ModsFinder

Section 31

by USS-Shenzhou

Section 31 gives a server owner a ready-made status page with player counts and resource readings, with no separate monitoring stack to set up.

NeoForgeClient or server, optionalGNU Affero General Public License v3.0 or laterOpen source1.21.1 – 26.2

What it does

Once installed, Section 31 starts a small web page that reports the state of the running game. It tracks the number of players on the server, JVM heap and memory pool usage, system CPU load, system RAM use, and network traffic in and out. The page is meant to work out of the box, as a lighter alternative to setting up a full stack such as Prometheus with Grafana.

The mod loads like any regular NeoForge mod. By default the monitoring page is served on 127.0.0.1:25570 for the server and 127.0.0.1:25571 for the client, so the readings can be opened in a browser on the same machine. Additional metrics can be requested through the issue tracker or added through pull requests in the public source repository.

Section 31 is released under the GNU Affero General Public License v3.0 or later, so the code is open source. Its source code and issue tracker are public. Files are published for NeoForge only, across three release versions, 1.21.1 – 26.2, and the latest file is 26.2-0 for 26.2, published 2026-10-11.

Key features

  1. Player count readout

    The page shows how many players are currently connected to the server.

  2. JVM memory monitoring

    Heap usage and the usage of each JVM memory pool are displayed on the page.

  3. System resource readings

    CPU load, RAM use and network traffic in and out of the machine are reported alongside the game metrics.

  4. Browser-based status page

    Readings are served locally over HTTP, so they open in any browser without an extra service or dashboard.

Compatibility

Latest build for each game version and loader.

26.226.2-0
26.126.1-0
1.21.10.1.2
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Watching a local server

A server owner running on the same machine can keep an eye on memory and CPU while players are online.

Checking a client session

A player running the client can open the client page to see memory use during a game session.

Who it’s for: Server owners who want basic health readings without configuring a separate monitoring stack, and players who want to watch their client's resource use.

Questions

Does Section 31 need to be installed on both sides?

No. It works on either side, and neither needs it, so installing it on the server, the client or both is enough.

Which loader does Section 31 use?

Section 31 is published for NeoForge only, with files for 1.21.1, 26.1 and 26.2.

Can Section 31 replace Prometheus and Grafana?

It offers a simpler built-in page with a fixed set of metrics. Teams that need long-term history or custom dashboards can still use a traditional stack.

In the catalog

Section 31 is one of 8,016 Management mods on ModsFinder, and one of 2,689 Management mods for NeoForge. 13,894 mods support Minecraft 26.2.

Management mods8,016NeoForge modsMods for 26.213,894

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Similar mods

Cherished Worlds1.12.2 – 26.3Default Options1.18 – 26.3Resourcify1.8.9 – 26.3Rebind Narrator1.16.1 – 26.1.2Paxi1.19.2 – 26.1.2Starter Kit1.16.5 – 26.3

What the author says

简单监控是一个轻量级的监控mod，旨在提供对服务器/客户端的开箱即用的监控页面，而不像传统的Prometheus+Grafana方案需要冗长的配置阶段。 Section 31 is a light-weighted monitoring mod, aiming at providing a out-of-the-box monitoring page, without annoying configuration of traditional solution like Prometheus+Grafana.
USS-Shenzhou, on the Modrinth page

Official listing

Owner
USS-Shenzhou
Published
2025-02-10
Updated on Modrinth
2026-10-11
Facts verified
2026-10-15

Tags

Management
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