Apple RAG MCP

/** * SiliconFlow API Key Manager - MCP Optimized * Multi-key failover without caching for single-execution MCP tools */ export class SiliconFlowKeyManager { constructor(private readonly db: D1Database) {} /** * Get current available API key (no caching for MCP) */ async getCurrentKey(): Promise<string> { const result = await this.db .prepare( "SELECT api_key FROM siliconflow_api_keys ORDER BY id ASC LIMIT 1" ) .first(); if (!result) { throw new Error("No SiliconFlow API keys available"); } return result.api_key as string; } /** * Remove invalid API key */ async removeKey(key: string): Promise<boolean> { const result = await this.db .prepare("DELETE FROM siliconflow_api_keys WHERE api_key = ?") .bind(key) .run(); return result.success && result.meta.changes > 0; } /** * Check if error indicates invalid API key */ isApiKeyError(error: Error): boolean { const msg = error.message.toLowerCase(); return ( msg.includes("401") || msg.includes("403") || msg.includes("unauthorized") || msg.includes("invalid api key") ); } /** * Check if error is retryable */ isRetryableError(error: Error): boolean { const msg = error.message.toLowerCase(); return ( msg.includes("503") || msg.includes("504") || msg.includes("timeout") || msg.includes("network") || error.name === "AbortError" ); } }