import { PaymentPayload, PaymentRequirements } from './types.js';
import 'zod';

interface FourOhTwoBody {
    x402Version: 1;
    accepts: PaymentRequirements[];
    resource: string;
}
declare function build402Response(opts: {
    resource: string;
    accepts: PaymentRequirements[];
}): FourOhTwoBody;
declare function parsePaymentHeader(header: string | null | undefined): PaymentPayload | null;
interface VerifySettleClient {
    verify(req: {
        paymentPayload: PaymentPayload;
        paymentRequirements: PaymentRequirements;
    }): Promise<{
        isValid: boolean;
        payer?: string;
        invalidReason?: string;
    }>;
    settle(req: {
        paymentPayload: PaymentPayload;
        paymentRequirements: PaymentRequirements;
    }): Promise<{
        success: boolean;
        transaction?: string;
        network?: string;
        receipt?: unknown;
        error?: string;
    }>;
}
declare class FacilitatorHttpClient implements VerifySettleClient {
    private readonly baseUrl;
    constructor(baseUrl: string);
    verify(req: Parameters<VerifySettleClient["verify"]>[0]): Promise<{
        isValid: boolean;
        payer?: string;
        invalidReason?: string;
    }>;
    settle(req: Parameters<VerifySettleClient["settle"]>[0]): Promise<{
        success: boolean;
        transaction?: string;
        network?: string;
        receipt?: unknown;
        error?: string;
    }>;
}

export { FacilitatorHttpClient, type FourOhTwoBody, type VerifySettleClient, build402Response, parsePaymentHeader };