/**
 * Payment module
 *
 * Uses the unified IPC socket for payment signing.
 * The MCP process never holds private keys — it delegates signing
 * to the `openmm serve` process via /tmp/openmm.sock.
 */
import type { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import type { ToolPricing } from '@qbtlabs/x402';
export interface JWTClaims {
    user_id: string;
    exchange: string;
    tool: string;
    issued_at: number;
    expires_at: number;
    payment_tx: string;
}
export declare const TOOL_PRICING: Record<string, ToolPricing>;
export declare function isX402Enabled(): boolean;
/**
 * Check if the unified IPC socket is available for signing.
 */
export declare function initPaymentClient(): Promise<void>;
export declare function isPaymentClientEnabled(): boolean;
/**
 * Wrap an McpServer with the split payment flow.
 * Uses UnifiedIPCClient for signing — private key never in this process.
 */
export declare function wrapServerWithPayment(server: McpServer): Promise<void>;
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