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

Lumen: MCP for a learning platform

Lumen learning platform

The MCP server of the Lumen learning platform: course catalog, tutor questions with citations, a review queue and course drafts

Extended access93Repository stars

Signboard is a local Markdown-file kanban board with a built-in MCP server: the agent reads and moves cards on disk.

Extended access93Repository stars
Official

The Catalyst framework MCP server: the agent gets project knowledge, explains errors, checks config and follows a conversion plan

Extended access93Repository stars

An MCP server with 67 tools for OriginLab on Windows: an agent imports data, builds and styles graphs and runs curve fits.

Extended access93Repository stars

Web page screenshots for agents: a local MCP server and CLI driving your own Chrome, with secrets masked before pixels are written

Extended access93Repository stars

An MCP server and CLI that solve sparse linear systems, compute PageRank and estimate single values without a full pass

Minimal access93Repository stars

A knowledge base from your documents where people and AI agents annotate together, with an MCP server and skills for Claude Code

Extended access93Repository stars

MCP server that lets an agent write valid Altium Designer libraries: .PcbLib footprints and .SchLib symbols

Extended access93Repository stars
Official

An Odoo connector for the agent: search, create and edit records of any ERP model in plain language, Odoo versions 14 to 20

Broad access92Repository stars

AMFS

AMFS (SenseLab)

The SenseLab MCP server records an agent's decisions, scores them against task outcomes and tells the next run what worked

Extended access92Repository stars

Meeting notes on Mac and an MCP for agents: Markdown transcripts, search, recaps and action items, with no bot joining the call

Extended access92Repository stars
Official

An MCP server that lets an agent see the screen and control macOS, Windows and Linux: screenshots, clicks, OCR and screen memory

Broad access92Repository stars
Official

The CodeAlive MCP server: the agent searches large codebases by meaning and exactly and follows call relations without a full read

Extended access91Repository stars

Durable memory for agents: an MCP daemon with a hash-chained thought log and a shared versioned skill registry.

Extended access91Repository stars

An MCP gateway imports servers and skills once and gives Claude Code, Codex and OpenCode short summaries instead of full schemas.

Broad access91Repository stars
Official

An MCP server from the Optuna team: a model picks hyperparameters, reports trial results and plots the optimization history

Extended access91Repository stars

Every Claude Code, Codex and other agent session in one search: lossless storage you own, with MCP, CLI, HTTP and SQL access

Extended access91Repository stars

An MCP server for publishing creative code to aesthetic.computer: JavaScript pieces, KidLisp art and clock melodies

Extended access91Repository stars

An MCP server for security document review: an agent submits files and the findings stay drafts until a person decides

Extended access90Repository stars

An MCP server and CLI for Proton Mail through Proton Bridge: search, drafts and mail triage with read-only and drafts safety modes

Broad access90Repository stars

An MCP gateway with OAuth, Entra roles and send confirmation for 21Vianet Microsoft 365: mail, calendar, files, Teams

Broad access90Repository stars

A Linear MCP server with one tool and seven actions that takes about 500 tokens of context against 17,000

Broad access90Repository 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.