x402-sdk-for-solana

export const schemes = ["exact"] as const;export const x402Versions = [1] as const;export const ErrorReasons = [  "insufficient_funds",  "invalid_exact_evm_payload_authorization_valid_after",  "invalid_exact_evm_payload_authorization_valid_before",  "invalid_exact_evm_payload_authorization_value",  "invalid_exact_evm_payload_signature",  "invalid_exact_evm_payload_recipient_mismatch",  "invalid_exact_svm_payload_transaction",  "invalid_exact_svm_payload_transaction_amount_mismatch",  "invalid_exact_svm_payload_transaction_create_ata_instruction",  "invalid_exact_svm_payload_transaction_create_ata_instruction_incorrect_payee",  "invalid_exact_svm_payload_transaction_create_ata_instruction_incorrect_asset",  "invalid_exact_svm_payload_transaction_instructions",  "invalid_exact_svm_payload_transaction_instructions_length",  "invalid_exact_svm_payload_transaction_instructions_compute_limit_instruction",  "invalid_exact_svm_payload_transaction_instructions_compute_price_instruction",  "invalid_exact_svm_payload_transaction_instructions_compute_price_instruction_too_high",  "invalid_exact_svm_payload_transaction_instruction_not_spl_token_transfer_checked",  "invalid_exact_svm_payload_transaction_instruction_not_token_2022_transfer_checked",  "invalid_exact_svm_payload_transaction_not_a_transfer_instruction",  "invalid_exact_svm_payload_transaction_receiver_ata_not_found",  "invalid_exact_svm_payload_transaction_sender_ata_not_found",

1. Line 14 export const x402Versions = [1] as const;: Uses x402, an HTTP 402 pattern where an agent pays per request with an on-chain payment.
2. Line 32 "invalid_exact_svm_payload_transaction_instruction_not_spl_token_transfer_checked",: A checked token transfer, which also verifies the mint and decimals.
3. Line 33 "invalid_exact_svm_payload_transaction_instruction_not_token_2022_transfer_checked",: Targets the Token-2022 program instead of the original Token Program.

      ...init,      headers: {        ...(init.headers || {}),        "X-PAYMENT": paymentHeader,        "Access-Control-Expose-Headers": "X-PAYMENT-RESPONSE",      },      __is402Retry: true,    };     const secondResponse = await fetch(input, newInit);    return secondResponse;  };} export { decodeXPaymentResponse } from "../x402/shared/index.js";export { createSigner, type Signer, type MultiNetworkSigner, type X402Config } from "../x402/types/index.js";export { type PaymentRequirementsSelector } from "../x402/client/index.js";export type { Hex } from "viem";

1. Line 109 ...init,: Creates and pays for a new account. Space and payer must be specified.
2. Line 123 export { decodeXPaymentResponse } from "../x402/shared/index.js";: Uses x402, an HTTP 402 pattern where an agent pays per request with an on-chain payment.

  AccountMeta,  InstructionWithData,} from "@solana/kit";import {  parseSetComputeUnitLimitInstruction,  parseSetComputeUnitPriceInstruction,  COMPUTE_BUDGET_PROGRAM_ADDRESS,} from "@solana-program/compute-budget";import {  findAssociatedTokenPda,  identifyToken2022Instruction,  parseCreateAssociatedTokenInstruction,  parseTransferCheckedInstruction as parseTransferCheckedInstruction2022,  Token2022Instruction,  TOKEN_2022_PROGRAM_ADDRESS,} from "@solana-program/token-2022";import {  identifyTokenInstruction,  parseTransferCheckedInstruction as parseTransferCheckedInstructionToken,  TOKEN_PROGRAM_ADDRESS,  TokenInstruction,} from "@solana-program/token";import {  decodeTransactionFromPayload,

1. Line 35 identifyToken2022Instruction,: Targets the Token-2022 program instead of the original Token Program.
2. Line 37 parseTransferCheckedInstruction as parseTransferCheckedInstruction2022,: A checked token transfer, which also verifies the mint and decimals.