Environments

import { MCPClient, loadConfigFile } from "@mcp-use/client";

// Inline config
const client = new MCPClient({
  mcpServers: {
    api: { url: "https://api.example.com/mcp" },
    fs: {
      command: "npx",
      args: ["-y", "@modelcontextprotocol/server-filesystem", "/tmp"],
    },
  },
});

// Or from a JSON file
const client2 = new MCPClient(loadConfigFile("./mcp-config.json"));

const connections = await client.connectAll();
await connections.api.callTool("ping", {});
await client.close();

import { MCPClient } from "@mcp-use/client";

const client = new MCPClient({
  mcpServers: { api: { url: "https://api.example.com/mcp" } },
});

const connection = await client.connect("api");
await connection.callTool("tool", {});
await client.close();

npm install @mcp-use/client react