Paste first
Scan the contract. Read the patterns.
No chain dropdown. Paste a mint, 0x address, or XRPL classic address starting with r. Base58 is Solana. 0x plus 40 hex is EVM. r... with a valid checksum is XRPL.
Chains · discoverability only
One paste box, six chains
Solana, Ethereum, Base, Arbitrum, Robinhood Chain, and XRPL. The row under the box is a billboard - it never gates the scan.
XRPL is not EVM
No bytecode. Guardian reads issuer flags, TransferRate, trust lines, Domain.toml, and XLS-30 AMM pools from public nodes.
Agents pay over x402
Every check is mirrored at /api/scan/evm/{chain}/{address}, /api/scan/solana/{address}, and /api/scan/xrpl/{issuer}.