Skip to main content Announcing Tool Gateway MCP: the universal MCPRead the announcement
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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.

Optimize

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

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Next up: Meet us at WeAreDevelopers World Congress 2026
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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Microsoft 365 Copilot (Copilot Studio) MCP Server

Turn Microsoft 365 Copilot into an enterprise agent

Let your employees delegate real work to Microsoft 365 Copilot across all their apps, under their own identity and permissions.

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Get Microsoft 365 Copilot to work.
Not just chat.

One connection to StackOne, and Microsoft 365 Copilot gets scoped access to every app your employees use, to act on their behalf.

Connect

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.

Browse all connectors

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 and boost reliability with the Falcon execution engine. Pre-synced data for faster context is coming soon.

Tool discovery Falcon

Roll out MCP tools to every Copilot agent.
Set up and onboard in minutes.

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

IT Admin

One-time setup, no per-user wiring.

Copilot signs in from a fixed Microsoft callback address and cannot self-register, so this is one of the few clients that needs a client ID and secret created in StackOne first. The gateway URL still carries no access on its own.

MCP client setup guide

Connect Microsoft 365 Copilot to
any Enterprise MCP server

One MCP gateway, 520+ pre-built SaaS connectors Microsoft 365 Copilot can act on right away.

Need another connector? Build one with the AI Connector Builder

Get your Microsoft 365 Copilot agent
to do more across your stack

Cross-app workflows your Microsoft 365 Copilot agent now runs in seconds instead of click-throughs.

Email & calendar automation

> Draft an Outlook reply with this account's open HubSpot deal context and last 3 touchpoints.

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Document drafting & editing

> Pull Salesforce account context into a Word proposal draft with live numbers.

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Spreadsheets & reporting

> Query the warehouse via Snowflake and dump the result into an Excel pivot table.

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Team collaboration & messaging

> Surface Linear sprint status in the engineering Teams channel each Monday.

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Explore more AI agent use cases

Not everyone on Microsoft 365 Copilot?
Your integration layer stays the same.

The same setup works across Enterprise AI workspaces like Glean, Cohere North, and every other MCP client.

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Microsoft 365 Copilot 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 Copilot Studio in 2026

The best MCP gateways for Copilot Studio, compared: StackOne, Zapier, Workato, and Microsoft's native stack — wizard auth, the 128-tool cap, DLP and ACP.

10 min

Frequently Asked Questions

You connect Microsoft 365 Copilot to the StackOne MCP gateway via a custom MCP server added in Copilot Studio: open your agent → Tools → Add a tool → New tool → Model Context Protocol, paste the StackOne gateway URL, choose OAuth 2.0, and save. See Microsoft Learn. Requires Copilot Studio + M365 Copilot licenses.
You can connect Microsoft 365 Copilot to 520+ live MCP servers through StackOne, spanning CRM, HRIS, ATS, ticketing, and finance — Salesforce, Workday, Greenhouse, and more. Each is reachable through one gateway URL instead of wiring up servers app by app. Browse the full list in the directory on this page, or build your own.
Microsoft 365 Copilot ships first-party enterprise integrations (Salesforce, ServiceNow, Workday, SAP, Adobe) plus partner agents via Copilot Studio. StackOne adds the other 520+ — every app reachable through one Custom MCP connection instead of one per app, auth managed once in the dashboard, and tool definitions loaded only when relevant to the prompt.
Credentials sit at three layers: the StackOne MCP server record (OAuth 2.0 in Copilot Studio Tools, managed by Power Platform admins), SaaS connector credentials (server-side in your StackOne dashboard), and per-user OAuth or session tokens (server-side, scoped per user). StackOne stores OAuth tokens and API keys, refreshes them automatically, and only exposes the actions you've authorized to the agent.

Connect All Your Apps to Microsoft 365 Copilot.

One MCP gateway, 520+ pre-built SaaS connectors. Set up in 5 minutes.

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