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

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.

An MCP server for Microsoft Graph, exposing 60 tools across calendar, email, meetings, Teams chat, files, people, directory, tasks, and OneNote over stdio or Streamable HTTP.

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

Enables Claude to access and manage multiple Google accounts at once across Gmail, Calendar, Drive, Contacts, and Tasks, with unified search and document text extraction.

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.

MCP server for document conversion and processing, enabling AI assistants to handle various document formats.

MCP server that provides tools to control a server-owned Pomodoro timer, allowing focus, pause, resume, skip, reset, and stats operations.

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.

Enables AI assistants to convert and process various document formats through an MCP server interface.

Enables delegated Microsoft Entra-authenticated access to Microsoft 365 user profile data, exposing read, capability, and description tools for AI assistants.

Generates PDF slide decks from Markdown using any MCP-compatible AI client. Free, no authentication, max 10 slides, output URL valid 90 days.

MCP server for accurately reading and writing Excel .xlsx files while preserving structure, styles, and formulas. Provides tools for inspecting, editing, and aggregating spreadsheet data, with optional LibreOffice recalculation.

Provides task and project management tools for AI agents, including todo list management, prioritization frameworks like Eisenhower Matrix and RICE scoring, time estimation using PERT, daily standup generation, and sprint burndown calculation.

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.

Enables AI agents to read, write, and edit Office documents via LibreOffice with token-efficient design. Supports multiple formats including DOCX, XLSX, PPTX, and legacy formats through LibreOffice bridge.

Turns markdown the agent produced into a link that renders as a typeset, paginated document with tables, Mermaid and math. The document is encoded in the URL, so nothing is uploaded and no account is needed.

Enables Claude.ai and Claude Code to read and write a single Gmail mailbox, including search, drafts, sending, and label management.

Enables MCP clients to securely access and operate a Microsoft 365 tenant through the full Microsoft Graph API, covering mail, calendar, files, Teams, SharePoint, Planner, OneNote, Excel, admin, security, and more with 219 tools and guarded write capability.

Enables AI assistants to interact with Microsoft 365 services (users, mail, calendar, files) via Microsoft Graph API.

Provides read-only access to Microsoft 365 services including SharePoint, OneDrive, Outlook, Teams, and Calendar through the Microsoft Graph API, enabling users to search, browse, and retrieve content across their M365 suite.