A token-lean MCP server for PostgreSQL, MySQL, MariaDB, SQL Server and SQLite with a read-only mode
MCP servers
An MCP server connects an agent to external data and tools over a single protocol: files, databases, APIs and services. This section lists servers with their transport, auth method and environment variables, an install command and an honest read on the risks.
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Found: 16
Official
The official MathWorks MCP server: the agent starts and quits MATLAB, writes and runs code, and checks it for errors and style
Official
Redis's official MCP server: strings, hashes, streams, JSON and vector search from your agent
Official YDB MCP server
YDB MCP
YDB's own official MCP server from the database's developers: parameterized SQL queries, execution plans, directory browsing, and a base for custom servers
Official
A desktop SQL workspace with a built-in MCP server: the agent reads the schema and runs queries in the same client you already use
Official
A lightweight database workspace with an MCP server: the agent reads the schema, runs queries and explores data in PostgreSQL, MySQL and more
GraphJin MCP
GraphJin
GraphJin's MCP server gives an agent safe, schema-aware access to SQL and MongoDB instead of raw database credentials
A Python MCP server for MySQL: listing tables, reading data, running SQL and inspecting schema through a controlled interface
Official
Datalayer's MCP server for Jupyter: the agent opens notebooks, edits cells and runs code in a live JupyterLab session
MCP server for Google Sheets and Google Drive: an agent reads, edits and creates spreadsheets, tabs and charts
Neo4j Labs MCP servers: Cypher queries on a graph, graph memory for agents, Aura management and data modeling
MCP server and CLI to drive real Microsoft Excel: Power Query, DAX, VBA, PivotTables and charts
Official
Official Apache IoTDB MCP server: SQL over time series in tree and table models, with CSV and Excel export
A Go MCP server for querying ClickHouse: schemas, SQL, tools generated from views, OAuth and Kubernetes deployment
Russian stack
A DaJet Metadata based MCP server that exposes 1C metadata structure and runs SELECT queries against the database
DataLens Dev MCP
datalens-dev-mcp
Local MCP server and Codex plugin for Yandex DataLens dashboard development: read, author, publish, back up and clean up objects
Frequently asked questions
What is an MCP server?
An MCP server connects an agent to external data and tools over a single protocol: files, databases, APIs and services. The agent calls its tools while it works.
How do I connect an MCP server to an agent?
The entry lists how to run it (npx, uvx, docker or a remote URL) and the environment variables. A config snippet goes into the agent settings.
Do I need a key or a paid account?
It depends on the server. Each entry states the auth method and requirements, including paid accounts, in the limitations block.