x402

Types for x402 monetization features

PaymentRequirement

Defines a single payment requirement within a payment instruction.

type PaymentRequirement = {
  asset: string;
  pay_to: string;
  network: "base" | "base-sepolia" | "eip155:8453" | "eip155:84532";
  amount: string;
  description?: string;
};

Property	Type	Description
asset	string	The USDC token contract address for the network (e.g., 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 for Base)
pay_to	string	The wallet address to receive payments
network	"base" | "base-sepolia" | "eip155:8453" | "eip155:84532"	The blockchain network for transactions. Accepts friendly names or EIP-155 chain IDs
amount	string	The amount required in USDC smallest units (6 decimals). Example: "10000" = $0.01
description	string	Optional description for this requirement

PaymentInstruction

Represents a complete payment instruction with all its requirements.

type PaymentInstruction = {
  id: string;
  version: number;
  payment_requirements: PaymentRequirement[];
  name: string;
  description?: string;
  created_at: string;
};

Property	Type	Description
id	string	Unique identifier for the payment instruction
version	number	Version number of the instruction
payment_requirements	PaymentRequirement[]	Array of payment requirements
name	string	Name of the payment instruction
description	string	Optional description
created_at	string	ISO timestamp of creation

CreatePaymentInstructionRequest

Request body for creating a new payment instruction.

type CreatePaymentInstructionRequest = {
  name: string;
  payment_requirements: PaymentRequirement[];
  description?: string;
};

UpdatePaymentInstructionRequest

Request body for updating an existing payment instruction.

type UpdatePaymentInstructionRequest = {
  name?: string;
  payment_requirements?: PaymentRequirement[];
  description?: string;
};

PaymentInstructionListQuery

Query parameters for listing payment instructions.

type PaymentInstructionListQuery = {
  limit?: number;
  pageToken?: string;
  cid?: string;
  name?: string;
  id?: string;
};

Property	Type	Description
limit	number	Maximum number of results to return
pageToken	string	Pagination token for next page
cid	string	Filter by associated CID
name	string	Filter by instruction name
id	string	Filter by instruction ID

PaymentInstructionListResponse

Response structure for listing payment instructions.

type PaymentInstructionListResponse = {
  data: {
    payment_instructions: PaymentInstruction[];
    next_page_token?: string;
  };
};

PaymentInstructionResponse

Response structure for single payment instruction operations.

type PaymentInstructionResponse = {
  data: PaymentInstruction;
};

PaymentInstructionDeleteResponse

Response structure for delete operations.

type PaymentInstructionDeleteResponse = {
  data: {};
};

CidListQuery

Query parameters for listing CIDs associated with a payment instruction.

type CidListQuery = {
  limit?: number;
  pageToken?: string;
};

CidListResponse

Response structure for listing CIDs.

type CidListResponse = {
  data: {
    cids: string[];
    next_page_token?: string;
  };
};

CidAssociation

Represents a CID associated with a payment instruction.

type CidAssociation = {
  payment_instruction_id: string;
  cid: string;
  created_at: string;
};

Property	Type	Description
payment_instruction_id	string	ID of the associated payment instruction
cid	string	The IPFS CID
created_at	string	ISO timestamp of when the association was created

CidAssociationResponse

Response structure for adding a CID to a payment instruction.

type CidAssociationResponse = {
  data: CidAssociation;
};

CidRemoveResponse

Response structure for removing a CID from a payment instruction.

type CidRemoveResponse = {
  data: {};
};