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The official Telnyx MCP server (@telnyx/mcp) that lets AI assistants use Telnyx's communications APIs through function calling — messaging (SMS/MMS), voice and call control, phone-number management, SIP connections, verification, and wireless. The npx package proxies to Telnyx's hosted MCP server over HTTPS and authenticates with a Telnyx API key.

Connect Claude to the full Appwrite backend platform — databases, authentication, serverless functions, teams, messaging, and storage — with the official Appwrite MCP server using dynamic dispatch across the entire Appwrite API surface.

ByteDance long-horizon super-agent harness for research, coding, creation, subagents, skills, memory, sandboxes, MCP server support, messaging channels, LangGraph workflows, and Docker or local development.

Nous Research AI agent with terminal UI, messaging gateway, skills, memory, MCP integration, scheduled automations, subagents, terminal backends, OpenClaw migration, model switching, and persistent cross-session workflows.

AgentTrust stdio MCP server giving AI agents verified identity with email, instant messaging, and cloud file storage across 19 Ed25519-signed tools.

Official Firebase MCP server bundled with Firebase CLI, giving Claude project, app, Auth, Firestore, Realtime Database, Storage, Crashlytics, Data Connect, Functions, Messaging, Remote Config, rules, and deploy capabilities.

Open-source platform that runs Claude agents in isolated per-session containers, connects them to messaging channels, keeps per-agent memory and scheduled tasks, and routes credentials through a vault so keys never enter containers.

AgentDM provides a hosted MCP grid for agent-to-agent messaging with OAuth or API key auth at the documented grid endpoint.

How to run an internal Claude Code launch with the communications kit: stakeholder message templates, an announcement timeline, FAQ ownership, and aligning the rollout with your champion pilot.

Official AWS Labs MCP server for Amazon SNS and SQS that lets AI assistants list and manage SNS topics, subscriptions, and SQS queues and send/receive messages, with resource tagging so it only modifies what it created.

Official LINE MCP server that connects Claude and other AI agents to the LINE Messaging API for push messages, broadcasts, profile lookup, quotas, follower IDs, and rich-menu management.

Telethon-powered MCP server for connecting Claude to Telegram accounts, chats, messages, contacts, media, folders, groups, channels, profile settings, and read-only or full account workflows.

Personal WhatsApp MCP server with a Go bridge and Python MCP server for searching contacts and chats, reading messages, sending messages, sending media, and downloading WhatsApp media.

Official Slack remote MCP server that connects Claude and other MCP clients to Slack search, messages, channels, threads, canvases, reactions, users, and workspace context through OAuth-backed Streamable HTTP.

Expert Claude Code communications kit capability pack for planning internal launch campaigns, message calendars, manager talking points, and FAQ updates aligned to official communications kit documentation.

MCP server that lets Claude use an authenticated LinkedIn browser session to inspect profiles, companies, jobs, feeds, inboxes, and conversations.

Manage Customer.io from Claude — create segments, inspect customer profiles, send broadcasts and campaigns, work with journeys, and access the full Journeys UI and CDP Data Pipelines APIs — with the official Customer.io remote MCP server.

Configure Claude Code on Microsoft Foundry: Azure auth, idle timeouts, auto mode opt-in, PowerShell tool defaults, and third-party provider messaging.

Source-backed agent that reviews the container isolation posture of a NanoClaw deployment, checking filesystem mounts, per-agent scoping, credential vault routing, messaging channel permissions, and scheduled tasks before agents run with real access.