Best Alternatives to M365 Graph MCP

Outlook MCP

Runtime: npx

Microsoft Outlook MCP server — 20 tools for email, calendar, contacts, and settings via Graph API.

Ms 365 MCP Server

Runtime: npx

MCP server providing access to Microsoft 365 services via Graph API with configurable toolsets and authentication.

Line Bot MCP Server

Runtime: npx

Verified

Connects an AI agent to LINE Messaging API for messaging, user profiles, quotas, followers, and rich-menu management.

Sendmux MCP

Runtime: uvx

Email inbox API for AI agents with MCP tools for Mailbox, Management, and Sending APIs.

Abnormal Security MCP

Runtime: npx

Abnormal Security email threats, cases, and reporting in your terminal and your AI agents.

Tinysend

Runtime: Remote (SSE)

Email for agents: newsletters, subscribers, contacts, broadcasts. OAuth sign-in, no API key.

MCP Ecc

Runtime: Remote (SSE)

Unified MCP server for Email, Calendar & Contacts (Google, M365, Zoho, IMAP/SMTP, DAV).

Outlook MCP

Runtime: uvx

Microsoft Outlook personal accounts: mail, calendar, contacts, to-do, drafts (51 tools).

Aruba Email & Calendar

Runtime: uvx

MCP server for Aruba email and calendar via IMAP/SMTP/CalDAV

Palmyr

Runtime: npx

Agent infra: email, phone, social, domains, VPS, wallets. Paid per-action via x402, no API key.

Slack MCP Server

Runtime: npx

MCP server providing Slack workspace data access with message history, threads, DMs, user info, and optional message posting.

MCP Emails

Runtime: npx

Read, search, send, organize, draft and schedule email across your inboxes from any MCP client.