Default MCP Catalog — Productivity & Communication¶
Email, calendar, notes, chat, team messaging — the surfaces an agent most often reaches into on behalf of a user. Every entry is a vendor-official remote MCP server and uses OAuth 2.1 Authorization Code; the Microsoft entries route through Microsoft 365 Agent365 and need MS_TENANT_ID set as an OS environment variable before connect.
Entries (8)¶
Click any card to expand the full spec inline — transport (Streamable HTTP / STDIO), authentication shape (OAuth 2.1 / API key / Bearer / none), required environment variables, vendor URL or stdio command, and the upstream docs link.
Read, search, and send Gmail messages, manage labels and drafts. Google Workspace MCP (Preview).
Vendor Google · T1 vendor
Auth OAuth 2.1
Vendor — Google (vendor-official (Tier 1))
Transport — Streamable HTTP
URL — https://gmailmcp.googleapis.com/mcp/v1
Auth — OAuth 2.1
OAuth 2.1 — runs the Authorization Code flow on Save & Connect → Authorize. Stability — PREVIEW · Tier — Tier 1
Required env — —
Tags — global · preview
Description
Read, search, and send Gmail messages, manage labels and drafts. Google Workspace MCP (Preview).
Docs: https://developers.google.com/workspace/guides/configure-mcp-servers
Docs — https://developers.google.com/workspace/guides/configure-mcp-servers
Read, send, and organise Outlook mail across folders. Routed through Microsoft 365 Agent365 — requires your tenant ID (MS_TENANT_ID).
Vendor Microsoft · T1 vendor
Auth OAuth 2.1
Vendor — Microsoft (vendor-official (Tier 1))
Transport — Streamable HTTP
URL — https://agent365.svc.cloud.microsoft/agents/tenants/${MS_TENANT_ID}/servers/mcp_MailTools
Auth — OAuth 2.1
OAuth 2.1 — runs the Authorization Code flow on Save & Connect → Authorize. Stability — GA · Tier — Tier 1
Required env — MS_TENANT_ID
Tags — global
Description
Read, send, and organise Outlook mail across folders. Routed through Microsoft 365 Agent365 — requires your tenant ID (MS_TENANT_ID).
Docs: https://github.com/microsoft/mcp
Create, list, and manage Google Calendar events, attendees, reminders, and recurring schedules. Google Workspace MCP (Preview).
Vendor Google · T1 vendor
Auth OAuth 2.1
Vendor — Google (vendor-official (Tier 1))
Transport — Streamable HTTP
URL — https://calendarmcp.googleapis.com/mcp/v1
Auth — OAuth 2.1
OAuth 2.1 — runs the Authorization Code flow on Save & Connect → Authorize. Stability — PREVIEW · Tier — Tier 1
Required env — —
Tags — global · preview
Description
Create, list, and manage Google Calendar events, attendees, reminders, and recurring schedules. Google Workspace MCP (Preview).
Docs: https://developers.google.com/workspace/guides/configure-mcp-servers
Docs — https://developers.google.com/workspace/guides/configure-mcp-servers
Browse Outlook calendars, schedule and update meetings, manage availability via Microsoft 365 Agent365. Requires MS_TENANT_ID.
Vendor Microsoft · T1 vendor
Auth OAuth 2.1
Vendor — Microsoft (vendor-official (Tier 1))
Transport — Streamable HTTP
URL — https://agent365.svc.cloud.microsoft/agents/tenants/${MS_TENANT_ID}/servers/mcp_CalendarTools
Auth — OAuth 2.1
OAuth 2.1 — runs the Authorization Code flow on Save & Connect → Authorize. Stability — GA · Tier — Tier 1
Required env — MS_TENANT_ID
Tags — global
Description
Browse Outlook calendars, schedule and update meetings, manage availability via Microsoft 365 Agent365. Requires MS_TENANT_ID.
Docs: https://github.com/microsoft/mcp
Browse, create, and edit Notion pages, databases, and properties. Vendor-hosted remote MCP with OAuth 2.1 + PKCE.
Vendor Notion · T1 vendor
Auth OAuth 2.1
Vendor — Notion (vendor-official (Tier 1))
Transport — Streamable HTTP
URL — https://mcp.notion.com/mcp
Auth — OAuth 2.1
OAuth 2.1 — runs the Authorization Code flow on Save & Connect → Authorize. Stability — GA · Tier — Tier 1
Required env — —
Tags — global
Description
Browse, create, and edit Notion pages, databases, and properties. Vendor-hosted remote MCP with OAuth 2.1 + PKCE.
Docs: https://developers.notion.com/guides/mcp/overview
Kakao aggregator hub — KakaoTalk send-to-self, Talk Calendar, KakaoMap, Gift, Melon, plus 200+ third-party MCPs. KR-focused.
