Connect Microsoft 365 Copilot to StackTether

Short answer: the person who builds your Microsoft 365 agents adds an MCP plugin to a declarative agent (with the Microsoft 365 Agents Toolkit), uses https://app.stacktether.com/api/mcp as the MCP server and chooses OAuth sign-in. Users then sign in to StackTether with 2FA and click Approve. Your MSP's admin must switch on Microsoft 365 Copilot under AI access.

What you need

• Microsoft 365 Copilot licences and permission to publish agents in your tenant. Microsoft offers MCP plugins for declarative agents as a preview feature.
• Microsoft 365 Copilot switched on for your MSP in StackTether.

Steps

1. In the Microsoft 365 Agents Toolkit, add an MCP plugin to your declarative agent.
2. Enter the connector address as the MCP server and choose OAuth sign-in. StackTether supports dynamic registration and issues a client secret, which Microsoft requires.
3. Publish the agent to the users who should have it.
4. On first use, each user signs in to StackTether with password and 2FA and clicks Approve on Connect Microsoft 365 Copilot to StackTether?.

Microsoft's documentation: Dynamic client registration for plugins and OAuth for plugins.

Known limits

• Microsoft does not publish an address range specific to these calls, so they are not limited by network. Audit log, call budgets and unusual-activity checks still apply.
• Approvals last 30 days.