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

Microsoft's free official MCP server for Microsoft Learn docs: search, page fetch and code samples with no key

MCP serverLow risk1.9KRepository stars

An MCP server for NixOS resources: search packages and options so the agent does not invent names and settings

MCP serverLow risk848Repository stars

Read-only Yandex Cloud MCP server

Yandex Cloud MCP Server

An unofficial read-only Yandex Cloud MCP server: VMs, networks, disks, and access at folder, cloud and org level

MCP serverLow riskRussian stackNo VPN needed2Repository stars

Yandex Cloud Billing MCP

yandex-cloud-mcp-billing

Yandex Cloud spend MCP: cost breakdowns by service, folder and resource label, with conversion to any currency

MCP serverLow riskRussian stackNo VPN needed1Repository stars

A search MCP server on the Yandex Cloud Search API with a monitoring dashboard, Brave fallback and an offline bundle for air-gapped networks

MCP serverLow riskRussian stackNo VPN needed

A FastMCP-based MCP server for Yandex Metrika reports: visits, traffic sources, demographics, goal conversions

MCP serverLow riskRussian stackNo VPN needed

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.