Vyvern Stats
by Vyvern
Vyvern Stats reads real server performance data and shows it in a live panel and in-game readouts, with optional remote graphs.
What it does
The mod reports true MSPT percentiles (p50, p95, p99 and max), TPS and player counts, and it estimates values where exact data is unavailable. It also detects lag spikes, counts chunks at the time of a spike, and localizes the chunks and entities that caused it. The standalone mod exposes these readouts in-game through tps, so the panel is not needed to read them.
Vyvern Bridge is required and must be installed next to Vyvern Stats. Without the Vyvern panel, the mod works on its own and gives in-game readouts. Connecting to the Vyvern panel only adds remote graphs and a companion badge. The mod is published for NeoForge on 1.21.1 and runs on client and server, so the server and every player need it.
Key features
True MSPT percentiles
Tick times are reported as p50, p95, p99 and max, taken from the server rather than averaged on the client.
Lag-spike localization
When a spike happens, the mod records the chunk count and points to the chunks and entities involved.
Live tab list footer
An optional footer shows live TPS and MSPT, and AFK players are greyed out in the tab list.
Live settings panel section
A Vyvern Mods section in the live settings panel shows the same performance data.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Server performance checks
Server owners can watch MSPT percentiles and TPS during play to see whether a slowdown is steady or comes in spikes.
Finding lag sources
After a spike, the chunk and entity localization points to the area that caused it, so the cause can be investigated.
Who it’s for: Server owners and administrators who want to measure tick performance and locate lag causes on a NeoForge 1.21.1 server.
How it compares
PerfTriage is a Server-side only mod for Fabric and NeoForge on 1.21.4, released under the MIT License and not open source. LagShield Ultimate (Anti Lag) is Server-side only and published for NeoForge 1.21.1 under the MIT License, also not open source. Vyvern Stats is client and server and uses a custom license.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Vyvern Stats | NeoForge | 1.21.1 | Client and server | 2026-07-03 |
| PerfTriage | Fabric and NeoForge | 1.21.4 | Server-side only | 2026-05-03 |
| LagShield Ultimate (Anti Lag) | NeoForge | 1.21.1 | Server-side only | 2026-07-22 |
Questions
Does Vyvern Stats need Vyvern Bridge?
Does the server need the Vyvern panel to use the mod?
Which game version does Vyvern Stats support?
In the catalog
Vyvern Stats is one of 8,016 Management mods on ModsFinder, and one of 2,689 Management mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from Vyvern
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What the author says
Summary: Real server telemetry — true MSPT percentiles, TPS and lag-hotspot localization, pushed live to a Vyvern panel (or read in-game standalone). Vyvern Stats reads real performance data straight from the server: true MSPT percentiles (p50/p95/p99/max), TPS, and player counts — not estimates. Connected to a…
Official listing
- Modrinth page
- modrinth.com/mod/vyvern-stats
- Owner
- Vyvern
- Published
- 2026-07-03
- Updated on Modrinth
- 2026-07-03
- Facts verified
- 2026-10-15