@coinbase/cdp-sdk/_types/x402/account-signers.d.ts

SDK for interacting with the Coinbase Developer Platform Wallet API

import type { EvmAccount } from "../accounts/evm/types.js";
import type { SignTypedDataOptions } from "../client/evm/evm.types.js";
import type { TransactionSigner } from "@solana/kit";
import type { ClientEvmSigner } from "@x402/evm";
import type { Address, Hex } from "viem";
/**
 * The subset of a CDP EVM server account (EOA) required to sign x402 payments.
 * Derived from the SDK's {@link EvmAccount} type so the adapter stays in sync
 * with the real account surface.
 */
export type CdpEvmAccount = Pick<EvmAccount, "address" | "signTypedData">;
/**
 * Converts a CDP EVM server account (EOA) into an x402-compatible signer.
 *
 * @param account - A CDP EVM account from `cdpClient.evm.getOrCreateAccount()`
 * @returns A `ClientEvmSigner` compatible with `@x402/evm`'s `registerExactEvmScheme`
 */
export declare function fromCdpEvmAccount(account: CdpEvmAccount): ClientEvmSigner;
/**
 * The subset of a CDP Smart Account (EvmSmartAccount) required to sign x402
 * payments. Its `signTypedData` mirrors the SDK smart-account signature, which
 * requires a `network` derived from the EIP-712 domain's `chainId`.
 */
export interface CdpSmartAccount {
    address: Address;
    signTypedData(options: Omit<SignTypedDataOptions, "address"> & {
        network: string;
    }): Promise<Hex>;
}
/**
 * Resolves a CDP SDK network name from an EIP-712 domain chain ID.
 *
 * @param chainId - The EIP-712 domain chain ID to resolve.
 * @throws {Error} If the chain ID is undefined or not supported.
 * @returns The CDP SDK network name (e.g. `"base-sepolia"`).
 */
export declare function resolveNetworkFromChainId(chainId: number | undefined): string;
/**
 * Converts a CDP Smart Account (EvmSmartAccount) into an x402-compatible signer.
 *
 * CDP Smart Accounts differ from EOAs in that their `signTypedData` requires a
 * `network` parameter. This adapter derives the network automatically from the
 * EIP-712 domain's `chainId`.
 *
 * @param account - A CDP Smart Account from `cdpClient.evm.getOrCreateSmartAccount()`
 * @returns A `ClientEvmSigner` compatible with `@x402/evm`'s `registerExactEvmScheme`
 */
export declare function fromCdpSmartWallet(account: CdpSmartAccount): ClientEvmSigner;
/**
 * Minimal interface for a CDP Solana account.
 * Matches the relevant methods from CdpClient's SolanaAccount.
 */
export interface CdpSolanaAccount {
    address: string;
    signTransaction(options: {
        transaction: string;
    }): Promise<{
        signedTransaction: string;
    }>;
}
/**
 * Converts a CDP Solana account into an x402-compatible `TransactionSigner`.
 *
 * Handles the translation between CDP's base64-encoded transaction strings and
 * `@solana/kit`'s compiled transaction objects.
 *
 * @param account - A CDP Solana account from `cdpClient.solana.getOrCreateAccount()`
 * @returns A `TransactionSigner` compatible with `@x402/svm`'s `registerExactSvmScheme`
 */
export declare function cdpSolanaAccountToSvmSigner(account: CdpSolanaAccount): TransactionSigner;
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