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server.ts3.61 kB
import { McpServer, ResourceTemplate, } from "@modelcontextprotocol/sdk/server/mcp.js"; import { z } from "zod"; import { generateImage } from "./api.js"; /** * Creates and configures a JiMeng MCP server * with one resource, one prompt, and one tool */ export function createServer() { // Create an MCP server const server = new McpServer({ name: "jimeng", version: "1.0.0", // Debug handler for incoming method calls debug: true, }); server.tool( "generateImage", "调用即梦AI生成图像", { prompt: z.string().describe("生成图像的文本描述"), req_key: z.string().default("jimeng_high_aes_general_v21_L").describe("取固定值: jimeng_high_aes_general_v21_L"), width: z.number().optional().default(512).describe("图像宽度,默认值:512"), height: z.number().optional().default(512).describe("图像高度,默认值:512"), seed: z.number().optional().default(-1).describe("随机种子,默认值:-1"), use_sr: z.boolean().optional().default(true).describe("文生图+AIGC超分"), use_pre_llm: z.boolean().optional().default(true).describe("开启文本扩写,针对输入prompt进行扩写优化,如果输入prompt较短建议开启,如果输入prompt较长建议关闭"), return_url: z.boolean().optional().default(true).describe("输出是否返回图片链接(链接有效期为24小时)"), logo_info: z.object({ add_logo: z.boolean().optional().describe("是否添加水印,默认不添加"), position: z.number().optional().describe("水印位置:0-右下角 1-左下角 2-左上角 3-右上角"), language: z.number().optional().describe("水印语言:0-中文(AI生成) 1-英文(Generated by AI)"), opacity: z.number().optional().describe("水印透明度:0-1,默认0.3"), logo_text_content: z.string().optional().describe("水印文字内容") }).optional().describe("水印信息") }, async (params) => { try { const imageUrls = await generateImage(params); // 如果没有返回URL数组,返回错误信息 if (!imageUrls || (Array.isArray(imageUrls) && imageUrls.length === 0)) { return { content: [{ type: "text", text: "图像生成失败:未能获取图像URL" }], isError: true }; } // 定义正确的类型 type ContentItem = { type: "resource"; resource: { uri: string; blob: string; mimeType: string } } // 将返回的图像URL转换为MCP响应格式 const responseContent: ContentItem[] = [] if (typeof imageUrls === 'string') { // 单个URL的情况 responseContent.push({ type: "resource", resource: { uri: imageUrls, blob: '', mimeType: '' } }); } else if (Array.isArray(imageUrls)) { // URL数组的情况 for (const url of imageUrls) { responseContent.push({ type: "resource", resource: { uri: url, mimeType: '', blob: '' } }); } } return { content: responseContent }; } catch (error) { const errorMessage = error instanceof Error ? error.message : String(error); return { content: [{ type: "text", text: `图像生成失败: ${errorMessage}` }], isError: true }; } } ); return server; }

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