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

An agent orchestration platform with a 670-tool MCP server: Claude Code, Cursor and Codex drive DAG workflows and agent crews.

Broad access81Repository stars

Copies Claude Code and Codex sessions before auto-deletion and answers with a hash-backed citation or an abstention.

Extended access81Repository stars

A Proxmox VE MCP server with 341 tools: virtual machines, containers, storage, cluster and backups, with a read-only mode.

Broad access81Repository stars

A text-to-SQL MCP server: an agent asks a database in words, gets SQL plus a trace, and a stated refusal when data is missing.

Extended access81Repository stars

An MCP server with 59 tools for CapCut and OpenCut editing: tracks, clips, text, transitions and voiceover from Cursor and Codex.

Extended access80Repository stars
Official

An MCP server for Brazilian public procurement with PNCP and company registry data, no key or signup.

Minimal access80Repository stars

An MCP server with 29 tools that runs Wayland apps in a virtual KDE Plasma 6 session and reads the accessibility tree

Broad access80Repository stars
Needs a VPN

An MCP server for Google PageSpeed Insights and Chrome UX Report data: page audits, release comparison and a fix plan.

Minimal access80Repository stars

An MCP server for mail, calendar, contacts, reminders, notes and Safari: locally through macOS or over iCloud protocols.

Broad access80Repository stars
Official

The official Discourse MCP server: forum reads by default, with writes and admin tools enabled by flags.

Extended access79Repository stars

An MCP server and CLI with 76 tools let an agent edit an open FairyGUI Editor project: components, assets, animation, publishing

Broad access79Repository stars
Russian stack

A Dockerized MCP server for searching 1C dumps: structural index, call graph and semantic code search

Extended access79Repository stars
Official

A skill registry for teams with security scanning and versioning; the MCP server finds and installs skills on request.

Extended access78Repository stars

OpenCaseLaw gives an agent search over 1 million Swiss court decisions and laws of all cantons: keyless MCP, REST and the ocl CLI.

Minimal access78Repository stars

A browser for agents: one command set reads websites, Markdown, files and apps and calls their actions.

Extended access78Repository stars

Instagram MCP

instagram-mcp

Needs a VPN

An MCP server for the Instagram Graph API: the agent publishes posts, carousels and reels, replies to comments and reads business account analytics

Broad access78Repository stars

Home Memory MCP keeps a home knowledge base on your computer: rooms, devices, pipes and cables that an AI assistant manages.

Extended access77Repository stars

KGLite keeps a knowledge graph in one file, and its bundled MCP server gives agents Cypher queries with no separate database.

Extended access77Repository 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.