"A calculator for multiplying two numbers" matching MCP servers:

An MCP server example that enables AI to perform calculations and supports extensible tool integrations for email, knowledge search, remote control, and custom tools.

Enables AI apps on the local computer to search and read Thunderbird mail, organize messages, manage contacts, and prepare drafts, with optional controlled sending. Access is limited to user-selected accounts and tool groups, with local-only communication and a pause control.

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.

MCP server that encapsulates Apple Mail on macOS via AppleScript, enabling invoice PDF search, attachment saving, and message flagging through natural language.

Enables ChatGPT and Codex to interact with Zoho Mail through Zoho's official MCP service, with safe workflows and capability boundaries.

Enables AI agents to send emails, create drafts in Gmail, and append content to Google Docs via standardized MCP tools.

An MCP server that enables AI models to perform mathematical calculations and other tasks like email operations and knowledge search through a bidirectional communication protocol.

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

A stdio MCP server exposing a validate_emails tool that lets agents screen email lists without sending mail or probing SMTP, checking syntax, DNS/MX records, disposable domains, role accounts, free providers, typo suggestions, and SPF/DMARC. Each address comes back with a valid/risky/invalid/unknown verdict plus machine-readable reason codes so agents can clean leads and signups before outreach or import.

Send email through your own Amazon SES account, and check domain verification, the suppression list and sandbox status. Works with any SES account; Wraps adds send history and delivery events.

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.

Enables Claude to check, search, read, and organize email across multiple Spacemail (Spaceship) inboxes, and to compose threaded drafts or replies that are saved to Drafts for review before sending. Optional direct sending, safe move-to-Trash instead of permanent deletion, and keychain-backed credentials keep the workflow private and controlled.

MCP server for SentVia that provides email infrastructure for AI agents, enabling them to create inboxes, send, reply, forward, search messages, manage drafts, domains, webhooks, and allow/block rules through 21 tools.

Enables AI assistants to interact with Microsoft 365 and Office services through the Microsoft Graph API, providing tools for email, calendar, files, Teams, SharePoint, and more with configurable permissions and output formats.

Enables AI assistants to search, read, compose, and manage Thunderbird mail, filters, contacts, and calendar events through the Model Context Protocol.

Enables Claude Desktop on Windows to search and read Yahoo Mail messages in read-only mode, without sending, deleting, or otherwise modifying them.

MCP server giving Claude access to Tuta mail, calendar, contacts and drive. Supports mail modes (dedicated/shared/folder), trusted sender filtering with E2E verification, and Docker-based setup.

Enables Codex on Windows to search, read, and manage Naver Mail over IMAP/SMTP, including thread viewing, attachment downloads, draft creation, and sending or replying to messages. Credentials are stored encrypted with Windows DPAPI, and the local server provides tools for profiles, folders, and drafts.

Enables Antigravity IDE to directly interact with Google Docs, Sheets, Drive, Gmail, and Calendar, with token-optimized operations to reduce context usage by 70-90%.

Enables using Apple Mail accounts to search, read, manage, draft, and send messages from Codex or Claude Code locally.

A stateless email inbox on Cloudflare with MCP tools that let agents list, read, claim, complete, and reply to messages.

Enables Claude Desktop to interact with MailInApp projects, campaigns, and contacts. Allows designing and reading interactive email results with explicit confirmation for sending real campaigns.

Enables sending and drafting emails via Gmail and appending content to Google Docs through natural language commands.

Integrates with Google Docs and Gmail to append content to documents and create email drafts, featuring a manual approval system.

Enables agents to validate and normalize phone numbers, email addresses, and postal addresses with production-grade, country-specific rules, including formatting, typo detection, and checks for disposable domains or fictional numbers.

Gives AI agents phone numbers, email, SMS, and voice calls as MCP tools, enabling them to provision numbers, capture 2FA codes, send messages, and make calls.

Enables AI agents to create and send Gmail messages and append content to Google Docs through the MCP protocol.

MCP server that enables reading, searching, and replying to all Apple Mail accounts from Claude while keeping credentials local, using a two-phase commit for safe sending.

An MCP-powered AI agent that audits your Gmail for recurring subscriptions, detects silent price increases, and flags unused services.

Enables agentic administration of Infomaniak accounts via Claude, offering 169 tools for web hosting, mail, domains, DNS, and more, with a strict two-phase commit for safe mutations.