CryptoX402PaymentInput¶
Structure Class¶
dataclass
¶
The input for a crypto X402 payment.
Attributes¶
class-attribute
instance-attribute
¶
payload: Document = field(repr=False)
The X402 payment payload.
class-attribute
instance-attribute
¶
permit2_allowance_limit: str | None = None
The maximum on-chain Permit2 allowance to grant before signing the
payment authorization, in the asset's smallest denomination. This field
is valid only for the upto (metered) scheme; supplying it for the
exact scheme returns a validation error.
When set, the service approves an ERC-20 allowance for this amount
before processing the payment. The approval sets, rather than adds to,
the wallet's allowance. Set this field only when the wallet needs
approving, for example on its first upto payment, to avoid a redundant
on-chain transaction. Omit the field to skip allowance handling. This is
the default, and the only behavior for the exact scheme.