MCP Comparison · 2026
Microsoft Teams vs Slack (official) MCP Server
Comparing Microsoft Teams and Slack (official) as MCP servers? Microsoft Teams (read & post teams messages) is best when posting agent status to channels. Slack (official) (connect slack to ai agents) is best when company workspaces with app-approval policies. Both run as Model Context Protocol servers and can coexist in the same client. Updated 2026.
Side-by-side specs
Pulled from each MCP's verified fact sheet.
| Microsoft Teams | Slack (official) | |
|---|---|---|
| Primary function | Read & post Teams messages | Connect Slack to AI Agents |
| Maintainer | Microsoft | Slack |
| Pricing | Freemium | Freemium |
| Setup complexity | Medium · ~20 min | Low · ~5 min |
| Transport | Streamable HTTP | Streamable HTTP |
| Auth model | OAuth 2.1 | OAuth 2.1 |
| License | MIT | Proprietary |
| Language | TypeScript | TypeScript |
| Latest version | latest | remote |
| Compatible clients | Claude, Cursor, VS Code, Windsurf, Any MCP-compatible client, Microsoft 365 tenant | Claude.ai, Claude Code, Cursor, Perplexity, Any remote-MCP client with OAuth |
| Last verified | 2026-08-24 | 2026-09-03 |
Which one should you pick?
Decision rubric drawn from each MCP's documented strengths.
Choose Microsoft Teams
- Posting agent status to channels
- Summarising channel activity
- Meeting prep from calendar context
Choose Slack (official)
- Company workspaces with app-approval policies
- Searching messages, files and people from an agent
- Reading and replying in threads
Pick something else if…
- Tenants without admin consent for Graph scopes
- Workspaces whose admins block MCP clients
Feature breakdown
Key capabilities each server ships out of the box.
Microsoft Teams
- Microsoft Graph integration
- Entra ID OAuth 2.1
- Channel + chat messaging
- Calendar / meeting access
- Per-tenant scoping
Slack (official)
- First-party Slack server at mcp.slack.com/mcp
- Fifteen documented tools with per-tool OAuth scopes
- Admin-approved via the standard Slack app flow
- OAuth 2.0 with RFC 8414 metadata and PKCE for desktop clients
- Ships inside the official Claude Code and Cursor Slack plugins
Install snippets
Open the detail page for ready-to-paste config for every major client.
Install Microsoft Teams
Setup snippets for Claude, Cursor, VS Code, Windsurf →
Remote MCP — add https://agent365.svc.cloud.microsoft/agents/tenants/YOUR_TENANT_ID/servers/mcp_TeamsServer as a connector and sign in with EntraInstall Slack (official)
Setup snippets for Claude, Cursor, VS Code, Windsurf →
Claude Code: /plugin install slack@claude-plugins-official · Cursor: /add-plugin slack · or add https://mcp.slack.com/mcp as an HTTP MCP serverFAQ
Microsoft Teams vs Slack (official): which MCP server should I use?
Pick Microsoft Teams when posting agent status to channels. Pick Slack (official) when company workspaces with app-approval policies. Microsoft Teams is built for read & post teams messages, while Slack (official) focuses on connect slack to ai agents.
Can I run both Microsoft Teams and Slack (official) together?
Yes. MCP clients run each server as a separate process and surface every server's tools simultaneously, so you can install both and let your agent decide which to call. Be deliberate with auth scopes when stacking servers.
Which is easier to set up, Microsoft Teams or Slack (official)?
Slack (official) has the lighter setup. Microsoft Teams reports medium complexity (~20 min); Slack (official) reports low complexity (~5 min).
More Microsoft Teams comparisons
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