MCJars MCP Server

by mcjars Your server? Claim it

answering

MCJars is answering right now. Last checked 8 min ago. It exposes 3 tools.

Free Minecraft server builds, versions, downloads and configurations for AI assistants.

Uptime history 4 days of history

4 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

449 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check MCJars every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add minecraft --transport http https://mcjars.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcjars.com/mcp

~/.codex/config.toml

[mcp_servers.minecraft]
url = "https://mcjars.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "minecraft": {
      "url": "https://mcjars.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "minecraft": {
      "type": "http",
      "url": "https://mcjars.com/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

download

get_download

Get an exact provider build or the newest matching build when version is omitted. Minecraft and loader versions are separate: use minecraftVersion for the game, version for the full provider build. Returns URLs only; does not download or execute files. No match returns an error without substituting another game version or channel.

providers

list_providers

List available Minecraft server software and proxy providers with their slugs, descriptions, and latest-version summaries.

versions

list_versions

Browse provider builds in catalog order (newest first). Filter by Minecraft version and channel. Each result groups all operating-system downloads for one build. Stable builds only unless requested otherwise.

Endpoints

URL	Transport	State	Latency	Checked
https://mcjars.com/mcp	streamable-http	answering	413 ms	8 min ago

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MCJars — questions

Answers built from our own checks of this server.

What can MCJars do?

It exposes 3 tools, read directly from the server on our last check. Among them: get_download, list_providers, list_versions. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is MCJars working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 449 ms. The bar chart above shows every period we have measured.

How do I connect MCJars?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does MCJars need an API key?

No. MCJars completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is MCJars?

It answers our handshake in 449 ms on average, which is faster than 28% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.