How to Make a List of Nearly Every Minecraft Player

2024-02-22

I’ve recently been engaging in some tomfoolery to acquire a list of 51 million Minecraft: Java Edition player UUIDs (out of ~61 million total existing UUIDs).

This blog post will explain exactly what I did to make this list.

Abusing the Mojang API with IPv6

Mojang has an internal API (documented by the community at wiki.vg) which the game uses to convert player usernames to UUIDs and to obtain information about player UUIDs. Mojang also allows anyone to use the API for their own purposes, but with ratelimits (about 10 requests per IP per second).

The most obvious way of circumventing the ratelimits is obtaining proxies, but proxies tend to be slow and obtaining many high-quality proxies is costly.

wiki.vg

wiki.vg uuid to profile and skin/cape

142332351k4586k52.0m64.8m76.7m87.5m96.9m106.1m115.0m124.0m132.9m142.2m151.8m161.0m19

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