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97,619 servers. Updated
19 Best Email MCP Servers: compared and ranked, October 2026Ranked from 2,721 matching servers on stars, growth, downloads and maintenance. Updated .

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  • A
    license
    A
    quality
    A
    maintenance
    Read and write email through the Atomic Mail from an AI agent. Handles proof-of-work authentication and JMAP so the agent thinks in JMAP method calls. Use when the user asks to register an email inbox, list mailboxes, fetch or send email.
    3
    1,135 npm
    266
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    Enables an MCP client to read, draft, organize, send, and delete email across multiple Gmail and Exchange Online/Outlook.com accounts, with per-account capability policies, recipient allowlists, confirmations, minimum OAuth scopes, and local audit logging.
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    A self-hosted MCP server for Gmail and Outlook that lets MCP clients read, search, send, reply, and manage email via OAuth, with no built-in secrets and support for both stdio and HTTP transports.
    25 npm
    ISC
  • F
    license
    Not graded
    quality
    D
    maintenance
    A comprehensive MCP server for unified email management that supports both Gmail and IMAP accounts via a single interface. It enables users to search across multiple accounts, list, read, send, and archive emails with integrated health monitoring and secure authentication.
    1
    -
  • A
    license
    A
    quality
    A
    maintenance
    Metis gives AI agents expert know-how that named reviewers have approved, and only where its recorded conditions match the situation. High-risk situations go to a person. When an agent sees practice depart from procedure, it can send the expert one short question. Every retrieval is recorded on a hash-linked evidence chain.
    6
    10
    432 PyPI
    2
    Apache 2.0
  • A
    license
    A
    quality
    C
    maintenance
    Enables AI assistants to send documents for e-signature, track signing status, remind pending signers, and download signed PDFs with audit-trail hashes via the AddSign API.
    6
    42 npm
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    MCP server for tidying a large Outlook / Hotmail mailbox via Microsoft Graph. Bulk moves, folder-tree surgery, inbox rules — no send tool, no permanent delete.
    19
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Search, document and execute authenticated API calls across all your apps (Gmail, Slack, Stripe, Notion, GitHub, and more) through 4 universal tools whose context footprint stays constant no matter how many connections you add. Hosted remote server with OAuth at https://mcp.withone.ai/mcp, or run locally via npx @withone/mcp.
    3
    829 npm
    11
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Enables AI apps to work with Google Sheets in plain language: finding spreadsheets, reading and writing ranges, managing sheets, formatting, validation, protected ranges, tables, charts, and access control, with deliberate writes and destructive operations clearly marked.
    26
    73 npm
    1
    MIT