"Connecting external data sources for contextual LLM calls" matching MCP servers:

Enables AI agents to query S3 data lakes using natural language, with support for CSV, JSON, Parquet and tools for data discovery, analysis, and metadata exploration.

Enables ChatGPT to work with a user's personal WPS cloud documents across Writer, Spreadsheets, Presentations, PDF, Smart Documents, Smart Forms, and Multi-dimensional Tables, performing authorized cloud operations and returning verifiable WPS links without local installation or an always-on computer.

This read-only MCP Server allows you to connect to Azure Data Lake Storage data from Claude Desktop through CData JDBC Drivers. For full CRUD support, check out the first managed MCP platform: CData Connect AI (https://www.cdata.com/ai/).

Enables secure one-time encrypted file and note sharing by encrypting data locally before upload and providing tools for sending, listing, checking, and revoking links.

A Model Context Protocol server that provides seamless access to multiple storage services including S3, Azure Blob Storage, and Google Cloud Storage through Apache OpenDAL™.

A read-only MCP server that exposes a configured Google Drive folder to MCP clients, enabling them to list, search, and extract content from various file formats like Excel, CSV, PDF, DOCX, and images.

Enables ChatGPT users to search and browse a private photo library, inspect metadata, and receive real image previews through read-only tools, while keeping encrypted sessions server-side.

Enables editing existing Docs, Sheets, and Slides in place, plus commenting, sharing, moving, and exporting files with native Google URLs returned. Provides 29 tools across Drive, Docs, Sheets, and Slides, using OAuth keys kept locally in ~/.gdrive-mcp/.

Enables Claude to search, read, create, and edit a user's personal WPS cloud documents, spreadsheets, and presentations—including reading and writing cells, replacing text, and discovering and running any of 619 WPS capabilities, with explicit confirmation required for destructive or sensitive operations. It runs remotely with one-time OAuth authorization, so no local install is needed.

MCP server giving Claude access to Tuta mail, calendar, contacts and drive. Supports mail modes (dedicated/shared/folder), trusted sender filtering with E2E verification, and Docker-based setup.

Enables Antigravity IDE to directly interact with Google Docs, Sheets, Drive, Gmail, and Calendar, with token-optimized operations to reduce context usage by 70-90%.

Enables AI agents to open, read, and edit Word and Excel documents through a local bridge, create Word files in existing SharePoint folders, and work with document content via an Office add-in.

Enables ChatGPT to list, search, and read files from a user's Google Drive—including Docs, Sheets, Slides, and text files—through read-only Google OAuth access.

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.

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

A PUT-only MCP server for MinIO that enables file, batch, and streaming uploads with automatic date/machine/file path organization and metadata generation for data archiving.

MCP server for Backblaze B2 Cloud Storage: a focused, safe 40-tool surface (17 native B2 SDK, 19 S3 data-plane, 4 analytics) for any MCP-compatible AI client, currently incubating in Backblaze-Labs

Exposes the Dropbox API v2 to LLM agents as a fixed set of MCP tools, enabling file management, search, shared links, and account operations with support for Business team-space namespaces.

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

Provides decentralized storage for AI agents, enabling them to save generated content to MEFS and retrieve data via content identifiers.