"A server for testing APIs" matching MCP servers:

• protonmail-mcp-server

  de-Blanck

  A

  license

  A

  quality

  D

  maintenance

  A read-only MCP server that connects to Proton Mail via Proton Bridge, enabling AI assistants to search, list, and read emails securely without leaving your machine.

  Last updated 2026-04-09

  4

  12

  1

  MIT

• MCP Server for Multiple

  uaixo

  A

  license

  A

  quality

  B

  maintenance

  Enables AI assistants to manage multiple Outlook/Microsoft 365 mailboxes simultaneously through MCP tools, with local OAuth token storage.

  Last updated 2026-06-26

  1

  MIT

• XServer MCP Server

  Mink16

  A

  license

  A

  quality

  C

  maintenance

  MCP server for Xserver hosting that provides tools to manage mail accounts, DNS records, server information, and domain verification through natural language.

  Last updated 2026-06-29

  15

  4

  MIT

• gmail-mcp-server

  m-ishit

  A

  license

  A

  quality

  C

  maintenance

  Connects multiple Gmail accounts to Claude Desktop via MCP, enabling email search, labeling, drafts, and confirmed sending through natural language.

  Last updated 2026-07-14

  13

  120

  MIT

• io.github.p-w-4-z/inbox-mcp

  p-w-4-z

  A

  license

  A

  quality

  D

  maintenance

  Provider-agnostic email MCP server that connects any IMAP mailbox to AI assistants, enabling email management through natural language.

  Last updated 2026-04-13

  8

  AGPL 3.0

• mcp-server-lobstermail

  lobster-kit

  A

  license

  A

  quality

  C

  maintenance

  MCP server for LobsterMail — gives AI agents email tools. Create inboxes, send and receive email, search messages, and manage webhooks.

  Last updated 2026-03-24

  11

  12

  MIT

• google-workspace-mcp-server

  EveryInc

  A

  license

  A

  quality

  F

  maintenance

  MCP server for Google Workspace APIs - Docs, Sheets, Drive, Gmail, and Calendar. Enables reading, creating, and editing Google Docs and Sheets, managing comments, reading emails, and viewing calendar events.

  Last updated 2026-03-10

  12

  34

  25

  16

  MIT

• SandMail — Disposable Email

  brobin002

  A

  license

  A

  quality

  D

  maintenance

  Create disposable email inboxes, extract OTP codes in 15 languages, and receive webhooks — all from your AI agent. One call: create inbox → wait for email → get the verification code. Supports 7 domains, email forwarding, and HMAC-signed webhooks with OTP included in payload. Free tier available.

  Last updated 2026-04-16

  8

  2

  MIT

• outlook-mcp-server

  dhtim135

  F

  license

  A

  quality

  C

  maintenance

  A lightweight MCP server for personal Microsoft Outlook/Hotmail accounts, enabling email search, reading, attachment management, and folder operations via Microsoft Graph API with OAuth device-code flow.

  Last updated 2026-04-27

  6

  1

• Resend MCP Server

  friendlygeorge

  A

  license

  A

  quality

  F

  maintenance

  An MCP server for the Resend email API, enabling AI assistants to send emails, manage contacts, audiences, and domains through natural language.

  Last updated 2026-06-11

  18

  110

  MIT

• email-mcp-server

  egyptianego17

  A

  license

  A

  quality

  C

  maintenance

  An MCP server that enables AI assistants to send emails via SMTP, supporting simple and custom emails with attachments and CC/BCC, plus connection testing.

  Last updated 2026-02-17

  3

  27

  MIT

• mcp-imap-server

  ngcdan

  F

  license

  A

  quality

  D

  maintenance

  An MCP server that enables Claude to directly access and manage email through IMAP. It provides tools for reading, searching, organizing, and drafting emails within your mailbox.

  Last updated 2026-04-18

  9

• Nylas API MCP Server

  mcpflow

  F

  license

  D

  quality

  D

  maintenance

  Enables to interact with Nylas API for email, calendar, and contacts via MCP, providing documentation, code samples, and code generation tools.

  Last updated 2025-03-17

  3
• 

  TrekMail MCP Serverofficial

  trekmail

  A

  license

  -

  quality

  B

  maintenance

  A Model Context Protocol server that exposes the TrekMail API v1 as 185 agent tools for managing email infrastructure and messaging.

  Last updated 2026-07-22

  1

  MIT
• 

  Cakemail API MCP Serverofficial

  cakemail

  A

  license

  -

  quality

  F

  maintenance

  An MCP server that provides AI agents with direct access to authoritative Cakemail API specifications, enabling accurate code generation and eliminating hallucination.

  Last updated 2025-10-06

  3

  MIT
• 

  Mailjet MCP Serverofficial

  mailgun

  A

  license

  -

  quality

  A

  maintenance

  Enables AI agents to interact with Mailjet's contact, campaign, segmentation, statistics, and workflow APIs for managing email marketing operations through natural language.

  Last updated 2026-07-21

  266

  11

  Apache 2.0

• Gmail MCP Server

  stevesimpson418

  A

  license

  -

  quality

  D

  maintenance

  A local MCP server that provides tool-level access to Gmail, allowing Claude to search, read, send, and manage emails using the Gmail API.

  Last updated 2026-07-16

  1

  MIT
• 

  mailpal-mcp-serverofficial

  mailpal-com

  A

  license

  -

  quality

  C

  maintenance

  Free email server for AI agents with hardware attestation, enabling agents to send, receive, and manage emails via MCP tools.

  Last updated 2026-04-26

  22

  Apache 2.0
• 

  Xeams MCP Serverofficial

  Synametrics

  A

  license

  -

  quality

  D

  maintenance

  Enables email address validation and outbound email status checking for the Xeams on-premise email server via MCP tools.

  Last updated 2025-11-13

  MIT

• Gmail MCP Server

  cherryaugusta

  A

  license

  -

  quality

  D

  maintenance

  A Windows-first Python MCP server for Gmail that reads unread emails and creates correctly threaded draft replies using the Gmail API.

  Last updated 2026-04-06

  MIT