How it works

A live price and supply tracker for Pet Simulator 99, sourced directly from the Big Games API. Tracking data since March 2024.

What is RAP?

RAP stands for Recently Average Price — the market price assigned to each item calculated from players purchasing items in the Trade Plaza. PS99DATA records every RAP update and builds a full price history for every item.

What is Exists?

Exists is the number of copies of a pet currently in the game across all player inventories. A lower exists count means the item is rarer. PS99DATA tracks this over time so you can see whether supply is growing, shrinking, or staying flat.

How data is collected

Data is pulled directly from the official Big Games API at ps99.biggamesapi.io. RAP and exists data is fetched every hour, 7 minutes past the hour — immediately after Big Games publishes their update. Only new values are recorded, so the history only grows when something actually changes.

What we track

PS99DATA tracks every item exposed by the Big Games API across all categories — Pets, Eggs, Enchants, Lootboxes, Potions, Fruits, Cards, and more. Items are tracked across all variants: Regular, Golden, Rainbow, and Shiny. History is stored as timestamped data points so every price and supply movement is fully auditable.

Market cap & total exists

The total market cap is the sum of RAP across every tracked item — a single number representing the total value of all tradeable assets in the game. Total exists is the sum of all pet copies across all items. Both are tracked over time and shown on the home page.

Accuracy & limitations

RAP and Exists values are as accurate as what Big Games publishes. PS99DATA does not modify or estimate any values — everything shown is sourced verbatim from their API. Items with 0 RAP may still appear if they have an exists count. Exists tracking is only available for Pets, as the Big Games API only provides exists data for that category.