---
title: StdioMCPTransport
description: Create a transport for Model Context Protocol (MCP) clients to communicate with MCP servers using standard input and output streams
---

# `StdioMCPTransport`

Creates a transport for Model Context Protocol (MCP) clients to communicate with MCP servers using standard input and output streams. This transport is only supported in Node.js environments.

`Experimental_StdioMCPTransport` is a deprecated alias of `StdioMCPTransport`.

## Import

<Snippet
  text={`import { StdioMCPTransport } from "@ai-sdk/mcp/mcp-stdio"`}
  prompt={false}
/>

## API Signature

### Parameters

<PropertiesTable
  content={[
    {
      name: 'config',
      type: 'StdioConfig',
      description: 'Configuration for the MCP client.',
      properties: [
        {
          type: 'StdioConfig',
          parameters: [
            {
              name: 'command',
              type: 'string',
              description: 'The command to run the MCP server.',
            },
            {
              name: 'args',
              type: 'string[]',
              isOptional: true,
              description: 'The arguments to pass to the MCP server.',
            },
            {
              name: 'env',
              type: 'Record<string, string>',
              isOptional: true,
              description:
                'The environment variables to set for the MCP server.',
            },
            {
              name: 'stderr',
              type: 'IOType | Stream | number',
              isOptional: true,
              description: "The stream to write the MCP server's stderr to.",
            },
            {
              name: 'cwd',
              type: 'string',
              isOptional: true,
              description: 'The current working directory for the MCP server.',
            },
          ],
        },
      ],
    },
  ]}
/>