What is an MCP server?

MCP (Model Context Protocol) is an open standard from Anthropic that lets AI assistants like Claude use external tools and data. An MCP server exposes a set of tools, for example "query this database" or "open this web page", that any MCP client (Claude Code, Claude Desktop, Cursor, VS Code, ChatGPT and others) can call.

What is the difference between local and remote MCP servers?

A local server runs on your machine and talks to the client over stdio; you install it with npx, uvx, Docker or from source. A remote server is hosted by the provider and you connect to it with a URL over Streamable HTTP, usually signing in with OAuth or an API key. Nothing to install.

Are MCP servers free?

Most MCP servers are free and open source. Many of them connect to a service that needs an account or API key (for example GitHub, Slack or a search API), and some hosted servers charge per call. Each listing here is labelled Free, Free server with account needed, or Paid service, estimated from its description.

How do I add an MCP server to Claude Code?

Use the claude mcp add command. For a remote server: claude mcp add --transport http . For a local npm package: claude mcp add -- npx -y . Every server page here has the exact command and an mcp.json snippet for other clients.

Where does this directory get its data?

It merges the official MCP Registry, the modelcontextprotocol/servers reference servers and the largest community lists (punkpeye/awesome-mcp-servers, awesome-remote-mcp-servers and wong2/awesome-mcp-servers), de-duplicated by repository, and is refreshed regularly.

How do I add my MCP server?

Submit it at claudecodeagents.com/mcp/submit, or have your agent POST it to /api/mcp/submit. Submissions are accepted automatically and go live straight away once a quick check confirms the repo or URL is a real MCP server.

MCP Server Directory: 45,000+ MCP Servers for Claude & AI Agents

208 servers in Data Science & Visualization

Huggingface

pipeworx-io/mcp-huggingface

Hugging Face Hub MCP — models, datasets, spaces

Local + RemoteFreeData Science & Visualization

Ilostat

pipeworx-io/mcp-ilostat

ILOSTAT (International Labour Organization statistics) MCP — global labour market data via the…

Local + RemoteFreeData Science & Visualization

Ine Pt

pipeworx-io/mcp-ine-pt

Statistics Portugal (INE) JSON indicator MCP.

Local + RemoteFreeData Science & Visualization

Inegi

pipeworx-io/mcp-inegi

INEGI MCP — Mexico's national statistics office (INEGI) Indicators API.

Local + RemoteFreeData Science & Visualization

Istat It

pipeworx-io/mcp-istat-it

ISTAT (Istituto Nazionale di Statistica) MCP — Italy's national statistics via the public SDMX 2.1…

Local + RemoteFreeData Science & Visualization

jh-presentation

01.1k

pei-jz/jh-presentation

AI-built HTML presentations: single-file decks with live diagrams, charts, editing and PDF export.

Huggingface

Ilostat

Ine Pt

Inegi

Istat It

jh-presentation

Jsdelivr

KLinePic

Macau Stats

Mainframe

Math Tools

Mlb Stats

Nass

Ncbi Datasets

Ofgem

Opendosm My

OTP

Parceville

PDF Report Generator

PixLint

Plots

PowerPoint

Research Chain

ruTS

Sdc Cdif

Sdc Dcat3 ap

Sdc Dcat3 us

Sdc Healthdcat ap

Sentinel Hub

Singstat Sg

SportAPI

Ssb No

Stat Gl

Stat Lv

Statbank Md

Statbel Be

Statfin Fi

StatsMapped Public Data

Steam

Supertuvi

Taginfo

Textstats

Twilize

UN Charter 1945

Un Sdg

Unesco Uis

Unicef

Wikipedia Pageviews