import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import type { DdClients } from './clients.js';
/**
 * Tier kind — controls which tools are available to the caller.
 *   - 'free'        : get_dd_report (basic), get_risk_score (rate-limited)
 *   - 'compliance'  : + nominee, timeline patterns (Pro Compliance €99/mo)
 *   - 'agency'      : + statutory_chain, bulk_lookup, watchlist (Agency €199/mo)
 *
 * 'enterprise' = treated as 'agency' for tool discovery.
 */
export type DdTier = 'free' | 'compliance' | 'agency' | 'enterprise';
export interface McpAuditContext {
    tokenId: string;
    userId?: string;
}
export interface DdServerOptions {
    audit?: McpAuditContext;
    authorizeLookup?: DdLookupAuthorizer;
}
export interface DdLookupRequest {
    country: string;
    tool: string;
    depth: 'basic' | 'ddplus';
}
export interface DdLookupAccess {
    upstreamAllowed: boolean;
    error?: unknown;
    record?: (upstreamCalled: boolean) => void;
}
export type DdLookupAuthorizer = (request: DdLookupRequest) => DdLookupAccess | Promise<DdLookupAccess>;
export declare function buildDdServer(clients: DdClients, tier?: DdTier, opts?: DdServerOptions): McpServer;
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