Attest

{'type': 'object', 'required': ['url', 'payTo', 'amount', 'asset', 'network'], 'properties': {'url': {'type': 'string', 'description': 'The endpoint URL you are about to pay.'}, 'asset': {'type': 'string', 'description': 'Asset contract address or symbol from the offer.'}, 'payTo': {'type': 'string', 'description': 'The payout address presented in the live 402 offer.'}, 'amount': {'type': 'string', 'description': 'The offered amount in atomic units, as a string.'}, 'scheme': {'type': 'string', 'description': 'Optional payment scheme (e.g. exact).'}, 'network': {'type': 'string', 'description': 'Network / chain identifier from the offer (e.g. base, solana).'}}}

{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'The endpoint URL to scan.'}}}