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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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

MCP serverHigh risk5.1KRepository stars

data.gouv.fr MCP

data.gouv.fr MCP Server

Official

Official MCP server for France's open data portal: search, explore and query datasets straight from a chat with the agent

MCP serverMedium risk1.6KRepository stars
Official

Datalayer's MCP server for Jupyter: the agent opens notebooks, edits cells and runs code in a live JupyterLab session

MCP serverHigh risk1.3KRepository stars

Neo4j Labs MCP servers: Cypher queries on a graph, graph memory for agents, Aura management and data modeling

MCP serverHigh risk984Repository stars

hh.ru MCP

hh-mcp

Russian stack

MCP server for the hh.ru API: vacancy and employer search, salary estimates, reference lists, resumes with employer access

MCP serverMedium risk4Repository stars

DaData MCP

dadata-mcp

Russian stack

DaData MCP server with 31 tools: address suggestions, company lookup by INN, phone and passport cleaning, reference lists

MCP serverMedium risk3Repository stars
Russian stack

An MCP server that fuses three transit sources, Mosgortrans, the Moscow region RNIS system and Yandex Transport, reconciling arrival predictions

MCP serverLow risk

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.