"Free Graph and Network Visualization Tools (No API Key Required)" matching MCP servers:

Enables assistants and agents to query calendar availability from Google, Outlook, iCloud, or ICS feeds and return free time slots for specified days, date ranges, or pasted messages. It exposes read-only tools for finding availability and checking calendar readability without exposing calendar addresses.

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 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.

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

Provides AI agents with secure, allowlisted access to Atlassian Teamwork Graph data (Jira, Confluence, and related services) via the twg CLI, enabling read and write operations over the Model Context Protocol.

Enables natural-language discovery and execution of Microsoft Graph operations through a small fixed tool surface backed by a retrieval index, with per-user OAuth identity.

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.

Enables deterministic calculations for AI API and subscription costs, meeting time zones, recurring schedules, and cron next-run previews, returning normalized inputs, units, assumptions, dated sources, and links to results.

Enables async-first working practices by providing tools to draft decision docs, convert meetings to async artifacts, score status updates, and triage sync vs async tasks. It also offers reference tools for the Open and Async book's principles and coaching prompts.

MCP server for Microsoft Forms automation, enabling AI agents to inspect forms, resolve branching, validate and submit answers, upload files, and manage response links.

Enables AI agents to read conversations, send messages, and manage members in Microsoft Teams via the Teams Chat Service REST API.

Enables a family assistant to search documents, inspect, fill, edit, and sign files, manage scheduled work and runs, and perform web searches, with each tool gated by the caller's groups.

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.

An MCP server that generates MCP servers. Give it an API definition - OpenAPI 3.0/3.1 or a Postman collection or extend an existing server - and it scaffolds a complete, runnable, ownable TypeScript or Python MCP server for that collection of APIs.