"Free Network Graph Visualization Tools (No Account Required)" matching MCP servers:

Lets coding agents browse a personal Telegram account locally, retrieving per-chat text history and conversations or outgoing messages by date via QR login, read-only unless message sending is explicitly enabled. API credentials from Telegram are required, and access can be restricted to specific numeric chat IDs.

MCP server for self-hosted Telegram multi-account management, enabling encrypted session storage, health checks, batch operations, device-session management, and automation through AI agents.

A local stdio MCP server that lets an independently operated agent participate in Council Network using its own model and a persistent identity surviving restarts. It exposes read-only tools by default for rules, feed, threads and agents, with operator-gated writes for registering and contributing.

Enables AI CLI agents to interact with WhatsApp using an unofficial multi-device API, supporting messaging, chat/group/channel management, statuses, and an AI-driven inbox without requiring an official API key.

Enables a model to call the Microsoft Graph API directly through nine verb-shaped tools with per-user on-behalf-of authentication, so users can read, create, update, delete, search, batch, upload, download, and resolve attachments without server-side business logic or allow-lists.

Enables AI agents to work with Telegram through explicitly selected user accounts and bots, supporting search, reading, sending, and message management with consent-based access.

A social network MCP server that lets AI-powered IDEs connect and interact with other developers through messaging, public feed posts, resource sharing, and user discovery by tech stack.

Enables AI agents to access a self-hosted MAX messenger personal account: browse chats, read and search message history, inspect context, pins and forwarded text, download attachments, and send text or files with receipts and retry protection. Also supports durable batch state for scheduled workflows, with local authentication and access control over Streamable HTTP.

Enables AI assistants to read chats, Saved Messages, files and media, search history, and send messages through your personal Telegram account.

MCP server that enables Claude Code to communicate with other Claude Code agents over HTTP, allowing users to ask questions about remote codebases or delegate coding tasks.

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

Enables coding agents to browse chats, read and search messages, look up contacts, save received files, and send messages or files through a linked account.

Enables coding agents to inspect chats, messages, contacts, and history, manage received files, and perform controlled sends and actions on the user's own account.

Enables coding agents to read Telegram chats and messages, manage mirrored chats, send messages, and save or send files on the user's own account.

Enables AI assistants to securely access your own Microsoft 365 data—Outlook mail and calendar, OneDrive, SharePoint, Teams chat, To Do, Planner, Entra ID, and Intune—through Microsoft Graph with delegated permissions.

Open end-to-end encrypted messaging protocol and MCP server (a4a-mcp) that gives AI agents a cryptographic address (apub1...) to exchange messages, tasks, and signed agreements directly across NAT without port forwarding.

Enables controlled Microsoft 365 mail workflows including search, read, thread, attachment, and managed draft operations through Microsoft Graph, without sending or modifying messages.

Local stdio MCP server for discovering teammates’ coding-agent sessions, exchanging messages and small text files, and checking delivery status across computers. The open-source Rust engine includes Claude Code inbox delivery and hooks.

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.

Model Context Protocol server wrapping Microsoft Graph API for OneDrive, SharePoint, and Calendar with read and write operations, plus Teams meeting transcript support.

Enables AI assistants to interact with Microsoft 365 through the Microsoft Graph API, including searching Teams messages, managing chats, and sending messages.

A modular Model Context Protocol server for Microsoft Graph and Microsoft 365, enabling users to manage Teams, mail, calendar, To Do, contacts, and Outlook settings through natural language.

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.

Enables Claude Code sessions to discover each other as named peers and exchange instant messages across directories, machines, and Docker containers, with durable delivery for offline sessions.

Enables coding agents to read and search Discord servers, channels, DMs, messages, mentions, friends and message history, and to save files, send or edit messages, react, pin, and manage threads and roles. It acts through the user's own Discord account, with read-only and approval modes available.

Enables to manage your Outlook mailbox via Microsoft Graph (write access) with delegated permissions, providing MCP tools to create, modify, and send emails, folders, categories, rules, and automatic replies.

Provides direct access to Microsoft Graph API with multi-tenant account management, allowing users to interact with Microsoft 365 services across multiple tenants through a single flexible graph-request tool.

MCP server (stdio, npx -y myclawn-mcp) that lets your agent meet other people's agents. A local firewall decides what goes out: agents exchange only what each owner put on their card, and only two things come back to the human — anything not on the card, and any commitment on their behalf. Works in Claude Code, Codex and Cursor.

Enables voice and chat AI agents to invoke identity-gated tools without exposing caller identity to the model, starting with SMS link verification and customer registration. Tool calls rely on host-attached signed tokens to enforce verification levels and scopes before sensitive actions.

lark-tools-mcp connects Lark and cursor. It provides cursor with the ability to read documents, send messages, process tasks, and perform data analysis.

Connects Claude Code and Codex to Microsoft Teams, Outlook mail and calendar, online meetings, OneDrive, users, tasks, and presence through Microsoft Graph, exposing tools for messaging, scheduling, file management, and collaboration operations.

A collection of MCP servers for Apple macOS apps (Mail, Contacts, Notes, Memory, Messages, Calendar, Reminders) enabling AI assistants to read, search, create, and update data via JXA, SQLite, and EventKit.

Enables agents to perform read-only web search and fetching with SSRF/DNS-rebinding protections, probe gateway health, and optionally use QQ messaging tools with outbound redaction and media allow-listing.

A Model Context Protocol server that enables AI assistants to interact with Microsoft Outlook for calendar management, email operations, and search functionality.

A local MCP server for Cursor and Claude Desktop that reads Telegram subscriptions over MTProto and exposes channel posts for digests and natural-language queries.

Enables AI assistants to securely operate Microsoft 365 services, including Outlook email drafting/sending, Teams messaging, and user profile retrieval, through MCP over Streamable HTTP. Deployable on Google Cloud Run with managed authentication via Microsoft Entra ID.

A minimal MCP server for sending plain-text emails and managing Gmail user labels over stdio, using only gmail.send and gmail.labels OAuth scopes.

Enables AI assistants to manage Microsoft 365 email, calendar, and contacts through natural language, with zero Azure setup required.

A home for any agent on the internet: inbox, public memory, job board, rooms, human help. Free, no key.

MCP server for building and publishing Telegram bot funnels on zaytsv.ru, enabling graph creation, validation, and publication via API.