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Connect to everything your agents need, without writing the infrastructure to get there.

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Enterprise-grade controls to ensure your agent always meets security & compliance standards.

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Maximise agent efficiency – faster responses, increased accuracy, fewer tokens used.

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StackOne
Connectors
Connect

Connect to everything your agents need, without writing the infrastructure to get there.

Secure

Enterprise-grade controls to ensure your agent always meets security & compliance standards.

Optimize

Maximise agent efficiency – faster responses, increased accuracy, fewer tokens used.

Use-Cases
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Gemini Enterprise Custom MCP Server

Turn Gemini into an enterprise agent

Let your employees delegate real work to Gemini across all their apps, under their own identity and permissions.

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Get Gemini Enterprise to work.
Not just chat.

One connection to StackOne, and Gemini gets scoped access to every app your employees use, to act on their behalf.

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Make every system AI-ready

Give your AI access to 520+ managed MCP servers and 32,000+ tested tools. No auth code to write, no API maintenance.

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Secure

Keep AI under control

Enforce identity-based access, screen every response for prompt injection, and audit every action.

Prompt injection defense

Execute

Trust what AI delivers

Keep your agent sharp with lean tool loading, boost reliability with the Falcon execution engine, and enhance its context with pre-synced data.

Tool discovery Falcon

Roll out MCP tools to every Gemini Enterprise user.
Set up and onboarding in minutes.

One-time setup for IT. Self-serve for everyone else.

IT Admin

One-time setup, no per-user wiring.

The URL carries no access on its own, so it is safe to publish in an internal wiki. Creating the data store needs the Discovery Engine Editor role on your Google Cloud project.

Which MCP server will you
connect Gemini to?

Connect to the StackOne MCP gateway once and give your employees' agents instant access to 520+ pre-built SaaS connectors and 32,000+ MCP tools.

Need another connector? Build one with the AI Connector Builder

What will your employees
delegate to Gemini Enterprise?

From HR and recruiting to sales and support, Gemini completes work across any app you connect.

HR & People Ops

> List this month's Workday work anniversaries and draft a personalized celebration message for each.

UKG ReadyWorkday (Rest and Soap)FactorialHiBobOracle Fusion HCMHumaansClockifySAP SuccessFactors
Recruiting

> Compare Greenhouse interview feedback across stages and flag candidates trending toward an offer.

JobAdderVincereSmartRecruitersAshbyManatalFactorialHiBobSAP SuccessFactors
Sales & CRM

> Analyze Salesforce deals stuck 30+ days and draft a re-engagement email for each owner.

SalesforceKeapZoho CRMPipedriveFreshsalesHubSpotJustCallPardot
Support

> Cluster yesterday's Zendesk tickets by theme and surface the top 3 trending issues.

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Explore more AI agent use cases

Not everyone on Gemini Enterprise?
Your integration layer stays the same.

The same setup works across Web agents like Claude, ChatGPT, and every other MCP client.

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ChatGPT
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Gemini Enterprise Resources

The Best MCP Gateways in 2026, Compared

We compared 12 MCP gateways — StackOne, Zapier, Composio, Microsoft, Docker and more — on auth, multi-tenancy, governance, and pricing. Updated June 2026.

11 min

The Best MCP Gateways for Gemini Enterprise in 2026

The best MCP gateways for Gemini Enterprise (formerly Agentspace), compared: StackOne, Composio, Zapier, Arcade vs Google's native connectors.

10 min

Frequently Asked Questions

You connect Gemini Enterprise to StackOne over MCP through IT: create a data store under Gemini Enterprise → Connected data stores → Create data store, pick Custom MCP Server and OAuth 2.0, supply https://mcp.stackone.com/mcp, the auth/token URLs, client ID, and scopes mcp offline_access. Enable PKCE, verify, and continue. Employees then sign in and pick their own accounts.
You need the Discovery Engine Editor role (roles/discoveryengine.editor) on the project running Gemini Enterprise, since the data store is a Discovery Engine resource. Your MCP server and its identity provider both need public HTTPS reachability for OAuth to complete — StackOne's hosted gateway already satisfies that. See Google's setup docs.
Custom MCP server connections are documented across Standard, Plus, Pay-as-you-go, and Frontline, with Business covered separately. Gemini Enterprise is a paid Google product, so there's no free tier to try this on, and the consumer Gemini app cannot add custom MCP servers at all. Check Google's documentation for current availability.
You don't configure each app in StackOne yourself. IT connects the apps and sets the action ceiling for your project. Gemini Enterprise sends you to a consent screen where you pick which of those accounts and actions to use, narrowing further if you want. Rerun the flow to change it.
Once connected, Gemini Enterprise can run whatever actions you granted, across 520+ live connectors and 32,000+ tested actions — CRM, HRIS, ATS, ticketing, finance, and more. One thing to know: Google ships custom MCP servers switched off, so enable StackOne in the connectors panel first. Browse the actions in the directory above.
Your app credentials — Shopify, Salesforce, and the rest — live server-side in StackOne and never reach Gemini Enterprise or Google Cloud. The gateway address carries no access on its own. With PKCE enabled, Google stops asking for a client secret, so no long-lived secret sits in the config. Each token is scoped to what you picked.
IT can roll out the StackOne MCP connector to the whole organization in one pass: an admin creates the data store once, and it's available org-wide with nothing to distribute per person. Each employee still signs in, picks their own accounts and actions, and switches StackOne on in their own connectors panel, since Google enables no tools by default.

Connect All Your Apps to Gemini Enterprise.

One URL, 520+ pre-built SaaS connectors. Set up in minutes.

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