GPT-MCP Bridge

import OpenAI from 'openai'; import type { GPTModel, ReasoningEffort, Verbosity, Message } from '../types/index.js'; export class OpenAIService { private client: OpenAI; constructor(apiKey: string) { this.client = new OpenAI({ apiKey }); } async askGPT( model: GPTModel, prompt: string, reasoning_effort?: ReasoningEffort, verbosity?: Verbosity, conversationHistory?: Message[] ): Promise<{ response: string; tokensUsed: number }> { try { // Build messages array const messages: any[] = conversationHistory ? [...conversationHistory.map(m => ({ role: m.role, content: m.content }))] : []; // Add current prompt messages.push({ role: 'user', content: prompt }); const params: any = { model, messages, }; // Add reasoning_effort for GPT-5 models if (model !== 'o3' && reasoning_effort) { params.reasoning_effort = reasoning_effort; } // Add verbosity for GPT-5 models if (model !== 'o3' && verbosity) { params.verbosity = verbosity; } const response = await this.client.chat.completions.create(params); const responseText = response.choices[0]?.message?.content || 'No response from GPT'; const tokensUsed = (response.usage?.total_tokens || 0); return { response: responseText, tokensUsed }; } catch (error) { if (error instanceof Error) { throw new Error(`OpenAI API error: ${error.message}`); } throw new Error('Unknown error occurred while calling OpenAI API'); } } }