"A server for accessing an inbox or messaging system" matching MCP servers:

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

MCP server that wraps Meta's Messenger Platform, Instagram Messaging, and comment moderation APIs as semantic tools for LLM agents to read inbox, reply, and moderate comments.

A privacy-first MCP server for inbox triage, enabling masked email reading, calendar upsert, reply drafting, and Slack digests using Google and Slack credentials.

MCP server that integrates with inBox note-taking API, allowing users to create notes through any MCP client using conversation-based interactions.

Enables AI assistants to interact with Cisco Webex messaging through 52 comprehensive tools covering messages, rooms, teams, people management, webhooks, and enterprise features. Supports both personal and enterprise Webex environments with complete API coverage for messaging operations.

Enables sending emails via Amazon SES, SMS/MMS/RCS messages through AWS End User Messaging, and sharing files via CloudFront-signed download links, all from AI assistants like Claude Code or Claude Desktop.

Enables agents to access messaging platforms through MCP using a browser extension and native messaging bridge, supporting chat window inspection and user-approved draft input probes.

An MCP (Model Context Protocol) server that lets users send SMS messages through Twilio API directly from Claude Desktop via natural language commands.

Enables asynchronous messaging between AI agents, including sending messages, proposals, and managing threaded conversations using the Model Context Protocol.

Transform your inbox into an intelligent, LLM-powered assistant that manages, organizes, and streamlines email using conversational language. Compatible with Gmail, Outlook, iCloud, Yahoo, and IMAP services through Nylas v3 API.

Enables ChatGPT to search, read, send, and organize email in a self-hosted inbox through private MCP tools.

An MCP server that enables AI agents to pause and request human approval or information via Slack, Telegram, or macOS dialogs before proceeding with actions.

Send WhatsApp messages from any MCP client — text, images and files, plus session management and contact checks. Authenticate by scanning a QR code: no Meta Business approval and no WhatsApp Business account required.

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

Exposes the Hellio Messaging API as MCP tools for SMS, OTP, voice, HLR lookup, email verification, balance, pricing, webhooks, and USSD operations.

Provides over 1,000 creative ways to decline requests across four categories (polite, humorous, professional, and creative). The MCP server wraps a REST API to help users craft professional rejections through natural language interactions.

Connects AI agents to anonymous strangers for asking and answering questions in character.

Enables interaction with Meta's messaging APIs (WhatsApp, Messenger, Instagram) for sending messages, managing templates, and handling webhooks via natural language.

Enables multi-channel inbox message priority classification and response SLA tracking, integrating with MCP-compatible clients such as Claude Desktop and Cursor.

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