Mastra Docs MCP server

This Model Context Protocol (MCP) server provides AI assistants with direct access to Mastra.ai's complete knowledge base, including comprehensive documentation, code examples, blog posts, and package changelogs. It integrates with Cursor, Windsurf, and Mastra agents to build documentation-aware AI assistants that deliver accurate information about the Mastra.ai ecosystem.

Installation Options

Setting Up in Cursor

Create or update the .cursor/mcp.json file in your project root:

For MacOS/Linux:

{
  "mcpServers": {
    "mastra": {
      "command": "npx",
      "args": ["-y", "@mastra/mcp-docs-server@latest"]
    }
  }
}

For Windows:

{
  "mcpServers": {
    "mastra": {
      "command": "cmd",
      "args": ["/c", "npx", "-y", "@mastra/mcp-docs-server@latest"]
    }
  }
}

Note: The MCP server won't be enabled automatically. You'll need to:

1. Go to Cursor settings
2. Navigate to MCP settings
3. Click "enable" on the Mastra MCP server

Setting Up in Windsurf

Create or update ~/.codeium/windsurf/mcp_config.json:

For MacOS/Linux:

{
  "mcpServers": {
    "mastra": {
      "command": "npx",
      "args": ["-y", "@mastra/mcp-docs-server@latest"]
    }
  }
}

For Windows:

{
  "mcpServers": {
    "mastra": {
      "command": "cmd",
      "args": ["/c", "npx", "-y", "@mastra/mcp-docs-server@latest"]
    }
  }
}

Important Windsurf notes:

• You must fully quit and re-open Windsurf after adding this configuration
• If a tool call fails, go into Windsurf MCP settings and restart the MCP server

Integrating with a Mastra Agent

import { MCPConfiguration } from '@mastra/mcp';
import { Agent } from '@mastra/core/agent';
import { openai } from '@ai-sdk/openai';

// Configure MCP with the docs server
const mcp = new MCPConfiguration({
  servers: {
    mastra: {
      command: 'npx',
      args: ['-y', '@mastra/mcp-docs-server@latest'],
    },
  },
});

// Create an agent with access to all documentation tools
const agent = new Agent({
  name: 'Documentation Assistant',
  instructions: 'You help users find and understand Mastra.ai documentation.',
  model: openai('gpt-4'),
  tools: await mcp.getTools(),
});

// Or use toolsets dynamically in generate/stream
const response = await agent.stream('Show me the quick start example', {
  toolsets: await mcp.getToolsets(),
});

Available Tools

Documentation Tool (mastraDocs)

This tool provides access to Mastra.ai documentation:

• Request specific documentation paths
• Explore both general guides and API reference documentation
• The tool automatically lists available paths when a requested path isn't found

Examples Tool (mastraExamples)

Access implementation patterns and sample code:

• List all available code examples
• Get detailed source code for specific examples
• View best practices for Mastra.ai implementation

Blog Tool (mastraBlog)

Access technical content from the Mastra.ai blog:

• Browse technical articles and posts
• Content is properly formatted with code block handling
• Supports various date formats in blog metadata

Changes Tool (mastraChanges)

Keep track of package updates:

• Access package changelogs
• List all available package changelogs
• Get detailed changelog content for specific packages

How to add this MCP server to Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > MCP and click "Add new global MCP server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.