MCP servers for AI agents

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 access level with its reasons.

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Found: 3090

FocusRelay reads and updates OmniFocus tasks and projects on macOS through documented APIs, with approval before edits

Extended access59Repository stars

A local bridge into the running Codex desktop app for macOS: scripts and agents call its tools through a CLI or an MCP server.

Broad access59Repository stars

MCP Accessibility Scanner runs axe checks, exercises keyboard focus and saves accessibility reports for web pages

Extended access59Repository stars

An MCP server that runs DeepSeek or your own local model as a sub-agent in Claude Code and Codex with its own tool loop.

Broad access59Repository stars

Smart Connections MCP searches an Obsidian vault by meaning using Smart Connections embeddings, with no cloud calls

Minimal access59Repository stars

Fabricator MCP reads Minecraft server logs and mods through the Fabricator panel so an agent can find why a modpack crashes

Extended access59Repository stars
Official

RollingGo searches hotels in China and worldwide through a remote MCP server with filters, prices and cancellation terms

Extended access59Repository stars

Nora MCP runs a self-hosted control plane for OpenClaw and Hermes agent fleets from Claude Code, Gemini CLI and Cursor

Broad access59Repository stars
Official

A local MCP server builds a SQLite and tree-sitter code index so an agent finds symbols, calls and meaning in one query

Extended access59Repository stars
Official

Official Cybozu MCP server: an agent reads and changes kintone apps, records and spaces through the REST API.

Broad access59Repository stars

A Go MCP server for Kubernetes: read any cluster resource and pod logs, with apply and exec in write mode

Broad access59Repository stars
Official

An MCP server builds an ontology from a database schema and checks agent SQL before it runs, for PostgreSQL, Snowflake and more

Broad access58Repository stars

Vibecode MCP lets Cursor, VS Code and Claude Code write Home Assistant automations and dashboards via an add-on agent

Broad access58Repository stars

Metasearch for agents: one MCP server and HTTP API merge results from many search providers into unified JSON with deduplication.

Extended access58Repository stars

smartest-tv plays shows and music on a smart TV by name: the stv CLI and an MCP server with 21 tools for agents

Extended access58Repository stars
Official

Engineering team memory over MCP: decisions, bug causes and constraints recalled by every agent, from Claude Code to Cursor.

Extended access58Repository stars
Official

The hosted Roboto MCP server lets an agent search a robot fleet's datasets and files and analyze topic data without changing them

Extended access58Repository stars

OpenStudio MCP

openstudio-mcp

Official

MCP server for building energy modeling: an agent builds an OpenStudio model, runs EnergyPlus and reads the results.

Extended access58Repository stars
Russian stack

An MCP server for Yandex Direct, Metrika, Wordstat and Webmaster: campaigns, ads, bids, reports and keyword research from chat

Broad access58Repository stars

ai-memory keeps long-term assistant memory in local SQLite and serves it over MCP, an HTTP API and a CLI

Extended access57Repository stars

MCPSpend wraps MCP servers in a proxy and counts what each tool call costs per project, model and client

Extended access57Repository stars

An MCP bridge that lets ChatGPT operate your Mac: shell, files, terminal sessions, Codex history and background Chrome.

Broad access57Repository stars
Official

KDAN's remote MCP server for PDFs: compress, delete pages, set a password, redact data and compare versions in chat

Broad access57Repository stars

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 card 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 card states the auth method and requirements, including paid accounts, in the limitations block.