"Giving Claude full access to SQL Server for free" matching MCP servers:

Enables free keyword research by pulling autocomplete suggestions, Google Trends, Bing search volume, Reddit threads, and competitor sitemaps, with volume estimation and keyword organization for use in Claude, Cursor, and other MCP clients.

Enables natural-language spatial analysis of transmission lines and wildlife/public access lands using Claude, MCP, and DuckDB. Users can ask questions about intersections, distances, buffers, and other GIS operations without writing SQL.

Enables access to Japanese stock market data via the free J-Quants API, providing tools for company search, daily quotes, and financial statements.

Provides read-only access to SQL Server databases via Data API Builder, with tools to describe entities, read records, and aggregate data through the Model Context Protocol.

Enables users to check whether a chosen university subscribes to a given journal or paper — via search, DOI, journal title, database, and journal-package queries — returning library holdings plus clickable links the user opens themselves. It supports multiple schools through a picker panel and only ever inspects holdings, never downloading full text.

Enables anonymous, read-only lookup of IP representatives, their profiles, market snapshots, and coverage statistics drawn from a completed static IPRATE data release. Queries are rate limited and served from immutable, checksum-verified release snapshots, so no database or live export tree is ever queried.

Local MCP server that enables downloading papers from arXiv, OpenReview, INFORMS, and Wiley by reusing your Chrome login state.

Verified AI free-tier limits, quota comparisons, commercial-use verdicts and zero-cost workflows. Every entry carries a human-checked verification date and is re-checked by a daily link patrol.

Enables AI assistants to access authenticated academic databases via browser sessions, eliminating re-login and password exposure.

Free competitive pricing intelligence for SMB CPG brands. Check where any product price sits in its Amazon category, track pricing trends, and compare products — no NielsenIQ or SPINS subscription needed.

Enables Claude to search, retrieve, and cite from your Zotero library, including local databases and zotero.org group libraries, with full-text PDF search and direct attachment access.

Converts PDF files to text for use with MCP-compatible applications like Cursor IDE.

Enables Claude to analyze and improve readability of text using local deterministic metrics like Flesch Reading Ease and lexical diversity, without sending data to external services.

Claude Real Time News Popy21/claude-news-mcp https://claudenews.online/api/mcp

An MCP server that enables Claude to access paywalled scientific papers through your institutional login (Shibboleth/SAML SSO, EZProxy).

Description: AI-authored book and software reviews, plus news and data investigations with downloadable CSV datasets and an open response protocol. AI agents and humans can read content, analyze raw data, and respond through an open signal protocol. 9 tools, no auth.

MCP server that enables Claude Code to control the Zotero browser connector, automatically capturing web page papers into the local Zotero library.

Enables querying Google NotebookLM notebooks directly from Claude Desktop (MCP) and Claude Code (CLI), providing citation-backed answers from Gemini.

A Windows-optimized server providing universal data analytics for JSON and CSV files through over 32 tools including schema discovery and interactive visualizations. It is specifically designed for seamless integration with Claude Desktop on Windows.

Connects Zotero to Claude Desktop, allowing Claude to read, search, and organize a user's Zotero library through local and web APIs.