11 min watch

How to Build a Personal AI Assistant Like Grok Bot

  • mastra
  • composio
  • mcp
  • computer-use
  • e2b

A Grok Bot-style assistant needs authenticated tools and its own computer. I build one in Mastra with Composio over MCP and E2B computer use.

Composio over MCP gives the agent thousands of tools, with a connection per user and an org-level toolkit allow-list. I connect Notion over OAuth in the middle of the conversation. Mastra computer use on an E2B desktop sandbox gives the agent its own machine, and I have it run an SEO review of my site in the browser. I set maxSteps to 60 because each computer-use action is a step.

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