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Connect your favorite apps to BrowserOS so the assistant can read your emails, check your calendar, post to Slack, update Notion, and more — all through natural conversation. See how to connect an app and start using it with the assistant:

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What is MCP?

BrowserOS Connected Apps use the Model Context Protocol (MCP), an open standard for connecting AI assistants to external systems. Think of it as a single, consistent way to plug your apps into the assistant.

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Built-in Apps

  • Gmail — Send, read, and search emails
  • Google Calendar — Create events, check your schedule
  • Google Docs — Create and edit documents
  • Google Sheets — Create and edit spreadsheets
  • Google Drive — Upload, download, and manage files
  • Slack — Post messages, manage channels
  • Notion — Create pages, manage databases
  • LinkedIn — Post updates, manage connections

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Connect a Built-in App

  1. Go to Settings → Connected Apps
  2. Click Add built-in app and select the app
  3. Sign in and authorize BrowserOS
Connected Apps settings page

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Use Connected Apps

Just ask the assistant what you want — it will automatically use the right connected apps.
Asking what's on my calendar today

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Example Prompts

  • What’s on my calendar today?
  • Schedule a meeting with Sarah tomorrow at 2pm
  • When is my next meeting with the marketing team?
  • Block off Friday afternoon for focus time
  • Show me unread emails from my manager
  • Draft a reply to the last email from John thanking him for the update
  • Find emails about the Q4 budget from last week
  • Send an email to the team with the meeting notes
  • Post a message to #general saying I’ll be out tomorrow
  • What’s the latest message in #engineering?
  • Send a DM to Sarah asking if she’s free for lunch
  • Summarize what was discussed in #product today
  • Add “Review Q4 report” to my Notion tasks database
  • Create a new page in my Projects database for the website redesign
  • What are my open tasks in Notion?
  • Update the status of the “Launch campaign” task to complete
  • Check my calendar for tomorrow, then draft an email to John summarizing what we’re meeting about
  • Find all emails from last week about the budget and create a summary in Notion
  • Look at my Slack DMs and add any action items to my Notion tasks

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Add a Custom MCP Server

You can connect any MCP-compatible server that exposes an SSE endpoint.
  1. Go to Settings → Connected Apps
  2. Click Add custom app
  3. Enter your server URL (e.g., http://localhost:8000/sse) and give it a name
Custom servers appear alongside built-in apps and work the same way.
MCP has a growing ecosystem of servers. Browse MCP servers on GitHub to find integrations for databases, APIs, and more.

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Connect to OAuth-Protected Remote Servers

Some remote MCP servers (like Atlassian Jira, GitHub, etc.) require OAuth authentication. Use mcp-remote and supergateway to handle the OAuth flow locally: 
npx -y supergateway --stdio "npx -y mcp-remote https://mcp.atlassian.com/v1/sse" --port 8000
A browser window will open to sign in. Once authenticated, add http://localhost:8000/sse as a custom MCP in BrowserOS.
Keep the terminal running while you use BrowserOS. The local server handles authentication and proxies requests to the remote MCP server.
npx -y supergateway --stdio "npx -y mcp-remote https://mcp.atlassian.com/v1/sse" --port 8000
Then add http://localhost:8000/sse as a custom MCP.
npx -y supergateway --stdio "npx -y mcp-remote https://api.githubcopilot.com/mcp/sse" --port 8001
Then add http://localhost:8001/sse as a custom MCP.

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Privacy & Security

Your data stays local

BrowserOS connects directly to your accounts. Credentials are stored locally on your machine.

You control access

Connect or disconnect apps anytime in Settings.

Secure OAuth

Built-in apps use OAuth flows — BrowserOS never sees your passwords.