"Multi-platform information search across productivity and knowledge tools" matching MCP servers:

A local MCP server that provides LLM clients with read/write access to email and calendar data from Gmail, iCloud, and generic IMAP providers. It runs entirely on your machine, keeping data private while enabling email management, calendar operations, and task handling through natural language.

Connects Claude Code to Apple Mail, Calendar, and Reminders through macOS automation APIs, enabling management of emails, events, and reminders via natural language.

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

Enables Claude to read, search, send, draft, and organize email across multiple independently authenticated Gmail accounts through one local MCP connection. It supports account aliases, per-account default From addresses, dry-run sends, and draft-only replies for safer multi-account email management.

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 client to search Gmail, Outlook, Hotmail, iCloud and Fastmail mailboxes at once and read, draft, send and organise mail in each. It also supports attachments, labels, filters, signatures and vacation responders, with per-mailbox permissions controlling what may be sent.

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.

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.

Enables AI agents to inspect any public domain’s web technology stack, email deliverability and DNS health (MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI), and HTTPS security posture with typed JSON scores and remediation-ready findings, plus history, bulk checks, monitoring alerts, and reverse technology lookups.

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

Enables Claude to connect unlimited Gmail and IMAP mailboxes, search and triage them together while identifying each account, read attachments, and create drafts or perform permitted mailbox actions under configurable safety modes.

Enables local Windows file management with allowlisted folder access and integration with Outlook Classic or Microsoft 365 email for AI assistants like Claude Desktop.

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.

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

Enables multi-account Gmail and Google Calendar access through MCP, allowing operations across multiple Google accounts with a single tool call.

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 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.

A local MCP server that lets a client work with several Google accounts through a single connection, with every tool taking an account email so it can search Gmail and read threads, search and read Drive files, and list or create Calendar events on that account's behalf. It authorizes each account via OAuth, refreshes access tokens automatically, and stores the credentials encrypted at rest.

Enables searching and summarizing emails across multiple Gmail accounts simultaneously through Claude.

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.

Read-only, multi-account access to Proton Mail (via Proton Bridge) and Gmail over IMAP, letting a session search, list, and read messages, threads, folders, and attachments without sending, deleting, or marking anything. Per-process account scoping, Keychain-held passwords, and opt-in sandboxed attachment saving keep multiple mailboxes separated and untouched.

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.

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

Enables Claude to access and manage multiple Google accounts at once across Gmail, Calendar, Drive, Contacts, and Tasks, with unified search and document text extraction.

Enables AI assistants to manage multiple Gmail accounts in a single process through the Model Context Protocol, including cross-account search, reading threads, drafts, sending, labels, and attachments with per-account permission tiers.

A local-first MCP server for managing multiple Gmail accounts with separate OAuth grants, supporting search, retrieval, labels, drafts, and attachments while deferring direct send and destructive actions for safety.