Vendor Kakao · T1 vendor
Auth OAuth 2.1
Vendor — Kakao (vendor-official (Tier 1))
Transport — Streamable HTTP
URL — https://playmcp.kakao.com/mcp
Auth — OAuth 2.1
OAuth 2.1 — runs the Authorization Code flow on Save & Connect → Authorize. Stability — GA · Tier — Tier 1
Required env — —
Tags — korea · aggregator
Description
Kakao aggregator hub — KakaoTalk send-to-self, Talk Calendar, KakaoMap, Gift, Melon, plus 200+ third-party MCPs. KR-focused.
Docs: https://playmcp.kakao.com/
Docs — https://playmcp.kakao.com/
Read and post Slack messages across channels and DMs, search the workspace, manage user/channel metadata. Slack's official remote MCP.
Vendor Slack · T1 vendor
Auth OAuth 2.1
Vendor — Slack (vendor-official (Tier 1))
Transport — Streamable HTTP
URL — https://mcp.slack.com/mcp
Auth — OAuth 2.1
OAuth 2.1 — runs the Authorization Code flow on Save & Connect → Authorize. Stability — GA · Tier — Tier 1
Required env — —
Tags — global
Description
Read and post Slack messages across channels and DMs, search the workspace, manage user/channel metadata. Slack's official remote MCP.
Docs: https://docs.slack.dev/ai/slack-mcp-server/
Send messages to Teams chats and channels, search conversations, manage meetings via Microsoft 365 Agent365. Requires MS_TENANT_ID.
Vendor Microsoft · T1 vendor
Auth OAuth 2.1
Vendor — Microsoft (vendor-official (Tier 1))
Transport — Streamable HTTP
URL — https://agent365.svc.cloud.microsoft/agents/tenants/${MS_TENANT_ID}/servers/mcp_TeamsServer
Auth — OAuth 2.1
OAuth 2.1 — runs the Authorization Code flow on Save & Connect → Authorize. Stability — GA · Tier — Tier 1
Required env — MS_TENANT_ID
Tags — global
Description
Send messages to Teams chats and channels, search conversations, manage meetings via Microsoft 365 Agent365. Requires MS_TENANT_ID.
Docs: https://github.com/microsoft/mcp
Workflow combinations¶
The eight entries on this page are usually most useful as pairs or triplets behind a single agent turn. A few combinations that pay for themselves:
- Inbox triage → calendar —
Gmail(orOutlook Mail) +Google Calendar(orOutlook Calendar). An agent reads new messages, extracts proposed times, and writes accepted ones to the calendar in one turn. - Standup digest → channel —
Notion(orAtlassian Rovofrom the Dev page) +Slack(orMicrosoft Teams). Pulls overnight changes from the doc, posts a digest before the morning meeting. - Cross-suite triage —
Outlook Mail+Microsoft Teams(both Microsoft 365 Agent365). SingleMS_TENANT_IDenv unlocks both; the agent can answer a Teams DM with a mail attachment in the same turn. - Mixed-tenant —
Gmail+Outlook Mail. Two OAuth flows but one Inspector — switch sidebar selection per connection; chat sees both as a flat tool set.
Auth & secrets¶
Every entry on this page uses OAuth 2.1 Authorization Code. Two also need an OS environment variable on top of OAuth, supplied as a ${VAR} placeholder in the URL or requiredEnv:
| Connection | OAuth issuer | Extra env |
|---|---|---|
| Gmail | https://accounts.google.com (Google Workspace scopes — preview) |
— |
| Google Calendar | https://accounts.google.com (calendar scope — preview) |
— |
| Outlook Mail | https://login.microsoftonline.com/${MS_TENANT_ID}/v2.0 |
MS_TENANT_ID |
| Outlook Calendar | https://login.microsoftonline.com/${MS_TENANT_ID}/v2.0 |
MS_TENANT_ID |
| Notion | Notion-hosted OAuth 2.1 + PKCE | — |
| Kakao PlayMCP | Kakao OAuth (KR domain) | — |
| Slack | Slack-hosted OAuth | — |
| Microsoft Teams | https://login.microsoftonline.com/${MS_TENANT_ID}/v2.0 |
MS_TENANT_ID |
Set MS_TENANT_ID in your shell or in the desktop launcher's Environment Variables card before you click Save & Connect — the connection fails fast with a clear error if it's missing.
Picking guide¶
| If you need… | Reach for |
|---|---|
| The lightest-weight personal-inbox demo | Gmail — preview but no tenant config |
| Anything inside a Microsoft 365 tenant | Outlook Mail / Outlook Calendar / Microsoft Teams — share one MS_TENANT_ID env |
| A doc store that doubles as a knowledge base for RAG | Notion — pages and databases come back as MCP resources |
| Channel posting from agentic flows | Slack for fast-moving teams · Microsoft Teams for 365 shops |
| Korean-domain coverage (KakaoTalk send-to-self, Talk Calendar, Kakao Map, 200+ relays) | Kakao PlayMCP |