Presearch MCP Server

import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js"; import { ListToolsRequestSchema, ListPromptsRequestSchema, GetPromptRequestSchema } from "@modelcontextprotocol/sdk/types.js"; import { tools } from "./tools/index.js"; import { prompts } from "./prompts/index.js"; import { registerResources } from "./resources/index.js"; import logger from "./core/logger.js"; import { formatToolList, formatPromptList } from "./utils/mcp-helpers.js"; /** * Creates and configures the MCP server instance * @param {Object} globalConfig - The global configuration object * @param {Object} requestConfig - Optional per-request configuration * @returns {Promise<McpServer>} The configured MCP server instance */ export const createMcpServer = async (globalConfig, requestConfig = {}) => { // Merge global config with request-specific config (like API keys from query params) const effectiveConfig = { ...globalConfig, ...requestConfig }; const server = new McpServer({ name: "presearch-mcp-server", description: "Privacy-focused MCP server for web search and content export with intelligent caching, rate limiting, and comprehensive Presearch API integration.", version: "2.1.6", }, { capabilities: { prompts: { listChanged: true }, tools: { listChanged: true }, resources: {}, } }); // Register tools for (const tool of tools) { server.tool( tool.name, tool.description, tool.inputSchema, async (args) => { // Pass the effective configuration (including API key) to the tool execution return tool.execute(args, { apiKey: effectiveConfig.apiKey }); } ); } // Handle ListToolsRequest manually to support Smithery metadata server.server.setRequestHandler(ListToolsRequestSchema, async () => { const toolList = formatToolList(tools); logger.debug("Listing tools for client", { count: toolList.length }); return { tools: toolList }; }); // Handle ListPromptsRequest manually to support Smithery metadata server.server.setRequestHandler(ListPromptsRequestSchema, async () => { const promptList = formatPromptList(prompts); logger.debug("Listing prompts for client", { count: promptList.length }); return { prompts: promptList }; }); // Handle GetPromptRequest server.server.setRequestHandler(GetPromptRequestSchema, async (request) => { const promptName = request.params.name; const prompt = prompts.find((p) => p.name === promptName); if (!prompt) { throw new Error(`Prompt not found: ${promptName}`); } const args = request.params.arguments || {}; // Validate arguments if prompt has requirements if (prompt.arguments && prompt.arguments.length > 0) { // Simple validation for required arguments for (const arg of prompt.arguments) { if (arg.required && !args[arg.name]) { throw new Error(`Missing required argument: ${arg.name}`); } } } const promptResult = prompt.handler(args); const title = prompt.title || (prompt.annotations && prompt.annotations.title) || prompt.name; return { name: prompt.name, title, description: prompt.description, arguments: prompt.arguments, annotations: prompt.annotations || { title }, messages: promptResult.messages, }; }); registerResources(server); return server; };