"Free APIs and services without commercial fees" matching MCP servers:

MCP server that gives AI agents direct access to Google services including Gmail, Calendar, Drive, and more, with multi-account OAuth support. Enables reading and sending email, managing calendar events, and interacting with Google files through natural language.

Enables AI assistants to read, write, and manage Google Docs, Sheets, and Drive files through structured MCP tools using service-account authentication, without requiring an OAuth consent screen.

Enables natural language management of files on CloudSee Drive (Amazon S3) including browsing, searching, uploading, downloading, sharing, and organizing, with confirmation for destructive actions.

Provides tools for reading, modifying, and analyzing Google Sheets, as well as searching and managing Google Drive spreadsheets with access control.

A Model Context Protocol (MCP) server for ZeroDrive file management. It enables AI assistants like Claude to interact with ZeroDrive cloud storage through a standardized interface.

Upload, list, and delete files on YourImageShare (free image & video hosting, 200MB limit, no account required) from Claude, ChatGPT, or any MCP-compatible agent.

Lets a coding agent upload files from disk to a Stickafile portal and return a shareable link, with the bytes going straight from disk to storage without entering the model's context. Also lists the portals a token can push to.

Enables LLM agents to lift local files into Google Drive as native Docs, Sheets, or Slides with formatting preserved, by passing file paths directly without routing bytes through the conversation.

Enables MCP-compatible AI clients to create, read, edit, format, organize and search your documents through the Google Docs and Drive APIs after a one-time OAuth sign-in. Supports appending, find-and-replace, styling, tables, lists, links, page breaks and full-text search without opening the Docs UI.

A local (stdio) MCP server for PixelVault — agent-first image hosting, enabling upload of local files by path without base64.

Exposes Poi's external APIs (file upload/download, commenting, license key issuance) as MCP tools for use with LLM clients like Claude.

Enables MCP clients to upload local or remote images to PicGo-configured image hosts, reusing existing PicGo configs without the desktop app. Supports batch uploads, custom naming, and status retrieval.

Enables AI assistants to manage Microsoft 365 services like Outlook, Calendar, OneDrive, and Contacts through natural language commands, with support for multi-account and high-performance caching.

A local MCP server that enables multi-account read-only access to Google Workspace services such as Gmail, Calendar, and Drive through named profiles.

Enables local MCP server for reading, writing, creating Google Sheets and charts via OAuth, acting as the logged-in user without manual sharing.

Enables durable, encrypted, cryptographically verified storage for MCP agents with self-serve signup and 12 GB free tier.

MCP server for BrewPage, a free no-signup hosting service. Lets AI agents publish HTML, Markdown, JSON, files, or a full multi-file static site and get a public URL instantly via a REST API.

Enables reading and editing Excel workbooks stored on SharePoint, OneDrive or Teams through Microsoft Graph without a browser, with every write starting as a dry run, checked against the version you read, and verified by reading the cells back. Includes device-code sign-in, workbook aliases, range filling, and dependency-free operation on Node 18+.

Enables reading Gmail messages and managing drafts without sending, managing Calendar events, and searching, downloading, uploading, or updating Drive files for a personal account through local OAuth-backed tools.

Enables Claude to search, list, and download files from any Google Drive folder shared with a service account, without OAuth or browser login.

Enables AI assistants to manage Bunny.net services such as pull zones, DNS, storage, video streaming, edge scripting, security, and Magic Containers through natural language.

Connects any MCP client to a Nextcloud instance through official WebDAV and OCS APIs, enabling browsing, searching, uploading, downloading, copying, moving, and deleting files and folders, plus managing favorites, public links and user/group shares, and the trash bin. Authentication uses the browser-based Login Flow with a saved app password.

A security-first MCP server for managing Whatbox slots with structured read-only inspection and approval-gated mutations, including storage, services, website deployment, and torrent control.

A Model Context Protocol server implementation that enables Claude to perform AWS operations on S3 and DynamoDB services through natural language commands.

Enables interaction with S3-compatible storage services like AWS S3 and Cloudflare R2, supporting bucket management, object listing, reading, uploading, and deletion operations.

MCP Server for Eyevinn Open Source Cloud API, enabling creation of solutions based on open web services. Web services based on open source where the creator gets a share of the revenue the platform generates.

Connects AI assistants to Linagora's Twake Workplace, enabling interaction with chat, email, and drive services through natural language.

Enables LLMs to interact with Supabase services including Database, Auth, Storage, and Edge Functions through the Model Context Protocol. It provides tools for CRUD operations, user management, file storage, and invoking functions.

Provides LLMs with tools to interact with the MASV API. MASV is an easy-to-use and ultra-reliable managed file transfer service designed for teams of all sizes. It allows users to send and receive massive files without size limits, while ensuring data integrity and security through its robust cloud infrastructure that supports cloud, on-prem, and hybrid workflows. Learn more https://massive.io/

Enables AI agents to browse, search, and download files from Shanghai Jiao Tong University's cloud drive after QR-code login, without handling account passwords.