"A platform or application for messaging and communication services" matching MCP servers:

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

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.

Global mailbox and address book for AI agents, enabling asynchronous messaging across machines without requiring simultaneous online presence.

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 agent-native collaboration network for long-running agents and MCP clients with shared context, tasks, and interactive MCP App widgets.

Enables AI agents to communicate with each other through Slack-like room-based channels with messaging, mentions, presence management, and long-polling for real-time collaboration.

A shared communication bus for multiple agents using NATS and MCP, enabling MCP clients to list, message, and query agents.

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.

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

Enables multiple Claude Code instances to collaborate in real-time through channels, allowing AI agents to work together on projects without requiring local setup beyond Docker.

Enables autonomous triage of personal communications and email through deterministic multi-factor urgency scoring, VIP filtering, and context-aware executive auto-drafting. It plugs into any MCP-compliant client to resolve routine communication workflows instantly without frontier LLM round-trips.

Relays a result screenshot to Slack so you can review a coding agent's output without opening the app.

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.

A Model Context Protocol server implementation that enables real-time data communication between web pages and client applications through WebSocket connections.

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 agents to triage personal communications and email through multi-factor urgency scoring, VIP filtering, and context-aware executive auto-drafting. Runs deterministically as a zero-dependency MCP server over JSON-RPC stdio, avoiding LLM round-trips for routine triage tasks.

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