Gemini MCP: How to Add a Custom Server in 2026
Gemini supports custom MCP servers through Connected Apps for Spark. The exact steps, the five eligibility gates Google applies, and what MCP still can't do.
Gemini Spark
14 posts
Connect Multiple Email Accounts to Gemini Spark
Gemini Spark reads one signed-in Google inbox and has no Outlook connector. Connect every mailbox to Carly, add Carly to Spark once, and name the account.
Connect Multiple Google Drive Accounts to Gemini Spark
Spark reads and writes Drive inside one signed-in account only. Connect every account to Carly, add Carly to Spark over MCP, and reach them all at once.
Connect Multiple Notion Workspaces to Gemini Spark
Spark has no native Notion connector, and one Notion authorization reaches one workspace. Connect every workspace to Carly and add Carly to Spark over MCP.
Connect Multiple OneDrive Accounts to Gemini Spark
Spark has no Microsoft connector, and Google's OneDrive connector needs the account type Spark refuses. Connect every Microsoft account to Carly instead.
Connect Multiple Outlook Calendars to Gemini Spark
Spark has no Microsoft connector, and Google's Outlook calendar connector needs a work identity Spark refuses. Connect every calendar to Carly instead.
Connect Multiple SharePoint Sites to Gemini Spark
Spark has no Microsoft connector, and Gemini Enterprise's SharePoint connector needs the account type Spark refuses. Connect every tenant to Carly instead.
How to Connect Multiple Slack Workspaces to Gemini Spark
Spark has no Slack path of its own, and Google's Slack integration is work-account only. Connect every workspace to Carly and add Carly to Spark over MCP.
How to Connect Multiple Google Calendars to Gemini Spark
Spark works from the one Google account you sign in with. Connect every account to Carly, add Carly to Spark over MCP, and reach them all in one session.
How to Connect Multiple Gmail Accounts to Gemini Spark
Gemini Spark works from the Google account you sign in with. Add every inbox to Carly, wire Carly in over MCP, and reach them all from one Spark session.
How to Connect Multiple Outlook Accounts to Gemini Spark
Gemini Spark has no Outlook connector at all. Add every mailbox to Carly, wire Carly in over MCP, and reach them from one Spark session.
ChatGPT Work vs Gemini Spark: Task Agent or Always-On Agent?
ChatGPT Work runs tasks for hours across 1,400 connectors; Gemini Spark works 24/7 but refuses work accounts. How the two agents differ on price and access.
Gemini Spark vs ChatGPT: Which AI Assistant Wins in 2026?
Gemini Spark is Google's 24/7 agent, personal accounts only; ChatGPT includes the ChatGPT Work agent on most paid plans. Here's who should pick which.
What Is Gemini Spark? Google's 24/7 AI Agent, Explained
Gemini Spark is Google's always-on agentic assistant on web, mobile and Mac. What it does, its integrations, the Pro or Ultra gate, and its real limits.