"Proof-of-Concept Examples for Multi-Component Processes (Model Context Protocol)" matching MCP servers:

A Gmail MCP server with native multi-account support, enabling management of multiple Gmail accounts from a single server instance.

Enables safe, multi-account Gmail and Microsoft 365 operations with explicit aliases, including searching, reading, drafting, archiving, labels/categories, and human-reviewed sending via a localhost approval window.

Enables Claude Code and Claude Desktop to search, read, and manage multiple named Gmail inboxes from a self-hosted MCP server, keeping each account's results separate and authenticated through user-owned OAuth tokens.

Enables an AI assistant to connect to multiple Google accounts at once, searching and acting across Gmail, Drive, Calendar, and Contacts from a single interface.

Enables connecting and searching multiple Gmail or Google Workspace accounts via friendly aliases, with read-only access and source mailbox attribution for each result.

MCP server that gives an AI assistant simultaneous access to multiple Gmail accounts with per-account read-only, draft, or send tiers, two-phase write confirmation, and safeguards for handling untrusted email content.

Local-first MCP server for agents that need to work across multiple Gmail and Microsoft 365 accounts without cloud token storage.

Connect multiple Gmail accounts to any MCP client, enabling search, read, draft, send, label, and organize mail across unlimited accounts with local-only OAuth token storage.

Enables simultaneous management of multiple Gmail accounts through MCP, allowing per-account reads and writes with verified labels and parallel search across all mailboxes.

A self-hosted MCP server that gives an AI client read, search, triage, drafting, attachment/export and label-management access to several Gmail or Google Workspace accounts at once, with each call naming an explicit account. Sending is disabled unless armed twice, mail deletion is impossible, and tokens, exports and audit data stay local.

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.

Lets Claude Desktop manage multiple Gmail accounts simultaneously, supporting search, read, send, reply, and label organization via MCP tools.

Enables interacting with Gmail and Google Calendar across multiple Google accounts, allowing email search, thread retrieval, draft creation, label management, and calendar event viewing, creation, and updating through natural language.

Enables an AI assistant to access and search across multiple Gmail inboxes simultaneously, allowing unified management of work, personal, and other email accounts through a single MCP server.

MCP server exposing multiple Google Workspace Gmail accounts to Claude, with support for verified send-as aliases and opt-in sending.

Connects any number of Gmail accounts to Claude or another MCP client, enabling search, reading, sending, drafting, labeling, and trashing mail across one account or all of them at once. Runs entirely locally, so OAuth tokens never leave the user's machine.

A collection of small MCP servers for macOS automation that expose Apple Mail, MoneyMoney, and Spotlight functionality as tools via AppleScript and command-line, enabling AI applications to search mail, manage contacts and transactions, and perform system-wide file searches through natural language.

Enables local, read-only access to multiple Gmail and Google Drive accounts through explicit per-account aliases, using bring-your-own Google OAuth with secure credential storage and no telemetry or write capabilities.

Enables Claude to search and read emails from multiple Gmail accounts in one session, letting you switch between mailboxes via account labels. It is read-only and survives token expiry without restarting.

Connects AI assistants to one or more Zoho Mail accounts, enabling read, send, search, reply, and delete operations directly from an AI workflow. Multiple mailboxes can run from a single lightweight process to reduce memory usage.