 USDC | 0x90b0...8d84 |